/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 0.1.25-267fbe0 [2020-07-17 17:56:22,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:56:22,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:56:22,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:56:22,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:56:22,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:56:22,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:56:22,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:56:22,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:56:22,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:56:22,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:56:22,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:56:22,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:56:22,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:56:22,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:56:22,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:56:22,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:56:22,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:56:22,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:56:22,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:56:22,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:56:22,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:56:22,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:56:22,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:56:22,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 17:56:22,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:56:22,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:56:22,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:56:22,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:56:22,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:56:22,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:56:22,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:56:22,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:56:22,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:56:22,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:56:22,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:56:22,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:56:22,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:56:22,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:56:22,535 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:56:22,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:56:22,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:56:22,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:56:22,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:56:22,536 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:56:22,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:56:22,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:56:22,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:56:22,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:56:22,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:56:22,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:56:22,538 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 [2020-07-17 17:56:22,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:56:22,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:56:22,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:56:22,914 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:56:22,915 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:56:22,915 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-07-17 17:56:22,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46652dd34/fcb7904e65ae47c38089025e070d4757/FLAGfbe4352ca [2020-07-17 17:56:23,618 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:56:23,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-07-17 17:56:23,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46652dd34/fcb7904e65ae47c38089025e070d4757/FLAGfbe4352ca [2020-07-17 17:56:23,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46652dd34/fcb7904e65ae47c38089025e070d4757 [2020-07-17 17:56:23,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:56:23,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:56:23,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:56:23,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:56:23,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:56:23,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:56:23" (1/1) ... [2020-07-17 17:56:23,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be4e3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:23, skipping insertion in model container [2020-07-17 17:56:23,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:56:23" (1/1) ... [2020-07-17 17:56:23,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:56:23,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:56:24,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:56:24,542 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:56:24,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:56:24,734 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:56:24,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24 WrapperNode [2020-07-17 17:56:24,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:56:24,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:56:24,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:56:24,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:56:24,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (1/1) ... [2020-07-17 17:56:24,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (1/1) ... [2020-07-17 17:56:24,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (1/1) ... [2020-07-17 17:56:24,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (1/1) ... [2020-07-17 17:56:24,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (1/1) ... [2020-07-17 17:56:24,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (1/1) ... [2020-07-17 17:56:24,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (1/1) ... [2020-07-17 17:56:24,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:56:24,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:56:24,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:56:24,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:56:24,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (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 [2020-07-17 17:56:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:56:25,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:56:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 17:56:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:56:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 17:56:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:56:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 17:56:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 17:56:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:56:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:56:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:56:26,945 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:56:26,945 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 17:56:26,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:56:26 BoogieIcfgContainer [2020-07-17 17:56:26,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:56:26,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:56:26,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:56:26,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:56:26,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:56:23" (1/3) ... [2020-07-17 17:56:26,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724bf594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:56:26, skipping insertion in model container [2020-07-17 17:56:26,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:56:24" (2/3) ... [2020-07-17 17:56:26,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724bf594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:56:26, skipping insertion in model container [2020-07-17 17:56:26,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:56:26" (3/3) ... [2020-07-17 17:56:26,966 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-07-17 17:56:26,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:56:26,988 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:56:27,003 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:56:27,029 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:56:27,030 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:56:27,030 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:56:27,030 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:56:27,030 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:56:27,030 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:56:27,031 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:56:27,031 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:56:27,059 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-07-17 17:56:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-17 17:56:27,075 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:56:27,077 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] [2020-07-17 17:56:27,078 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:56:27,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:56:27,085 INFO L82 PathProgramCache]: Analyzing trace with hash -4985686, now seen corresponding path program 1 times [2020-07-17 17:56:27,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:56:27,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046930807] [2020-07-17 