java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 19:09:58,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 19:09:58,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 19:09:58,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 19:09:58,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 19:09:58,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 19:09:58,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 19:09:58,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 19:09:58,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 19:09:58,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 19:09:58,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 19:09:58,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 19:09:58,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 19:09:58,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 19:09:58,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 19:09:58,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 19:09:58,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 19:09:58,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 19:09:58,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 19:09:58,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 19:09:58,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 19:09:58,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 19:09:58,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 19:09:58,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 19:09:58,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-07 19:09:58,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 19:09:58,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 19:09:58,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 19:09:58,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 19:09:58,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 19:09:58,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 19:09:58,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 19:09:58,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 19:09:58,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 19:09:58,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 19:09:58,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 19:09:58,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-07 19:09:58,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 19:09:58,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 19:09:58,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 19:09:58,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 19:09:58,212 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 19:09:58,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 19:09:58,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 19:09:58,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 19:09:58,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 19:09:58,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 19:09:58,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 19:09:58,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 19:09:58,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 19:09:58,214 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 19:09:58,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 19:09:58,214 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 19:09:58,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 19:09:58,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 19:09:58,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 19:09:58,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 19:09:58,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 19:09:58,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 19:09:58,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 19:09:58,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 19:09:58,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 19:09:58,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 19:09:58,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 19:09:58,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 19:09:58,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 19:09:58,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 19:09:58,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 19:09:58,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 19:09:58,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 19:09:58,263 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 19:09:58,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51.c [2019-09-07 19:09:58,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b4ef1ea/b6f6a97141c440e9b36e8e12cb054f16/FLAG043046631 [2019-09-07 19:09:59,154 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 19:09:59,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label51.c [2019-09-07 19:09:59,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b4ef1ea/b6f6a97141c440e9b36e8e12cb054f16/FLAG043046631 [2019-09-07 19:09:59,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b4ef1ea/b6f6a97141c440e9b36e8e12cb054f16 [2019-09-07 19:09:59,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 19:09:59,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 19:09:59,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 19:09:59,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 19:09:59,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 19:09:59,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:09:59" (1/1) ... [2019-09-07 19:09:59,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335c662c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:09:59, skipping insertion in model container [2019-09-07 19:09:59,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:09:59" (1/1) ... [2019-09-07 19:09:59,712 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 19:09:59,881 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 19:10:01,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 19:10:01,302 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 19:10:01,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 19:10:01,984 INFO L192 MainTranslator]: Completed translation [2019-09-07 19:10:01,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01 WrapperNode [2019-09-07 19:10:01,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 19:10:01,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 19:10:01,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 19:10:01,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 19:10:02,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (1/1) ... [2019-09-07 19:10:02,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (1/1) ... [2019-09-07 19:10:02,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (1/1) ... [2019-09-07 19:10:02,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (1/1) ... [2019-09-07 19:10:02,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (1/1) ... [2019-09-07 19:10:02,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (1/1) ... [2019-09-07 19:10:02,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (1/1) ... [2019-09-07 19:10:02,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 19:10:02,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 19:10:02,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 19:10:02,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 19:10:02,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (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 [2019-09-07 19:10:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 19:10:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 19:10:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 19:10:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 19:10:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 19:10:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 19:10:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 19:10:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 19:10:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 19:10:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 19:10:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 19:10:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 19:10:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 19:10:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 19:10:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 19:10:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 19:10:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 19:10:07,285 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 19:10:07,286 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 19:10:07,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:10:07 BoogieIcfgContainer [2019-09-07 19:10:07,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 19:10:07,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 19:10:07,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 19:10:07,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 19:10:07,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 07:09:59" (1/3) ... [2019-09-07 19:10:07,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2203c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:10:07, skipping insertion in model container [2019-09-07 19:10:07,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:10:01" (2/3) ... [2019-09-07 19:10:07,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2203c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:10:07, skipping insertion in model container [2019-09-07 19:10:07,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:10:07" (3/3) ... [2019-09-07 19:10:07,300 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label51.c [2019-09-07 19:10:07,310 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 19:10:07,320 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 19:10:07,337 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 19:10:07,387 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 19:10:07,388 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 19:10:07,388 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 19:10:07,388 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 19:10:07,388 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 19:10:07,388 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 19:10:07,389 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 19:10:07,389 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 19:10:07,389 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 19:10:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states. [2019-09-07 19:10:07,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-07 19:10:07,449 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:10:07,450 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:10:07,452 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:10:07,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:10:07,457 INFO L82 PathProgramCache]: Analyzing trace with hash 10531578, now seen corresponding path program 1 times [2019-09-07 19:10:07,458 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:10:07,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:10:07,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:07,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:10:07,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:10:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:10:07,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:10:07,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 19:10:07,704 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 19:10:07,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 19:10:07,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 19:10:07,723 INFO L87 Difference]: Start difference. First operand 839 states. Second operand 3 states. [2019-09-07 19:10:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:10:13,498 INFO L93 Difference]: Finished difference Result 2443 states and 4697 transitions. [2019-09-07 19:10:13,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 19:10:13,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-09-07 19:10:13,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:10:13,532 INFO L225 Difference]: With dead ends: 2443 [2019-09-07 19:10:13,532 INFO L226 Difference]: Without dead ends: 1542 [2019-09-07 19:10:13,544 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 19:10:13,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2019-09-07 19:10:13,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1542. [2019-09-07 19:10:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1542 states. [2019-09-07 19:10:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2750 