17:56:27,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:56:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:56:27,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046930807] [2020-07-17 17:56:27,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:56:27,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 17:56:27,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133150716] [2020-07-17 17:56:27,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 17:56:27,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:56:27,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 17:56:27,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:56:27,605 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 5 states. [2020-07-17 17:56:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:56:31,879 INFO L93 Difference]: Finished difference Result 1969 states and 2695 transitions. [2020-07-17 17:56:31,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 17:56:31,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-07-17 17:56:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:56:31,908 INFO L225 Difference]: With dead ends: 1969 [2020-07-17 17:56:31,909 INFO L226 Difference]: Without dead ends: 1228 [2020-07-17 17:56:31,922 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 [2020-07-17 17:56:31,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2020-07-17 17:56:32,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 997. [2020-07-17 17:56:32,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-07-17 17:56:32,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1298 transitions. [2020-07-17 17:56:32,113 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1298 transitions. Word has length 67 [2020-07-17 17:56:32,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:56:32,114 INFO L479 AbstractCegarLoop]: Abstraction has 997 states and 1298 transitions. [2020-07-17 17:56:32,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 17:56:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1298 transitions. [2020-07-17 17:56:32,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-17 17:56:32,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:56:32,143 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] [2020-07-17 17:56:32,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:56:32,144 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:56:32,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:56:32,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1110606662, now seen corresponding path program 1 times [2020-07-17 17:56:32,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:56:32,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174052602] [2020-07-17 17:56:32,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:56:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:56:32,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174052602] [2020-07-17 17:56:32,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:56:32,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 17:56:32,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975936100] [2020-07-17 17:56:32,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 17:56:32,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:56:32,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 17:56:32,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-17 17:56:32,452 INFO L87 Difference]: Start difference. First operand 997 states and 1298 transitions. Second operand 8 states. [2020-07-17 17:56:35,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:56:35,805 INFO L93 Difference]: Finished difference Result 2640 states and 3636 transitions. [2020-07-17 17:56:35,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 17:56:35,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-07-17 17:56:35,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:56:35,833 INFO L225 Difference]: With dead ends: 2640 [2020-07-17 17:56:35,834 INFO L226 Difference]: Without dead ends: 1658 [2020-07-17 17:56:35,847 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 [2020-07-17 17:56:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-07-17 17:56:36,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1584. [2020-07-17 17:56:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2020-07-17 17:56:36,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2092 transitions. [2020-07-17 17:56:36,063 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2092 transitions. Word has length 170 [2020-07-17 17:56:36,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:56:36,068 INFO L479 AbstractCegarLoop]: Abstraction has 1584 states and 2092 transitions. [2020-07-17 17:56:36,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 17:56:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2092 transitions. [2020-07-17 17:56:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-17 17:56:36,090 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:56:36,090 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] [2020-07-17 17:56:36,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 17:56:36,091 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:56:36,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:56:36,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1244659725, now seen corresponding path program 1 times [2020-07-17 17:56:36,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:56:36,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869282014] [2020-07-17 17:56:36,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:56:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 102 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-17 17:56:36,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869282014] [2020-07-17 17:56:36,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:56:36,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-17 17:56:36,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113470072] [2020-07-17 17:56:36,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 17:56:36,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:56:36,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 17:56:36,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-17 17:56:36,584 INFO L87 Difference]: Start difference. First operand 1584 states and 2092 transitions. Second operand 9 states. [2020-07-17 17:56:40,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:56:40,646 INFO L93 Difference]: Finished difference Result 3850 states and 5126 transitions. [2020-07-17 17:56:40,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 17:56:40,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2020-07-17 17:56:40,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:56:40,668 INFO L225 Difference]: With dead ends: 3850 [2020-07-17 17:56:40,668 INFO L226 Difference]: Without dead ends: 2281 [2020-07-17 17:56:40,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-07-17 17:56:40,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2020-07-17 17:56:40,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2229. [2020-07-17 17:56:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2229 states. [2020-07-17 17:56:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2839 transitions. [2020-07-17 17:56:40,875 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2839 transitions. Word has length 246 [2020-07-17 17:56:40,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:56:40,876 INFO L479 AbstractCegarLoop]: Abstraction has 2229 states and 2839 transitions. [2020-07-17 17:56:40,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 17:56:40,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2839 transitions. [2020-07-17 17:56:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-17 17:56:40,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:56:40,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:56:40,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 17:56:40,884 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:56:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:56:40,884 INFO L82 PathProgramCache]: Analyzing trace with hash -715471298, now seen corresponding path program 1 times [2020-07-17 17:56:40,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:56:40,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633315698] [2020-07-17 17:56:40,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:56:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 17:56:41,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633315698] [2020-07-17 17:56:41,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:56:41,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-17 17:56:41,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526898897] [2020-07-17 17:56:41,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 17:56:41,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:56:41,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 17:56:41,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 17:56:41,325 INFO L87 Difference]: Start difference. First operand 2229 states and 2839 transitions. Second operand 7 states. [2020-07-17 17:56:45,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:56:45,247 INFO L93 Difference]: Finished difference Result 5207 states and 6696 transitions. [2020-07-17 17:56:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 17:56:45,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-07-17 17:56:45,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:56:45,277 INFO L225 Difference]: With dead ends: 5207 [2020-07-17 17:56:45,278 INFO L226 Difference]: Without dead ends: 2993 [2020-07-17 17:56:45,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-17 17:56:45,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2020-07-17 17:56:45,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2832. [2020-07-17 17:56:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-07-17 17:56:45,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3582 transitions. [2020-07-17 17:56:45,610 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3582 transitions. Word has length 295 [2020-07-17 17:56:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:56:45,611 INFO L479 AbstractCegarLoop]: Abstraction has 2832 states and 3582 transitions. [2020-07-17 17:56:45,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 17:56:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3582 transitions. [2020-07-17 17:56:45,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-07-17 17:56:45,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:56:45,622 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:56:45,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 17:56:45,623 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:56:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:56:45,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1881392687, now seen corresponding path program 1 times [2020-07-17 17:56:45,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:56:45,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207110751] [2020-07-17 17:56:45,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:56:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 153 proven. 178 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-07-17 17:56:46,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207110751] [2020-07-17 17:56:46,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:56:46,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-17 17:56:46,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633150290] [2020-07-17 17:56:46,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 17:56:46,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:56:46,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 17:56:46,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-17 17:56:46,318 INFO L87 Difference]: Start difference. First operand 2832 states and 3582 transitions. Second operand 9 states. [2020-07-17 17:56:50,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:56:50,409 INFO L93 Difference]: Finished difference Result 6938 states and 8644 transitions. [2020-07-17 17:56:50,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-17 17:56:50,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 418 [2020-07-17 17:56:50,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:56:50,444 INFO L225 Difference]: With dead ends: 6938 [2020-07-17 17:56:50,445 INFO L226 Difference]: Without dead ends: 4121 [2020-07-17 17:56:50,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2020-07-17 17:56:50,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4121 states. [2020-07-17 17:56:50,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4121 to 4054. [2020-07-17 17:56:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4054 states. [2020-07-17 17:56:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4054 states to 4054 states and 4890 transitions. [2020-07-17 17:56:50,878 INFO L78 Accepts]: Start accepts. Automaton has 4054 states and 4890 transitions. Word has length 418 [2020-07-17 17:56:50,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:56:50,878 INFO L479 AbstractCegarLoop]: Abstraction has 4054 states and 4890 transitions. [2020-07-17 17:56:50,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 17:56:50,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4054 states and 4890 transitions. [2020-07-17 17:56:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-07-17 17:56:50,895 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:56:50,896 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:56:50,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 17:56:50,896 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:56:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:56:50,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2093984225, now seen corresponding path program 1 times [2020-07-17 17:56:50,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:56:50,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655986361] [2020-07-17 17:56:50,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:56:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:51,698 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 448 proven. 23 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-07-17 17:56:51,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655986361] [2020-07-17 17:56:51,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:56:51,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-17 17:56:51,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477429545] [2020-07-17 17:56:51,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 17:56:51,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:56:51,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 17:56:51,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-17 17:56:51,706 INFO L87 Difference]: Start difference. First operand 4054 states and 4890 transitions. Second operand 9 states. [2020-07-17 17:56:57,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:56:57,699 INFO L93 Difference]: Finished difference Result 8850 states and 10819 transitions. [2020-07-17 17:56:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-17 17:56:57,705 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 511 [2020-07-17 17:56:57,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:56:57,741 INFO L225 Difference]: With dead ends: 8850 [2020-07-17 17:56:57,741 INFO L226 Difference]: Without dead ends: 4393 [2020-07-17 17:56:57,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-07-17 17:56:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2020-07-17 17:56:58,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 3591. [2020-07-17 17:56:58,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3591 states. [2020-07-17 17:56:58,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4083 transitions. [2020-07-17 17:56:58,234 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4083 transitions. Word has length 511 [2020-07-17 17:56:58,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:56:58,243 INFO L479 AbstractCegarLoop]: Abstraction has 3591 states and 4083 transitions. [2020-07-17 17:56:58,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 17:56:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4083 transitions. [2020-07-17 17:56:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2020-07-17 17:56:58,257 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:56:58,257 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, 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, 1, 1, 1, 1, 1] [2020-07-17 17:56:58,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 17:56:58,258 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:56:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:56:58,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1725478862, now seen corresponding path program 1 times [2020-07-17 17:56:58,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:56:58,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829975617] [2020-07-17 17:56:58,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:56:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:56:59,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 452 proven. 140 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2020-07-17 17:56:59,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829975617] [2020-07-17 17:56:59,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:56:59,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-17 17:56:59,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939535305] [2020-07-17 17:56:59,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 17:56:59,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:56:59,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 17:56:59,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 17:56:59,020 INFO L87 Difference]: Start difference. First operand 3591 states and 4083 transitions. Second operand 7 states. [2020-07-17 17:57:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:57:02,421 INFO L93 Difference]: Finished difference Result 8321 states and 9662 transitions. [2020-07-17 17:57:02,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 17:57:02,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 611 [2020-07-17 17:57:02,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:57:02,452 INFO L225 Difference]: With dead ends: 8321 [2020-07-17 17:57:02,452 INFO L226 Difference]: Without dead ends: 5127 [2020-07-17 17:57:02,461 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 [2020-07-17 17:57:02,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5127 states. [2020-07-17 17:57:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5127 to 5093. [2020-07-17 17:57:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5093 states. [2020-07-17 17:57:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 5834 transitions. [2020-07-17 17:57:02,842 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 5834 transitions. Word has length 611 [2020-07-17 17:57:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:57:02,843 INFO L479 AbstractCegarLoop]: Abstraction has 5093 states and 5834 transitions. [2020-07-17 17:57:02,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 17:57:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 5834 transitions. [2020-07-17 17:57:02,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-07-17 17:57:02,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:57:02,857 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, 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, 1, 1, 1, 1, 1] [2020-07-17 17:57:02,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 17:57:02,858 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:57:02,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:57:02,858 INFO L82 PathProgramCache]: Analyzing trace with hash -426045437, now seen corresponding path program 1 times [2020-07-17 17:57:02,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:57:02,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952474257] [2020-07-17 17:57:02,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:57:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 712 proven. 