transitions. [2019-09-07 19:10:13,700 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2750 transitions. Word has length 17 [2019-09-07 19:10:13,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:10:13,700 INFO L475 AbstractCegarLoop]: Abstraction has 1542 states and 2750 transitions. [2019-09-07 19:10:13,700 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 19:10:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2750 transitions. [2019-09-07 19:10:13,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-07 19:10:13,708 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:10:13,708 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 19:10:13,709 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:10:13,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:10:13,710 INFO L82 PathProgramCache]: Analyzing trace with hash 673608623, now seen corresponding path program 1 times [2019-09-07 19:10:13,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:10:13,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:10:13,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:13,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:10:13,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:10:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:10:13,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:10:13,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 19:10:13,999 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 19:10:14,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 19:10:14,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-07 19:10:14,001 INFO L87 Difference]: Start difference. First operand 1542 states and 2750 transitions. Second operand 5 states. [2019-09-07 19:10:20,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:10:20,626 INFO L93 Difference]: Finished difference Result 4690 states and 8403 transitions. [2019-09-07 19:10:20,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 19:10:20,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2019-09-07 19:10:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:10:20,649 INFO L225 Difference]: With dead ends: 4690 [2019-09-07 19:10:20,649 INFO L226 Difference]: Without dead ends: 3154 [2019-09-07 19:10:20,655 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-07 19:10:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2019-09-07 19:10:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 3122. [2019-09-07 19:10:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3122 states. [2019-09-07 19:10:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5336 transitions. [2019-09-07 19:10:20,775 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5336 transitions. Word has length 90 [2019-09-07 19:10:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:10:20,776 INFO L475 AbstractCegarLoop]: Abstraction has 3122 states and 5336 transitions. [2019-09-07 19:10:20,776 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 19:10:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5336 transitions. [2019-09-07 19:10:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-07 19:10:20,780 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:10:20,781 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 19:10:20,781 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:10:20,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:10:20,782 INFO L82 PathProgramCache]: Analyzing trace with hash -836523246, now seen corresponding path program 1 times [2019-09-07 19:10:20,782 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:10:20,783 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:10:20,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:20,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:10:20,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:10:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:10:20,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:10:20,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 19:10:20,940 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 19:10:20,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 19:10:20,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-07 19:10:20,941 INFO L87 Difference]: Start difference. First operand 3122 states and 5336 transitions. Second operand 5 states. [2019-09-07 19:10:28,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:10:28,049 INFO L93 Difference]: Finished difference Result 9471 states and 16408 transitions. [2019-09-07 19:10:28,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-07 19:10:28,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2019-09-07 19:10:28,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:10:28,092 INFO L225 Difference]: With dead ends: 9471 [2019-09-07 19:10:28,095 INFO L226 Difference]: Without dead ends: 6355 [2019-09-07 19:10:28,106 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 19:10:28,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2019-09-07 19:10:28,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6318. [2019-09-07 19:10:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6318 states. [2019-09-07 19:10:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 9478 transitions. [2019-09-07 19:10:28,355 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 9478 transitions. Word has length 95 [2019-09-07 19:10:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:10:28,356 INFO L475 AbstractCegarLoop]: Abstraction has 6318 states and 9478 transitions. [2019-09-07 19:10:28,356 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 19:10:28,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 9478 transitions. [2019-09-07 19:10:28,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-07 19:10:28,370 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:10:28,373 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:10:28,373 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:10:28,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:10:28,374 INFO L82 PathProgramCache]: Analyzing trace with hash -665869234, now seen corresponding path program 1 times [2019-09-07 19:10:28,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:10:28,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:10:28,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:28,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:10:28,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:10:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:10:28,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:10:28,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 19:10:28,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 19:10:28,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 19:10:28,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 19:10:28,641 INFO L87 Difference]: Start difference. First operand 6318 states and 9478 transitions. Second operand 6 states. [2019-09-07 19:10:35,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:10:35,283 INFO L93 Difference]: Finished difference Result 16014 states and 24405 transitions. [2019-09-07 19:10:35,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 19:10:35,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2019-09-07 19:10:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:10:35,336 INFO L225 Difference]: With dead ends: 16014 [2019-09-07 19:10:35,337 INFO L226 Difference]: Without dead ends: 9702 [2019-09-07 19:10:35,356 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 19:10:35,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9702 states. [2019-09-07 19:10:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9702 to 9635. [2019-09-07 19:10:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9635 states. [2019-09-07 19:10:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9635 states to 9635 states and 13524 transitions. [2019-09-07 19:10:35,640 INFO L78 Accepts]: Start accepts. Automaton has 9635 states and 13524 transitions. Word has length 141 [2019-09-07 19:10:35,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:10:35,642 INFO L475 AbstractCegarLoop]: Abstraction has 9635 states and 13524 transitions. [2019-09-07 19:10:35,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 19:10:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9635 states and 13524 transitions. [2019-09-07 19:10:35,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-07 19:10:35,645 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:10:35,646 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:10:35,646 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:10:35,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:10:35,647 INFO L82 PathProgramCache]: Analyzing trace with hash -255786161, now seen corresponding path program 1 times [2019-09-07 19:10:35,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:10:35,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:10:35,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:35,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:10:35,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:10:35,834 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:10:35,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:10:35,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 19:10:35,835 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 19:10:35,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 19:10:35,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-07 19:10:35,837 INFO L87 Difference]: Start difference. First operand 9635 states and 13524 transitions. Second operand 5 states. [2019-09-07 19:10:42,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:10:42,453 INFO L93 Difference]: Finished difference Result 29229 states and 42471 transitions. [2019-09-07 19:10:42,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-07 19:10:42,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2019-09-07 19:10:42,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:10:42,521 INFO L225 Difference]: With dead ends: 29229 [2019-09-07 19:10:42,522 INFO L226 Difference]: Without dead ends: 19600 [2019-09-07 19:10:42,551 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 19:10:42,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19600 states. [2019-09-07 19:10:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19600 to 19451. [2019-09-07 19:10:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19451 states. [2019-09-07 19:10:43,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19451 states to 19451 states and 25885 transitions. [2019-09-07 19:10:43,161 INFO L78 Accepts]: Start accepts. Automaton has 19451 states and 25885 transitions. Word has length 170 [2019-09-07 19:10:43,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:10:43,162 INFO L475 AbstractCegarLoop]: Abstraction has 19451 states and 25885 transitions. [2019-09-07 19:10:43,162 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 19:10:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 19451 states and 25885 transitions. [2019-09-07 19:10:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-09-07 19:10:43,167 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:10:43,167 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:10:43,167 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:10:43,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:10:43,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1094523374, now seen corresponding path program 1 times [2019-09-07 19:10:43,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:10:43,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:10:43,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:43,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:10:43,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:10:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:10:43,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:10:43,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 19:10:43,484 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 19:10:43,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 19:10:43,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 19:10:43,485 INFO L87 Difference]: Start difference. First operand 19451 states and 25885 transitions. Second operand 6 states. [2019-09-07 19:10:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:10:50,470 INFO L93 Difference]: Finished difference Result 48173 states and 66200 transitions. [2019-09-07 19:10:50,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 19:10:50,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2019-09-07 19:10:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:10:50,709 INFO L225 Difference]: With dead ends: 48173 [2019-09-07 19:10:50,709 INFO L226 Difference]: Without dead ends: 28728 [2019-09-07 19:10:50,764 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 19:10:50,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28728 states. [2019-09-07 19:10:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28728 to 28554. [2019-09-07 19:10:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28554 states. [2019-09-07 19:10:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28554 states to 28554 states and 36967 transitions. [2019-09-07 19:10:51,387 INFO L78 Accepts]: Start accepts. Automaton has 28554 states and 36967 transitions. Word has length 221 [2019-09-07 19:10:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:10:51,388 INFO L475 AbstractCegarLoop]: Abstraction has 28554 states and 36967 transitions. [2019-09-07 19:10:51,388 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 19:10:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 28554 states and 36967 transitions. [2019-09-07 19:10:51,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-09-07 19:10:51,394 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:10:51,395 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:10:51,395 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:10:51,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:10:51,396 INFO L82 PathProgramCache]: Analyzing trace with hash 471924011, now seen corresponding path program 1 times [2019-09-07 19:10:51,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:10:51,397 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:10:51,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:51,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:10:51,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:10:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:10:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-09-07 19:10:51,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:10:51,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 19:10:51,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 19:10:51,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 19:10:51,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 19:10:51,566 INFO L87 Difference]: Start difference. First operand 28554 states and 36967 transitions. Second operand 4 states. [2019-09-07 19:10:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:10:58,370 INFO L93 Difference]: Finished difference Result 75889 states and 98886 transitions. [2019-09-07 19:10:58,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 19:10:58,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2019-09-07 19:10:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:10:58,514 INFO L225 Difference]: With dead ends: 75889 [2019-09-07 19:10:58,514 INFO L226 Difference]: Without dead ends: 42417 [2019-09-07 19:10:58,568 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 19:10:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42417 states. [2019-09-07 19:11:00,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42417 to 42350. [2019-09-07 19:11:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42350 states. [2019-09-07 19:11:00,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42350 states to 42350 states and 50813 transitions. [2019-09-07 19:11:00,533 INFO L78 Accepts]: Start accepts. Automaton has 42350 states and 50813 transitions. Word has length 238 [2019-09-07 19:11:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:11:00,534 INFO L475 AbstractCegarLoop]: Abstraction has 42350 states and 50813 transitions. [2019-09-07 19:11:00,534 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 19:11:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 42350 states and 50813 transitions. [2019-09-07 19:11:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2019-09-07 19:11:00,545 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:11:00,545 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 19:11:00,546 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:11:00,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:11:00,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1900376330, now seen corresponding path program 1 times [2019-09-07 19:11:00,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:11:00,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:11:00,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:00,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:11:00,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:11:00,940 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:11:00,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:11:00,940 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:11:00,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:11:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:11:01,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 19:11:01,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:11:01,342 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:11:01,358 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:11:01,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 19:11:01,361 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 19:11:01,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 19:11:01,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 19:11:01,362 INFO L87 Difference]: Start difference. First operand 42350 states and 50813 transitions. Second operand 9 states. [2019-09-07 19:11:12,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:11:12,844 INFO L93 Difference]: Finished difference Result 97904 states and 122120 transitions. [2019-09-07 19:11:12,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-07 19:11:12,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 355 [2019-09-07 19:11:12,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:11:13,204 INFO L225 Difference]: With dead ends: 97904 [2019-09-07 19:11:13,204 INFO L226 Difference]: Without dead ends: 56327 [2019-09-07 19:11:13,346 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2019-09-07 19:11:13,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56327 states. [2019-09-07 19:11:16,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56327 to 54598. [2019-09-07 19:11:16,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54598 states. [2019-09-07 19:11:16,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54598 states to 54598 states and 66387 transitions. [2019-09-07 19:11:16,435 INFO L78 Accepts]: Start accepts. Automaton has 54598 states and 66387 transitions. Word has length 355 [2019-09-07 19:11:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:11:16,438 INFO L475 AbstractCegarLoop]: Abstraction has 54598 states and 66387 transitions. [2019-09-07 19:11:16,438 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 19:11:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 54598 states and 66387 transitions. [2019-09-07 19:11:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2019-09-07 19:11:16,455 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:11:16,456 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:11:16,456 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:11:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:11:16,456 INFO L82 PathProgramCache]: Analyzing trace with hash 795057674, now seen corresponding path program 1 times [2019-09-07 19:11:16,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:11:16,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:11:16,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:16,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:11:16,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:11:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 259 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-09-07 19:11:16,859 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:11:16,860 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:11:16,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:11:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:11:16,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 19:11:16,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:11:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 259 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-09-07 19:11:17,185 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:11:17,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 19:11:17,186 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 19:11:17,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 19:11:17,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 19:11:17,187 INFO L87 Difference]: Start difference. First operand 54598 states and 66387 transitions. Second operand 9 states. [2019-09-07 19:11:29,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:11:29,444 INFO L93 Difference]: Finished difference Result 194146 states and 263908 transitions. [2019-09-07 19:11:29,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-07 19:11:29,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 397 [2019-09-07 19:11:29,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:11:30,127 INFO L225 Difference]: With dead ends: 194146 [2019-09-07 19:11:30,128 INFO L226 Difference]: Without dead ends: 140321 [2019-09-07 19:11:30,269 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-09-07 19:11:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140321 states. [2019-09-07 19:11:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140321 to 136012. [2019-09-07 19:11:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136012 states. [2019-09-07 19:11:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136012 states to 136012 states and 172871 transitions. [2019-09-07 19:11:33,685 INFO L78 Accepts]: Start accepts. Automaton has 136012 states and 172871 transitions. Word has length 397 [2019-09-07 19:11:33,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:11:33,686 INFO L475 AbstractCegarLoop]: Abstraction has 136012 states and 172871 transitions. [2019-09-07 19:11:33,686 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 19:11:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 136012 states and 172871 transitions. [2019-09-07 19:11:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2019-09-07 19:11:33,704 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:11:33,704 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:11:33,705 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:11:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:11:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1552596997, now seen corresponding path program 1 times [2019-09-07 19:11:33,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:11:33,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:11:33,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:33,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:11:33,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:11:33,952 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2019-09-07 19:11:33,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:11:33,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 19:11:33,953 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 19:11:33,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 19:11:33,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 19:11:33,954 INFO L87 Difference]: Start difference. First operand 136012 states and 172871 transitions. Second operand 3 states. [2019-09-07 19:11:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:11:41,009 INFO L93 Difference]: Finished difference Result 290541 states and 373377 transitions. [2019-09-07 19:11:41,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 19:11:41,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 408 [2019-09-07 19:11:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:11:41,541 INFO L225 Difference]: With dead ends: 290541 [2019-09-07 19:11:41,541 INFO L226 Difference]: Without dead ends: 155302 [2019-09-07 19:11:41,792 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 19:11:41,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155302 states. [2019-09-07 19:11:44,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155302 to 151435. [2019-09-07 19:11:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151435 states. [2019-09-07 19:11:44,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151435 states to 151435 states and 189607 transitions. [2019-09-07 19:11:44,752 INFO L78 Accepts]: Start accepts. Automaton has 151435 states and 189607 transitions. Word has length 408 [2019-09-07 19:11:44,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:11:44,752 INFO L475 AbstractCegarLoop]: Abstraction has 151435 states and 189607 transitions. [2019-09-07 19:11:44,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 19:11:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 151435 states and 189607 transitions. [2019-09-07 19:11:44,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2019-09-07 19:11:44,799 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:11:44,799 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 19:11:44,800 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:11:44,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:11:44,800 INFO L82 PathProgramCache]: Analyzing trace with hash 653339542, now seen corresponding path program 1 times [2019-09-07 19:11:44,800 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:11:44,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:11:44,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:44,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:11:44,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:11:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:11:47,900 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 136 proven. 