209 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-07-17 17:57:03,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952474257] [2020-07-17 17:57:03,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:57:03,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-07-17 17:57:03,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645588478] [2020-07-17 17:57:03,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 17:57:03,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:57:03,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 17:57:03,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-07-17 17:57:03,981 INFO L87 Difference]: Start difference. First operand 5093 states and 5834 transitions. Second operand 13 states. [2020-07-17 17:57:06,501 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-07-17 17:57:10,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:57:10,294 INFO L93 Difference]: Finished difference Result 11118 states and 12720 transitions. [2020-07-17 17:57:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-17 17:57:10,295 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 612 [2020-07-17 17:57:10,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:57:10,335 INFO L225 Difference]: With dead ends: 11118 [2020-07-17 17:57:10,335 INFO L226 Difference]: Without dead ends: 6023 [2020-07-17 17:57:10,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2020-07-17 17:57:10,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2020-07-17 17:57:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 5562. [2020-07-17 17:57:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5562 states. [2020-07-17 17:57:11,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 6236 transitions. [2020-07-17 17:57:11,134 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 6236 transitions. Word has length 612 [2020-07-17 17:57:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:57:11,135 INFO L479 AbstractCegarLoop]: Abstraction has 5562 states and 6236 transitions. [2020-07-17 17:57:11,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 17:57:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 6236 transitions. [2020-07-17 17:57:11,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2020-07-17 17:57:11,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:57:11,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:57:11,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 17:57:11,150 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:57:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:57:11,150 INFO L82 PathProgramCache]: Analyzing trace with hash -544940428, now seen corresponding path program 1 times [2020-07-17 17:57:11,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:57:11,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517725657] [2020-07-17 17:57:11,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:57:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 775 proven. 279 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-07-17 17:57:12,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517725657] [2020-07-17 17:57:12,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:57:12,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-07-17 17:57:12,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852645915] [2020-07-17 17:57:12,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 17:57:12,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:57:12,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 17:57:12,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-07-17 17:57:12,977 INFO L87 Difference]: Start difference. First operand 5562 states and 6236 transitions. Second operand 13 states. [2020-07-17 17:57:18,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:57:18,758 INFO L93 Difference]: Finished difference Result 12242 states and 13976 transitions. [2020-07-17 17:57:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 17:57:18,762 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 676 [2020-07-17 17:57:18,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:57:18,794 INFO L225 Difference]: With dead ends: 12242 [2020-07-17 17:57:18,795 INFO L226 Difference]: Without dead ends: 6942 [2020-07-17 17:57:18,811 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 [2020-07-17 17:57:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6942 states. [2020-07-17 17:57:19,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6942 to 6300. [2020-07-17 17:57:19,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6300 states. [2020-07-17 17:57:19,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 7155 transitions. [2020-07-17 17:57:19,616 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 7155 transitions. Word has length 676 [2020-07-17 17:57:19,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:57:19,617 INFO L479 AbstractCegarLoop]: Abstraction has 6300 states and 7155 transitions. [2020-07-17 17:57:19,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 17:57:19,617 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 7155 transitions. [2020-07-17 17:57:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2020-07-17 17:57:19,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:57:19,630 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:57:19,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 17:57:19,631 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:57:19,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:57:19,631 INFO L82 PathProgramCache]: Analyzing trace with hash 864836317, now seen corresponding path program 1 times [2020-07-17 17:57:19,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:57:19,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446644261] [2020-07-17 17:57:19,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:57:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1796 backedges. 603 proven. 280 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2020-07-17 17:57:20,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446644261] [2020-07-17 17:57:20,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:57:20,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-07-17 17:57:20,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280573652] [2020-07-17 17:57:20,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 17:57:20,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:57:20,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 17:57:20,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-17 17:57:20,917 INFO L87 Difference]: Start difference. First operand 6300 states and 7155 transitions. Second operand 11 states. [2020-07-17 17:57:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:57:27,899 INFO L93 Difference]: Finished difference Result 11636 states and 13319 transitions. [2020-07-17 17:57:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-17 17:57:27,900 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 755 [2020-07-17 17:57:27,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:57:27,925 INFO L225 Difference]: With dead ends: 11636 [2020-07-17 17:57:27,926 INFO L226 Difference]: Without dead ends: 6313 [2020-07-17 17:57:27,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=263, Invalid=729, Unknown=0, NotChecked=0, Total=992 [2020-07-17 17:57:27,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6313 states. [2020-07-17 17:57:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6313 to 6296. [2020-07-17 17:57:28,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6296 states. [2020-07-17 17:57:28,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 7133 transitions. [2020-07-17 17:57:28,855 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 7133 transitions. Word has length 755 [2020-07-17 17:57:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:57:28,856 INFO L479 AbstractCegarLoop]: Abstraction has 6296 states and 7133 transitions. [2020-07-17 17:57:28,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 17:57:28,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 7133 transitions. [2020-07-17 17:57:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2020-07-17 17:57:28,874 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:57:28,875 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] [2020-07-17 17:57:28,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 17:57:28,875 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:57:28,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:57:28,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1910435264, now seen corresponding path program 1 times [2020-07-17 17:57:28,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:57:28,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869238003] [2020-07-17 17:57:28,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:57:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 325 proven. 