178 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2019-09-07 19:11:47,901 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:11:47,901 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:11:47,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:11:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:11:48,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 19:11:48,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:11:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 522 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-09-07 19:11:48,220 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:11:48,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 19:11:48,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 19:11:48,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 19:11:48,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 19:11:48,222 INFO L87 Difference]: Start difference. First operand 151435 states and 189607 transitions. Second operand 9 states. [2019-09-07 19:11:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:11:59,907 INFO L93 Difference]: Finished difference Result 306815 states and 391351 transitions. [2019-09-07 19:11:59,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-07 19:11:59,907 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 533 [2019-09-07 19:11:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:12:00,299 INFO L225 Difference]: With dead ends: 306815 [2019-09-07 19:12:00,299 INFO L226 Difference]: Without dead ends: 156153 [2019-09-07 19:12:00,496 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2019-09-07 19:12:00,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156153 states. [2019-09-07 19:12:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156153 to 155356. [2019-09-07 19:12:02,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155356 states. [2019-09-07 19:12:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155356 states to 155356 states and 190939 transitions. [2019-09-07 19:12:03,217 INFO L78 Accepts]: Start accepts. Automaton has 155356 states and 190939 transitions. Word has length 533 [2019-09-07 19:12:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:12:03,218 INFO L475 AbstractCegarLoop]: Abstraction has 155356 states and 190939 transitions. [2019-09-07 19:12:03,218 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 19:12:03,218 INFO L276 IsEmpty]: Start isEmpty. Operand 155356 states and 190939 transitions. [2019-09-07 19:12:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2019-09-07 19:12:03,252 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:12:03,252 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 19:12:03,252 INFO L418 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:12:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:12:03,253 INFO L82 PathProgramCache]: Analyzing trace with hash 117470670, now seen corresponding path program 1 times [2019-09-07 19:12:03,253 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:12:03,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:12:03,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:12:03,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:12:03,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:12:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:12:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 459 proven. 6 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-09-07 19:12:03,667 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:12:03,667 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:12:03,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:12:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:12:03,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 19:12:03,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:12:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (5)] Exception during sending of exit command (exit): Stream closed [2019-09-07 19:12:06,816 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:12:06,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-09-07 19:12:06,819 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 19:12:06,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 19:12:06,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-07 19:12:06,820 INFO L87 Difference]: Start difference. First operand 155356 states and 190939 transitions. Second operand 6 states. [2019-09-07 19:12:16,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:12:16,214 INFO L93 Difference]: Finished difference Result 380801 states and 476031 transitions. [2019-09-07 19:12:16,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-07 19:12:16,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 537 [2019-09-07 19:12:16,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:12:16,766 INFO L225 Difference]: With dead ends: 380801 [2019-09-07 19:12:16,766 INFO L226 Difference]: Without dead ends: 226218 [2019-09-07 19:12:16,925 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-09-07 19:12:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226218 states. [2019-09-07 19:12:23,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226218 to 226103. [2019-09-07 19:12:23,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226103 states. [2019-09-07 19:12:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226103 states to 226103 states and 278211 transitions. [2019-09-07 19:12:24,007 INFO L78 Accepts]: Start accepts. Automaton has 226103 states and 278211 transitions. Word has length 537 [2019-09-07 19:12:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:12:24,007 INFO L475 AbstractCegarLoop]: Abstraction has 226103 states and 278211 transitions. [2019-09-07 19:12:24,008 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 19:12:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 226103 states and 278211 transitions. [2019-09-07 19:12:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2019-09-07 19:12:24,144 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:12:24,145 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:12:24,145 INFO L418 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:12:24,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:12:24,146 INFO L82 PathProgramCache]: Analyzing trace with hash -253449776, now seen corresponding path program 1 times [2019-09-07 19:12:24,146 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:12:24,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:12:24,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:12:24,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:12:24,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:12:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:12:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2019-09-07 19:12:24,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 19:12:24,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 19:12:24,709 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 19:12:24,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 19:12:24,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 19:12:24,709 INFO L87 Difference]: Start difference. First operand 226103 states and 278211 transitions. Second operand 4 states. [2019-09-07 19:12:33,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:12:33,103 INFO L93 Difference]: Finished difference Result 451433 states and 555851 transitions. [2019-09-07 19:12:33,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 19:12:33,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 817 [2019-09-07 19:12:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:12:33,672 INFO L225 Difference]: With dead ends: 451433 [2019-09-07 19:12:33,672 INFO L226 Difference]: Without dead ends: 226103 [2019-09-07 19:12:33,949 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 19:12:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226103 states. [2019-09-07 19:12:41,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226103 to 226055. [2019-09-07 19:12:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226055 states. [2019-09-07 19:12:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226055 states to 226055 states and 273860 transitions. [2019-09-07 19:12:41,731 INFO L78 Accepts]: Start accepts. Automaton has 226055 states and 273860 transitions. Word has length 817 [2019-09-07 19:12:41,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:12:41,732 INFO L475 AbstractCegarLoop]: Abstraction has 226055 states and 273860 transitions. [2019-09-07 19:12:41,732 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 19:12:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 226055 states and 273860 transitions. [2019-09-07 19:12:41,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2019-09-07 19:12:41,843 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:12:41,844 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:12:41,845 INFO L418 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:12:41,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:12:41,845 INFO L82 PathProgramCache]: Analyzing trace with hash -578542234, now seen corresponding path program 1 times [2019-09-07 19:12:41,845 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:12:41,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:12:41,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:12:41,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:12:41,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:12:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:12:43,972 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-07 19:12:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 389 proven. 194 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-07 19:12:48,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:12:48,809 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:12:48,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:12:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:12:49,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-07 19:12:49,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:12:49,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 19:12:49,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,161 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:12:49,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 19:12:49,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 19:12:49,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 19:12:53,485 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 522 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-09-07 19:12:53,488 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:12:53,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 8] total 32 [2019-09-07 19:12:53,490 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-07 19:12:53,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-07 19:12:53,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2019-09-07 19:12:53,491 INFO L87 Difference]: Start difference. First operand 226055 states and 273860 transitions. Second operand 32 states. [2019-09-07 19:12:55,200 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2019-09-07 19:12:55,509 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-09-07 19:12:59,205 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2019-09-07 19:13:03,131 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-07 19:13:03,701 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-07 19:13:03,910 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 19:13:04,159 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-07 