6 refuted. 0 times theorem prover too weak. 1694 trivial. 0 not checked. [2020-07-17 17:57:30,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869238003] [2020-07-17 17:57:30,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:57:30,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-07-17 17:57:30,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931676665] [2020-07-17 17:57:30,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 17:57:30,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:57:30,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 17:57:30,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:57:30,098 INFO L87 Difference]: Start difference. First operand 6296 states and 7133 transitions. Second operand 5 states. [2020-07-17 17:57:32,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:57:32,854 INFO L93 Difference]: Finished difference Result 13222 states and 15216 transitions. [2020-07-17 17:57:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 17:57:32,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 888 [2020-07-17 17:57:32,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:57:32,889 INFO L225 Difference]: With dead ends: 13222 [2020-07-17 17:57:32,890 INFO L226 Difference]: Without dead ends: 7903 [2020-07-17 17:57:32,902 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 [2020-07-17 17:57:32,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2020-07-17 17:57:33,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 7679. [2020-07-17 17:57:33,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7679 states. [2020-07-17 17:57:33,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7679 states to 7679 states and 8793 transitions. [2020-07-17 17:57:33,640 INFO L78 Accepts]: Start accepts. Automaton has 7679 states and 8793 transitions. Word has length 888 [2020-07-17 17:57:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:57:33,641 INFO L479 AbstractCegarLoop]: Abstraction has 7679 states and 8793 transitions. [2020-07-17 17:57:33,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 17:57:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7679 states and 8793 transitions. [2020-07-17 17:57:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2020-07-17 17:57:33,654 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:57:33,655 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] [2020-07-17 17:57:33,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 17:57:33,655 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:57:33,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:57:33,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1844532278, now seen corresponding path program 1 times [2020-07-17 17:57:33,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:57:33,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640622438] [2020-07-17 17:57:33,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:57:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 867 proven. 37 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2020-07-17 17:57:34,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640622438] [2020-07-17 17:57:34,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:57:34,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-17 17:57:34,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313010180] [2020-07-17 17:57:34,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 17:57:34,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:57:34,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 17:57:34,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-17 17:57:34,776 INFO L87 Difference]: Start difference. First operand 7679 states and 8793 transitions. Second operand 9 states. [2020-07-17 17:57:40,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:57:40,229 INFO L93 Difference]: Finished difference Result 15560 states and 17862 transitions. [2020-07-17 17:57:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-17 17:57:40,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 900 [2020-07-17 17:57:40,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:57:40,267 INFO L225 Difference]: With dead ends: 15560 [2020-07-17 17:57:40,267 INFO L226 Difference]: Without dead ends: 8858 [2020-07-17 17:57:40,280 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 [2020-07-17 17:57:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8858 states. [2020-07-17 17:57:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8858 to 7685. [2020-07-17 17:57:41,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7685 states. [2020-07-17 17:57:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7685 states to 7685 states and 8733 transitions. [2020-07-17 17:57:41,071 INFO L78 Accepts]: Start accepts. Automaton has 7685 states and 8733 transitions. Word has length 900 [2020-07-17 17:57:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:57:41,072 INFO L479 AbstractCegarLoop]: Abstraction has 7685 states and 8733 transitions. [2020-07-17 17:57:41,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 17:57:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 7685 states and 8733 transitions. [2020-07-17 17:57:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2020-07-17 17:57:41,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:57:41,084 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] [2020-07-17 17:57:41,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-17 17:57:41,085 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:57:41,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:57:41,085 INFO L82 PathProgramCache]: Analyzing trace with hash -558197454, now seen corresponding path program 1 times [2020-07-17 17:57:41,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:57:41,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875664118] [2020-07-17 17:57:41,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:57:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:57:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2547 backedges. 373 proven. 56 refuted. 0 times theorem prover too weak. 2118 trivial. 0 not checked. [2020-07-17 17:57:42,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875664118] [2020-07-17 17:57:42,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 17:57:42,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-17 17:57:42,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146531241] [2020-07-17 17:57:42,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 17:57:42,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:57:42,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 17:57:42,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 17:57:42,016 INFO L87 Difference]: Start difference. First operand 7685 states and 8733 transitions. Second operand 7 states. [2020-07-17 17:57:46,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:57:46,836 INFO L93 Difference]: Finished difference Result 9434 states and 10674 transitions. [2020-07-17 17:57:46,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 17:57:46,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 916 [2020-07-17 17:57:46,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:57:46,840 INFO L225 Difference]: With dead ends: 9434 [2020-07-17 17:57:46,840 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 17:57:46,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-07-17 17:57:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 17:57:46,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 17:57:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 17:57:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 17:57:46,860 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 916 [2020-07-17 17:57:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:57:46,861 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 17:57:46,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 17:57:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 17:57:46,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 17:57:46,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-17 17:57:46,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 17:57:48,510 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-07-17 17:57:49,249 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-07-17 17:57:50,390 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-07-17 17:57:53,072 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-07-17 17:57:58,103 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-07-17 17:58:01,233 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-07-17 17:58:03,138 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-07-17 17:58:08,179 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-07-17 17:58:13,166 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-07-17 17:58:17,786 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-07-17 