19:13:04,540 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-07 19:13:04,794 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2019-09-07 19:13:05,937 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2019-09-07 19:13:07,292 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-07 19:13:08,777 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2019-09-07 19:13:09,807 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-07 19:13:11,607 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-07 19:13:12,316 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-07 19:13:12,735 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2019-09-07 19:13:15,240 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-07 19:13:17,234 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-07 19:13:17,443 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-07 19:13:18,591 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-07 19:13:19,031 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-07 19:13:19,680 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-07 19:13:19,905 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-07 19:13:20,324 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 19:13:21,688 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-07 19:13:25,137 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-07 19:13:26,102 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-07 19:13:27,979 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-07 19:13:28,790 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-07 19:13:28,984 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-07 19:13:29,650 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 19:13:30,007 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-07 19:13:30,590 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-07 19:13:30,976 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-07 19:13:31,624 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2019-09-07 19:13:32,355 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-07 19:13:33,015 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2019-09-07 19:13:33,500 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-07 19:13:35,241 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-07 19:13:35,445 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-07 19:13:35,668 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-07 19:13:37,095 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2019-09-07 19:13:37,794 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-07 19:13:38,700 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2019-09-07 19:13:39,350 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-07 19:13:39,667 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-07 19:13:40,514 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-07 19:13:40,948 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 19:13:41,925 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-07 19:13:44,022 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2019-09-07 19:13:44,921 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-07 19:13:45,862 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-07 19:13:46,098 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-07 19:13:46,347 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-07 19:13:46,586 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-07 19:13:47,604 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-07 19:13:49,700 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-07 19:13:50,414 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2019-09-07 19:13:50,737 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-07 19:13:51,245 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-07 19:13:51,587 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2019-09-07 19:13:52,266 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-07 19:13:52,550 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2019-09-07 19:13:52,908 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-07 19:13:53,916 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-07 19:13:54,293 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-07 19:13:55,270 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-07 19:13:57,022 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-07 19:13:57,267 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-07 19:13:57,578 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-07 19:13:57,892 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2019-09-07 19:13:58,262 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-07 19:13:59,194 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2019-09-07 19:13:59,744 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-07 19:14:00,013 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2019-09-07 19:14:00,633 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2019-09-07 19:14:01,472 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-09-07 19:14:01,660 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-07 19:14:02,433 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-07 19:14:02,954 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-07 19:14:03,470 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-07 19:14:04,033 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-07 19:14:04,751 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-07 19:14:05,287 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-07 19:14:05,942 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-07 19:14:06,717 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-07 19:14:07,528 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-07 19:14:08,700 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-07 19:14:10,015 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2019-09-07 19:14:10,298 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-07 19:14:12,629 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-07 19:14:13,687 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-07 19:14:14,279 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-07 19:14:15,111 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 19:14:15,768 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2019-09-07 19:14:17,908 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-07 19:14:18,171 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-07 19:14:19,042 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2019-09-07 19:14:19,378 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-07 19:14:19,899 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2019-09-07 19:14:20,877 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-07 19:14:21,275 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-07 19:14:21,526 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-07 19:14:21,950 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-07 19:14:22,262 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-07 19:14:23,685 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-07 19:14:24,435 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-07 19:14:24,755 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-07 19:14:25,116 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 19:14:25,339 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-07 19:14:25,722 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-07 19:14:27,353 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-07 19:14:28,276 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-07 19:14:28,467 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-07 19:14:29,536 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-09-07 19:14:29,747 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2019-09-07 19:14:29,968 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2019-09-07 19:14:30,642 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2019-09-07 19:14:31,235 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-07 19:14:32,102 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-07 19:14:32,279 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2019-09-07 19:14:32,476 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2019-09-07 19:14:33,180 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-09-07 19:14:33,615 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-07 19:14:34,056 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-07 19:14:34,243 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-07 19:14:34,434 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-07 19:14:35,031 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2019-09-07 19:14:35,425 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-07 19:14:36,044 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-07 19:14:36,353 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-07 19:14:37,631 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-07 19:14:37,852 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-07 19:14:38,334 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-07 19:14:39,527 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-09-07 19:14:39,791 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-07 19:14:40,341 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-07 19:14:40,841 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-07 19:14:41,044 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-07 19:14:41,429 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2019-09-07 19:14:41,795 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2019-09-07 19:14:42,352 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-09-07 19:14:43,246 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-07 19:14:43,547 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-07 19:14:44,391 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-07 19:14:45,089 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-07 19:14:45,403 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-07 19:14:46,264 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-07 19:14:46,467 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2019-09-07 19:14:46,868 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-07 19:14:47,285 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 19:14:47,726 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-07 19:14:48,586 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-07 19:14:49,022 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2019-09-07 19:14:49,741 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2019-09-07 19:14:49,962 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-07 19:14:50,502 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2019-09-07 19:14:51,409 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2019-09-07 19:14:52,171 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-07 19:14:53,181 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-07 19:14:53,647 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-09-07 19:14:54,513 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-07 19:14:54,761 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-07 19:14:54,965 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-07 19:14:56,902 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-07 19:14:57,122 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-07 19:14:57,409 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2019-09-07 19:14:57,746 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-07 19:14:57,988 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-07 19:14:58,318 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-09-07 19:14:58,513 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-07 19:14:58,695 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-07 19:14:58,901 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-07 19:14:59,389 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-07 19:14:59,628 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2019-09-07 19:15:00,114 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-07 19:15:00,486 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-07 19:15:00,866 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-07 19:15:01,309 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-07 19:15:01,569 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-07 19:15:01,916 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-07 19:15:02,812 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-07 19:15:03,237 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-07 19:15:04,615 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-07 19:15:05,274 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-07 19:15:06,089 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-07 19:15:06,868 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2019-09-07 19:15:07,117 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2019-09-07 19:15:07,916 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2019-09-07 19:15:08,622 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2019-09-07 19:15:10,130 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-07 19:15:10,397 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-07 19:15:10,778 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-07 19:15:11,398 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-07 19:15:11,830 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-07 19:15:12,965 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2019-09-07 19:15:13,198 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2019-09-07 19:15:13,369 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2019-09-07 19:15:13,586 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-07 19:15:13,758 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2019-09-07 19:15:13,950 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2019-09-07 19:15:14,258 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2019-09-07 19:15:14,621 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-07 19:15:14,851 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-07 19:15:16,024 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2019-09-07 19:15:16,565 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-07 19:15:17,874 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-07 19:15:18,059 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-07 19:15:19,322 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-07 19:15:19,602 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-07 19:15:19,857 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-07 19:15:20,055 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-07 19:15:20,434 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-07 19:15:21,095 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-07 19:15:21,749 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-07 19:15:21,995 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-07 19:15:22,364 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-07 19:15:22,574 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-07 19:15:22,964 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-07 19:15:23,167 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-07 19:15:23,629 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 42 [2019-09-07 19:15:23,929 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-07 19:15:24,375 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-07 19:15:24,590 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2019-09-07 19:15:24,906 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2019-09-07 19:15:25,120 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-07 19:15:25,502 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-07 19:15:25,804 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-07 19:15:25,990 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2019-09-07 19:15:26,154 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2019-09-07 19:15:26,674 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-07 19:15:27,850 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-07 19:15:29,045 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-07 19:15:29,414 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-07 19:15:29,802 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-07 19:15:30,155 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2019-09-07 19:15:30,819 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-07 19:15:31,039 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-07 19:15:32,065 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2019-09-07 19:15:32,256 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-07 19:15:32,672 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 32 [2019-09-07 19:15:33,448 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2019-09-07 19:15:35,108 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-07 19:15:35,750 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 19:15:36,260 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2019-09-07 19:15:36,509 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2019-09-07 19:15:36,813 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2019-09-07 19:15:37,346 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2019-09-07 19:15:37,792 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2019-09-07 19:15:38,798 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 19:15:39,406 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-09-07 19:15:39,888 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-07 19:15:40,098 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-09-07 19:15:40,285 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-07 19:15:40,852 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-07 19:15:41,939 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-07 19:15:42,719 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-07 19:15:43,314 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2019-09-07 19:15:44,391 WARN L188 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-07 19:15:44,714 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2019-09-07 19:15:45,162 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2019-09-07 19:15:45,786 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2019-09-07 19:15:46,999 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-07 19:15:47,241 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-07 19:15:47,477 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2019-09-07 19:15:49,733 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-07 19:15:49,896 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-07 19:15:50,328 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-07 19:15:50,529 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-07 19:15:50,836 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-07 19:15:51,567 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2019-09-07 19:15:52,641 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-07 19:15:53,317 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-07 19:15:54,361 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2019-09-07 19:15:54,806 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2019-09-07 19:15:59,923 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-07 19:16:00,080 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2019-09-07 19:16:00,565 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-07 19:16:01,723 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-07 19:16:02,014 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-07 19:16:03,910 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-07 19:16:04,779 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-07 19:16:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:16:19,722 INFO L93 Difference]: Finished difference Result 573925 states and 739259 transitions. [2019-09-07 19:16:19,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 825 states. [2019-09-07 19:16:19,722 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 953 [2019-09-07 19:16:19,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:16:21,584 INFO L225 Difference]: With dead ends: 573925 [2019-09-07 19:16:21,584 INFO L226 Difference]: Without dead ends: 348643 [2019-09-07 19:16:21,876 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2195 GetRequests, 1341 SyntacticMatches, 4 SemanticMatches, 850 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348576 ImplicationChecksByTransitivity, 99.8s TimeCoverageRelationStatistics Valid=55281, Invalid=669771, Unknown=0, NotChecked=0, Total=725052 [2019-09-07 19:16:22,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348643 states. [2019-09-07 19:16:28,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348643 to 335576. [2019-09-07 19:16:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335576 states. [2019-09-07 19:16:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335576 states to 335576 states and 399447 transitions. [2019-09-07 19:16:30,330 INFO L78 Accepts]: Start accepts. Automaton has 335576 states and 399447 transitions. Word has length 953 [2019-09-07 19:16:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:16:30,331 INFO L475 AbstractCegarLoop]: Abstraction has 335576 states and 399447 transitions. [2019-09-07 19:16:30,331 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-07 19:16:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 335576 states and 399447 transitions. [2019-09-07 19:16:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2019-09-07 19:16:30,478 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:16:30,479 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:16:30,479 INFO L418 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:16:30,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:16:30,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1261773659, now seen corresponding path program 1 times [2019-09-07 19:16:30,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:16:30,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:16:30,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:16:30,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:16:30,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:16:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:16:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 180 proven. 204 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-09-07 19:16:32,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:16:32,720 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:16:32,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:16:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:16:32,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 19:16:33,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:16:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-07 19:16:38,331 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:16:38,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 19:16:38,334 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 19:16:38,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 19:16:38,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 19:16:38,334 INFO L87 Difference]: Start difference. First operand 335576 states and 399447 transitions. Second operand 9 states. [2019-09-07 19:16:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:16:50,369 INFO L93 Difference]: Finished difference Result 670647 states and 799344 transitions. [2019-09-07 19:16:50,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-07 19:16:50,369 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 962 [2019-09-07 19:16:50,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:16:51,945 INFO L225 Difference]: With dead ends: 670647 [2019-09-07 19:16:51,945 INFO L226 Difference]: Without dead ends: 335844 [2019-09-07 19:16:52,269 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-09-07 19:16:52,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335844 states. [2019-09-07 19:16:58,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335844 to 332488. [2019-09-07 19:16:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332488 states. [2019-09-07 19:16:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332488 states to 332488 states and 379475 transitions. [2019-09-07 19:16:59,021 INFO L78 Accepts]: Start accepts. Automaton has 332488 states and 379475 transitions. Word has length 962 [2019-09-07 19:16:59,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:16:59,022 INFO L475 AbstractCegarLoop]: Abstraction has 332488 states and 379475 transitions. [2019-09-07 19:16:59,022 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 19:16:59,022 INFO L276 IsEmpty]: Start isEmpty. Operand 332488 states and 379475 transitions. [2019-09-07 19:16:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2019-09-07 19:16:59,152 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:16:59,152 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:16:59,153 INFO L418 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:16:59,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:16:59,153 INFO L82 PathProgramCache]: Analyzing trace with hash 514120478, now seen corresponding path program 1 times [2019-09-07 