17:58:28,771 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2020-07-17 17:58:32,024 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-07-17 17:58:44,810 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-07-17 17:58:49,745 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2020-07-17 17:58:56,668 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-07-17 17:58:59,755 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 149 [2020-07-17 17:59:16,901 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-07-17 17:59:17,507 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 142 [2020-07-17 17:59:31,548 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 76 [2020-07-17 17:59:33,995 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 310 DAG size of output: 93 [2020-07-17 17:59:35,017 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 179 DAG size of output: 73 [2020-07-17 17:59:36,238 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 205 DAG size of output: 70 [2020-07-17 17:59:37,045 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 62 [2020-07-17 17:59:38,117 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 210 DAG size of output: 75 [2020-07-17 17:59:39,176 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 190 DAG size of output: 62 [2020-07-17 17:59:40,238 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 187 DAG size of output: 73 [2020-07-17 17:59:41,042 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 62 [2020-07-17 17:59:43,390 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 17:59:44,335 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-07-17 17:59:46,738 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 17:59:47,557 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 62 [2020-07-17 17:59:48,606 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 206 DAG size of output: 73 [2020-07-17 17:59:49,510 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 70 [2020-07-17 17:59:50,561 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 182 DAG size of output: 78 [2020-07-17 17:59:51,750 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 191 DAG size of output: 64 [2020-07-17 17:59:52,819 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-07-17 17:59:53,966 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 175 DAG size of output: 67 [2020-07-17 17:59:54,944 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 73 [2020-07-17 17:59:56,070 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 189 DAG size of output: 80 [2020-07-17 17:59:57,233 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 188 DAG size of output: 61 [2020-07-17 17:59:59,144 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:00:00,206 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 172 DAG size of output: 62 [2020-07-17 18:00:01,265 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2020-07-17 18:00:02,425 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 182 DAG size of output: 75 [2020-07-17 18:00:03,700 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 190 DAG size of output: 63 [2020-07-17 18:00:04,632 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 72 [2020-07-17 18:00:05,662 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 187 DAG size of output: 76 [2020-07-17 18:00:06,954 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 230 DAG size of output: 84 [2020-07-17 18:00:07,882 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-07-17 18:00:09,061 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 174 DAG size of output: 65 [2020-07-17 18:00:10,367 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 212 DAG size of output: 84 [2020-07-17 18:00:11,422 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 173 DAG size of output: 63 [2020-07-17 18:00:13,869 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:15,134 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 207 DAG size of output: 74 [2020-07-17 18:00:16,029 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 64 [2020-07-17 18:00:18,474 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:19,665 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 186 DAG size of output: 83 [2020-07-17 18:00:20,685 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 189 DAG size of output: 77 [2020-07-17 18:00:21,982 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 185 DAG size of output: 79 [2020-07-17 18:00:22,898 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-07-17 18:00:25,358 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:26,450 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 172 DAG size of output: 63 [2020-07-17 18:00:27,605 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 213 DAG size of output: 75 [2020-07-17 18:00:28,648 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 204 DAG size of output: 73 [2020-07-17 18:00:31,129 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:32,213 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 180 DAG size of output: 74 [2020-07-17 18:00:34,726 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:35,912 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 193 DAG size of output: 64 [2020-07-17 18:00:37,140 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2020-07-17 18:00:38,517 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 187 DAG size of output: 84 [2020-07-17 18:00:39,621 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 172 DAG size of output: 62 [2020-07-17 18:00:40,815 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 175 DAG size of output: 67 [2020-07-17 18:00:43,320 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:44,325 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 81 [2020-07-17 18:00:45,634 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 185 DAG size of output: 78 [2020-07-17 18:00:47,096 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 191 DAG size of output: 79 [2020-07-17 18:00:48,484 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 205 DAG size of output: 85 [2020-07-17 18:00:49,621 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 204 DAG size of output: 70 [2020-07-17 18:00:50,811 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 204 DAG size of output: 71 [2020-07-17 18:00:53,345 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:55,896 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:00:58,473 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:01:01,048 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:01:02,506 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 185 DAG size of output: 81 [2020-07-17 18:01:03,453 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 70 [2020-07-17 18:01:04,858 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 187 DAG size of output: 84 [2020-07-17 18:01:06,146 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 189 DAG size of output: 77 [2020-07-17 18:01:07,115 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 73 [2020-07-17 18:01:09,725 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:01:10,687 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 68 [2020-07-17 18:01:11,715 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 185 DAG size of output: 72 [2020-07-17 18:01:14,315 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:01:15,284 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 71 [2020-07-17 18:01:16,591 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 190 DAG size of output: 67 [2020-07-17 18:01:17,942 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 190 DAG size of output: 67 [2020-07-17 18:01:20,014 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:01:20,920 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 62 [2020-07-17 18:01:22,137 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:01:23,369 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:01:24,716 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:01:26,787 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:01:28,027 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:01:30,133 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:01:31,347 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:01:32,709 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:01:34,834 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:01:36,942 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:01:38,308 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:01:40,419 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:01:42,530 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:01:44,658 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:01:45,839 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 180 DAG size of output: 62 [2020-07-17 18:01:47,109 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:01:48,256 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 180 DAG size of output: 62 [2020-07-17 18:01:50,417 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:01:51,802 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:01:53,973 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:01:55,383 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 179 DAG size of output: 70 [2020-07-17 18:01:56,729 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 196 DAG size of output: 72 [2020-07-17 18:01:58,073 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 185 DAG size of output: 82 [2020-07-17 18:02:00,884 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 310 DAG size of output: 93 [2020-07-17 18:02:02,205 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 176 DAG size of output: 67 [2020-07-17 18:02:03,518 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 191 DAG size of output: 82 [2020-07-17 18:02:04,702 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-17 18:02:07,509 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:02:08,804 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 175 DAG size of output: 68 [2020-07-17 18:02:10,137 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 188 DAG size of output: 76 [2020-07-17 18:02:11,572 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 207 DAG size of output: 74 [2020-07-17 18:02:12,683 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-07-17 18:02:13,821 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 185 DAG size of output: 71 [2020-07-17 18:02:15,041 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 203 DAG size of output: 69 [2020-07-17 18:02:16,235 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 184 DAG size of output: 75 [2020-07-17 18:02:17,506 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 176 DAG size of output: 65 [2020-07-17 18:02:19,257 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 205 DAG size of output: 91 [2020-07-17 18:02:20,592 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 183 DAG size of output: 64 [2020-07-17 18:02:22,846 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:02:24,174 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 191 DAG size of output: 64 [2020-07-17 18:02:26,434 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:02:27,684 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 172 DAG size of output: 62 [2020-07-17 18:02:28,763 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 193 DAG size of output: 70 [2020-07-17 18:02:30,814 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 269 DAG size of output: 87 [2020-07-17 18:02:31,901 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2020-07-17 18:02:32,991 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 182 DAG size of output: 73 [2020-07-17 18:02:34,300 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 175 DAG size of output: 64 [2020-07-17 18:02:35,836 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 185 DAG size of output: 79 [2020-07-17 18:02:37,071 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 181 DAG size of output: 81 [2020-07-17 18:02:38,370 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 179 DAG size of output: 62 [2020-07-17 18:02:39,595 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 178 DAG size of output: 73 [2020-07-17 18:02:42,612 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 310 DAG size of output: 93 [2020-07-17 18:02:43,720 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2020-07-17 18:02:45,154 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 197 DAG size of output: 72 [2020-07-17 18:02:46,630 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 189 DAG size of output: 81 [2020-07-17 18:02:48,083 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 194 DAG size of output: 88 [2020-07-17 18:02:49,423 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:02:51,775 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:02:52,869 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-07-17 18:02:54,226 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 188 DAG size of output: 64 [2020-07-17 18:02:56,612 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:02:57,930 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 187 DAG size of output: 70 [2020-07-17 18:02:59,349 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 185 DAG size of output: 65 [2020-07-17 18:03:00,600 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 187 DAG size of output: 76 [2020-07-17 18:03:01,921 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 172 DAG size of output: 62 [2020-07-17 18:03:04,335 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:03:07,405 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:03:08,763 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 188 DAG size of output: 89 [2020-07-17 18:03:10,215 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 177 DAG size of output: 65 [2020-07-17 18:03:12,092 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 244 DAG size of output: 82 [2020-07-17 18:03:13,459 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 175 DAG size of output: 63 [2020-07-17 18:03:14,929 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 207 DAG size of output: 83 [2020-07-17 18:03:18,043 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:03:19,297 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 186 DAG size of output: 62 [2020-07-17 18:03:20,728 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 197 DAG size of output: 85 [2020-07-17 18:03:22,077 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 172 DAG size of output: 63 [2020-07-17 18:03:23,479 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 184 DAG size of output: 68 [2020-07-17 18:03:25,339 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 193 DAG size of output: 86 [2020-07-17 18:03:26,566 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 179 DAG size of output: 65 [2020-07-17 18:03:29,817 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:03:32,997 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:03:34,820 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 191 DAG size of output: 79 [2020-07-17 18:03:36,475 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 207 DAG size of output: 74 [2020-07-17 18:03:38,789 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 278 DAG size of output: 82 [2020-07-17 18:03:42,078 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:03:43,274 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 181 DAG size of output: 74 [2020-07-17 18:03:44,543 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 183 DAG size of output: 74 [2020-07-17 18:03:45,762 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 180 DAG size of output: 72 [2020-07-17 18:03:48,998 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:03:50,501 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 177 DAG size of output: 65 [2020-07-17 18:03:52,008 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 194 DAG size of output: 66 [2020-07-17 18:03:53,534 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 191 DAG size of output: 64 [2020-07-17 18:03:56,127 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:03:57,795 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:04:00,396 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:04:01,930 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:04:03,777 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 205 DAG size of output: 76 [2020-07-17 18:04:05,942 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 255 DAG size of output: 81 [2020-07-17 18:04:08,636 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:04:10,466 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 218 DAG size of output: 85 [2020-07-17 18:04:13,109 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:04:15,730 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:04:17,215 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 180 DAG size of output: 62 [2020-07-17 18:04:18,935 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:04:20,661 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:04:23,389 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:04:24,995 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:04:27,733 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:04:30,498 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:04:31,943 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 193 DAG size of output: 68 [2020-07-17 18:04:33,572 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 191 DAG size of output: 64 [2020-07-17 18:04:35,120 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 173 DAG size of output: 63 [2020-07-17 18:04:36,854 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 207 DAG size of output: 84 [2020-07-17 18:04:38,149 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-07-17 18:04:39,920 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 207 DAG size of output: 74 [2020-07-17 18:04:41,235 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 175 DAG size of output: 69 [2020-07-17 18:04:42,678 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 204 DAG size of output: 73 [2020-07-17 18:04:46,362 WARN L193 SmtUtils]: Spent 3.68 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:04:47,944 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 184 DAG size of output: 61 [2020-07-17 18:04:49,231 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 191 DAG size of output: 66 [2020-07-17 18:04:50,986 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 175 DAG size of output: 67 [2020-07-17 18:04:52,352 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 178 DAG size of output: 72 [2020-07-17 18:04:53,695 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 190 DAG size of output: 71 [2020-07-17 18:04:55,526 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 186 DAG size of output: 83 [2020-07-17 18:04:56,911 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 175 DAG size of output: 73 [2020-07-17 18:04:59,819 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:05:01,269 