19:16:59,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:16:59,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:16:59,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:16:59,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:16:59,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:16:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:17:08,754 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 547 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 19:17:08,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:17:08,754 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:17:08,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:17:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:17:09,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-07 19:17:09,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:17:09,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 19:17:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2019-09-07 19:17:10,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 19:17:10,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 26 [2019-09-07 19:17:10,087 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-07 19:17:10,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-07 19:17:10,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2019-09-07 19:17:10,088 INFO L87 Difference]: Start difference. First operand 332488 states and 379475 transitions. Second operand 26 states. [2019-09-07 19:17:13,934 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-07 19:17:21,469 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-07 19:17:24,169 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-07 19:17:24,830 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2019-09-07 19:17:27,375 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-07 19:17:28,951 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-07 19:17:31,256 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-07 19:17:31,923 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-07 19:17:32,194 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-07 19:17:33,263 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-07 19:17:33,545 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-07 19:17:35,809 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-07 19:17:37,170 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-07 19:17:38,360 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-07 19:17:40,838 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-07 19:17:46,085 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-07 19:17:46,404 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-07 19:17:47,679 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-07 19:17:48,339 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 19:17:52,257 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-07 19:17:53,210 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 19:17:55,128 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-07 19:17:55,405 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-07 19:17:56,489 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-07 19:17:56,832 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-07 19:17:59,211 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-07 19:18:00,085 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-07 19:18:02,840 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2019-09-07 19:18:03,363 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-07 19:18:04,274 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-07 19:18:05,282 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-07 19:18:06,489 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-07 19:18:06,731 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-07 19:18:07,037 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-07 19:18:10,032 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-07 19:18:10,643 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 19:18:10,785 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2019-09-07 19:18:11,479 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-07 19:18:11,884 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-07 19:18:12,199 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-07 19:18:13,017 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-07 19:18:14,223 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 19:18:14,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:18:14,969 INFO L93 Difference]: Finished difference Result 678520 states and 763922 transitions. [2019-09-07 19:18:14,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2019-09-07 19:18:14,969 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 995 [2019-09-07 19:18:14,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:18:15,649 INFO L225 Difference]: With dead ends: 678520 [2019-09-07 19:18:15,649 INFO L226 Difference]: Without dead ends: 346805 [2019-09-07 19:18:15,894 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1229 GetRequests, 1001 SyntacticMatches, 3 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20705 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=5003, Invalid=46299, Unknown=0, NotChecked=0, Total=51302 [2019-09-07 19:18:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346805 states. [2019-09-07 19:18:21,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346805 to 339611. [2019-09-07 19:18:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339611 states. [2019-09-07 19:18:21,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339611 states to 339611 states and 373554 transitions. [2019-09-07 19:18:21,679 INFO L78 Accepts]: Start accepts. Automaton has 339611 states and 373554 transitions. Word has length 995 [2019-09-07 19:18:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:18:21,679 INFO L475 AbstractCegarLoop]: Abstraction has 339611 states and 373554 transitions. [2019-09-07 19:18:21,679 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-07 19:18:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 339611 states and 373554 transitions. [2019-09-07 19:18:21,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1011 [2019-09-07 19:18:21,745 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:18:21,746 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:18:21,746 INFO L418 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:18:21,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:18:21,747 INFO L82 PathProgramCache]: Analyzing trace with hash 651531227, now seen corresponding path program 1 times [2019-09-07 19:18:21,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:18:21,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:18:21,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:18:21,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:18:21,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:18:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:18:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 151 proven. 398 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-09-07 19:18:29,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:18:29,059 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:18:29,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:18:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:18:29,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 19:18:29,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:18:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 678 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-09-07 19:18:29,699 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:18:29,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-09-07 19:18:29,702 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-07 19:18:29,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-07 19:18:29,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-07 19:18:29,702 INFO L87 Difference]: Start difference. First operand 339611 states and 373554 transitions. Second operand 11 states. [2019-09-07 19:18:46,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:18:46,048 INFO L93 Difference]: Finished difference Result 684266 states and 752419 transitions. [2019-09-07 19:18:46,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-07 19:18:46,048 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1010 [2019-09-07 19:18:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:18:46,815 INFO L225 Difference]: With dead ends: 684266 [2019-09-07 19:18:46,815 INFO L226 Difference]: Without dead ends: 341563 [2019-09-07 19:18:46,996 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 1019 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2019-09-07 19:18:47,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341563 states. [2019-09-07 19:18:54,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341563 to 332258. [2019-09-07 19:18:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332258 states. [2019-09-07 19:18:55,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332258 states to 332258 states and 358468 transitions. [2019-09-07 19:18:55,630 INFO L78 Accepts]: Start accepts. Automaton has 332258 states and 358468 transitions. Word has length 1010 [2019-09-07 19:18:55,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:18:55,630 INFO L475 AbstractCegarLoop]: Abstraction has 332258 states and 358468 transitions. [2019-09-07 19:18:55,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-07 19:18:55,630 INFO L276 IsEmpty]: Start isEmpty. Operand 332258 states and 358468 transitions. [2019-09-07 19:18:55,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1119 [2019-09-07 19:18:55,706 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:18:55,707 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:18:55,707 INFO L418 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:18:55,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:18:55,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1824844727, now seen corresponding path program 1 times [2019-09-07 19:18:55,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:18:55,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:18:55,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:18:55,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:18:55,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:18:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:19:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 406 proven. 622 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-09-07 19:19:01,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:19:01,060 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:19:01,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:19:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:19:01,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 19:19:01,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:19:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 895 proven. 2 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2019-09-07 19:19:01,893 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:19:01,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5] total 17 [2019-09-07 19:19:01,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-07 19:19:01,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-07 19:19:01,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2019-09-07 19:19:01,895 INFO L87 Difference]: Start difference. First operand 332258 states and 358468 transitions. Second operand 17 states. [2019-09-07 19:19:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:19:31,161 INFO L93 Difference]: Finished difference Result 656401 states and 711865 transitions. [2019-09-07 19:19:31,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2019-09-07 19:19:31,161 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1118 [2019-09-07 19:19:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:19:31,857 INFO L225 Difference]: With dead ends: 656401 [2019-09-07 19:19:31,857 INFO L226 Difference]: Without dead ends: 324916 [2019-09-07 19:19:32,108 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1298 GetRequests, 1195 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4035 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1961, Invalid=8959, Unknown=0, NotChecked=0, Total=10920 [2019-09-07 19:19:33,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324916 states. [2019-09-07 19:19:36,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324916 to 306785. [2019-09-07 19:19:36,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306785 states. [2019-09-07 19:19:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306785 states to 306785 states and 322656 transitions. [2019-09-07 19:19:38,177 INFO L78 Accepts]: Start accepts. Automaton has 306785 states and 322656 transitions. Word has length 1118 [2019-09-07 19:19:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:19:38,177 INFO L475 AbstractCegarLoop]: Abstraction has 306785 states and 322656 transitions. [2019-09-07 19:19:38,177 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-07 19:19:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 306785 states and 322656 transitions. [2019-09-07 19:19:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1194 [2019-09-07 19:19:38,266 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:19:38,267 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:19:38,267 INFO L418 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:19:38,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:19:38,267 INFO L82 PathProgramCache]: Analyzing trace with hash 505247855, now seen corresponding path program 1 times [2019-09-07 19:19:38,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:19:38,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:19:38,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:19:38,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:19:38,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:19:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:19:39,446 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-09-07 19:19:39,677 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-07 19:19:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 54 proven. 