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-07-17 18:05:05,526 WARN L193 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 310 DAG size of output: 93 [2020-07-17 18:05:07,037 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-07-17 18:05:08,827 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-17 18:05:10,624 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 194 DAG size of output: 66 [2020-07-17 18:05:12,514 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 202 DAG size of output: 80 [2020-07-17 18:05:16,348 WARN L193 SmtUtils]: Spent 3.82 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:05:17,858 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 181 DAG size of output: 67 [2020-07-17 18:05:19,535 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 182 DAG size of output: 79 [2020-07-17 18:05:20,987 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 179 DAG size of output: 68 [2020-07-17 18:05:22,773 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 175 DAG size of output: 64 [2020-07-17 18:05:25,023 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 191 DAG size of output: 79 [2020-07-17 18:05:26,644 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 183 DAG size of output: 72 [2020-07-17 18:05:28,444 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 175 DAG size of output: 67 [2020-07-17 18:05:30,073 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 185 DAG size of output: 72 [2020-07-17 18:05:31,924 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 194 DAG size of output: 66 [2020-07-17 18:05:33,870 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 195 DAG size of output: 83 [2020-07-17 18:05:35,388 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-07-17 18:05:37,395 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 185 DAG size of output: 78 [2020-07-17 18:05:39,200 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-07-17 18:05:43,459 WARN L193 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:05:46,854 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:05:48,896 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 194 DAG size of output: 83 [2020-07-17 18:05:52,456 WARN L193 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 236 DAG size of output: 94 [2020-07-17 18:05:54,032 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 178 DAG size of output: 73 [2020-07-17 18:05:55,828 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-07-17 18:05:57,800 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 175 DAG size of output: 68 [2020-07-17 18:05:59,753 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 188 DAG size of output: 74 [2020-07-17 18:06:03,142 WARN L193 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:06:04,897 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 179 DAG size of output: 74 [2020-07-17 18:06:09,515 WARN L193 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 310 DAG size of output: 93 [2020-07-17 18:06:11,798 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 205 DAG size of output: 70 [2020-07-17 18:06:13,865 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 177 DAG size of output: 64 [2020-07-17 18:06:15,770 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-07-17 18:06:17,945 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 175 DAG size of output: 64 [2020-07-17 18:06:19,542 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 176 DAG size of output: 64 [2020-07-17 18:06:21,776 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 185 DAG size of output: 82 [2020-07-17 18:06:23,446 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 178 DAG size of output: 64 [2020-07-17 18:06:25,445 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 173 DAG size of output: 63 [2020-07-17 18:06:27,150 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 184 DAG size of output: 70 [2020-07-17 18:06:29,325 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 196 DAG size of output: 72 [2020-07-17 18:06:31,497 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 189 DAG size of output: 75 [2020-07-17 18:06:36,244 WARN L193 SmtUtils]: Spent 4.74 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:06:39,133 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 205 DAG size of output: 91 [2020-07-17 18:06:43,845 WARN L193 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:06:48,861 WARN L193 SmtUtils]: Spent 5.00 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:06:51,297 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 183 DAG size of output: 70 [2020-07-17 18:06:53,688 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 178 DAG size of output: 67 [2020-07-17 18:06:58,610 WARN L193 SmtUtils]: Spent 4.91 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:07:00,764 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 184 DAG size of output: 61 [2020-07-17 18:07:03,347 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 185 DAG size of output: 77 [2020-07-17 18:07:08,503 WARN L193 SmtUtils]: Spent 5.15 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:07:11,986 WARN L193 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 258 DAG size of output: 91 [2020-07-17 18:07:14,692 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 177 DAG size of output: 69 [2020-07-17 18:07:16,592 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 179 DAG size of output: 74 [2020-07-17 18:07:21,855 WARN L193 SmtUtils]: Spent 5.24 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:07:23,766 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-07-17 18:07:25,923 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 158 DAG size of output: 51 [2020-07-17 18:07:28,379 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 196 DAG size of output: 72 [2020-07-17 18:07:34,041 WARN L193 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:07:36,598 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 194 DAG size of output: 66 [2020-07-17 18:07:38,997 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 183 DAG size of output: 72 [2020-07-17 18:07:40,910 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 179 DAG size of output: 68 [2020-07-17 18:07:43,713 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 185 DAG size of output: 79 [2020-07-17 18:07:46,302 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 192 DAG size of output: 62 [2020-07-17 18:07:48,200 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:07:50,413 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 190 DAG size of output: 65 [2020-07-17 18:07:55,988 WARN L193 SmtUtils]: Spent 5.57 s on a formula simplification. DAG size of input: 304 DAG size of output: 91 [2020-07-17 18:07:58,607 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:08:03,205 WARN L193 SmtUtils]: Spent 4.59 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:08:07,619 WARN L193 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:08:10,592 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:08:12,235 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 144 DAG size of output: 62 [2020-07-17 18:08:14,238 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 190 DAG size of output: 65 [2020-07-17 18:08:18,047 WARN L193 SmtUtils]: Spent 3.80 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:08:20,244 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 180 DAG size of output: 62 [2020-07-17 18:08:22,213 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 193 DAG size of output: 68 [2020-07-17 18:08:23,904 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-07-17 18:08:26,226 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 184 DAG size of output: 62 [2020-07-17 18:08:28,142 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-07-17 18:08:30,830 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 185 DAG size of output: 81 [2020-07-17 18:08:34,580 WARN L193 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:08:38,485 WARN L193 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:08:40,701 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:08:43,151 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:08:45,660 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-17 18:08:49,445 WARN L193 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:08:51,728 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:08:53,945 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:08:57,917 WARN L193 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:09:00,016 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 158 DAG size of output: 51 [2020-07-17 18:09:04,056 WARN L193 SmtUtils]: Spent 4.03 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:09:08,190 WARN L193 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:09:10,577 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-07-17 18:09:12,556 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 204 DAG size of output: 73 [2020-07-17 18:09:16,757 WARN L193 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 292 DAG size of output: 84 [2020-07-17 18:09:18,726 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 183 DAG size of output: 72 [2020-07-17 18:09:20,648 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-07-17 18:09:24,768 WARN L193 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:09:29,028 WARN L193 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 308 DAG size of output: 74 [2020-07-17 18:09:33,322 WARN L193 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 308 DAG size of output: 74