825 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2019-09-07 19:19:50,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 19:19:50,160 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 19:19:50,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:19:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 19:19:50,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 1571 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-07 19:19:50,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 19:19:50,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:50,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:50,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:50,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:50,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:50,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:50,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:50,955 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 23 [2019-09-07 19:19:51,004 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 19:19:51,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 19:19:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 864 proven. 2 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2019-09-07 19:19:51,925 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 19:19:51,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 5] total 23 [2019-09-07 19:19:51,927 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-07 19:19:51,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-07 19:19:51,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-09-07 19:19:51,928 INFO L87 Difference]: Start difference. First operand 306785 states and 322656 transitions. Second operand 23 states. [2019-09-07 19:19:55,761 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-07 19:19:56,514 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-07 19:19:58,781 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-07 19:19:59,496 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-07 19:19:59,952 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-07 19:20:01,189 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-07 19:20:01,644 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-07 19:20:04,878 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-07 19:20:05,188 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 19:20:05,746 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-07 19:20:06,257 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-07 19:20:06,753 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-07 19:20:08,112 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-07 19:20:08,383 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-07 19:20:08,771 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-09-07 19:20:08,988 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-07 19:20:10,349 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-07 19:20:10,658 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2019-09-07 19:20:11,270 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-07 19:20:12,286 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 19:20:12,514 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-07 19:20:12,758 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-07 19:20:13,485 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2019-09-07 19:20:13,851 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-07 19:20:14,018 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-07 19:20:14,408 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-07 19:20:15,077 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-07 19:20:16,177 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-07 19:20:16,739 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2019-09-07 19:20:17,299 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 36 [2019-09-07 19:20:17,599 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2019-09-07 19:20:17,977 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-07 19:20:18,143 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-07 19:20:18,354 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-07 19:20:18,592 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-07 19:20:19,256 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-07 19:20:19,899 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2019-09-07 19:20:21,169 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-07 19:20:21,656 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2019-09-07 19:20:21,989 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-07 19:20:22,620 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-07 19:20:23,490 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-07 19:20:23,763 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2019-09-07 19:20:23,980 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-07 19:20:24,277 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-07 19:20:24,694 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-07 19:20:24,879 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2019-09-07 19:20:25,159 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-07 19:20:25,700 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-07 19:20:27,208 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2019-09-07 19:20:28,558 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-07 19:20:29,990 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-07 19:20:30,406 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2019-09-07 19:20:30,791 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 19:20:31,045 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-07 19:20:31,303 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-07 19:20:32,099 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-07 19:20:32,916 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-07 19:20:33,246 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-07 19:20:35,912 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-07 19:20:36,446 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2019-09-07 19:20:36,863 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2019-09-07 19:20:37,567 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-07 19:20:37,875 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-07 19:20:38,389 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2019-09-07 19:20:38,632 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-07 19:20:38,848 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2019-09-07 19:20:39,124 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-07 19:20:40,090 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2019-09-07 19:20:40,381 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-07 19:20:43,801 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 19:20:44,570 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-07 19:20:44,811 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-07 19:20:44,957 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-07 19:20:45,506 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-07 19:20:46,628 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-07 19:20:46,860 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-07 19:20:47,401 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-07 19:20:47,692 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-07 19:20:47,918 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-07 19:20:48,412 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-07 19:20:50,276 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-07 19:20:53,396 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-07 19:20:53,830 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-07 19:20:54,034 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2019-09-07 19:20:55,664 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-07 19:20:55,964 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-07 19:20:56,130 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2019-09-07 19:20:56,328 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-07 19:20:57,338 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-07 19:20:57,748 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-07 19:20:58,739 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-07 19:20:59,079 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-07 19:20:59,308 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-07 19:20:59,470 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2019-09-07 19:20:59,713 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2019-09-07 19:20:59,911 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-07 19:21:00,936 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2019-09-07 19:21:01,598 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2019-09-07 19:21:01,906 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-07 19:21:06,627 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-07 19:21:06,790 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-07 19:21:06,951 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-07 19:21:08,121 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2019-09-07 19:21:08,311 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2019-09-07 19:21:12,432 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-07 19:21:15,130 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2019-09-07 19:21:15,769 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-07 19:21:16,376 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-07 19:21:16,755 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2019-09-07 19:21:16,932 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2019-09-07 19:21:17,238 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-07 19:21:17,536 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2019-09-07 19:21:17,932 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-07 19:21:21,222 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-07 19:21:21,851 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2019-09-07 19:21:22,476 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-07 19:21:22,864 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-07 19:21:23,560 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2019-09-07 19:21:24,360 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-07 19:21:24,768 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-07 19:21:25,981 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-07 19:21:26,138 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-07 19:21:27,001 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-09-07 19:21:28,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 19:21:28,138 INFO L93 Difference]: Finished difference Result 623088 states and 657442 transitions. [2019-09-07 19:21:28,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2019-09-07 19:21:28,139 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1193 [2019-09-07 19:21:28,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 19:21:28,749 INFO L225 Difference]: With dead ends: 623088 [2019-09-07 19:21:28,750 INFO L226 Difference]: Without dead ends: 315440 [2019-09-07 19:21:28,912 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1740 GetRequests, 1390 SyntacticMatches, 3 SemanticMatches, 347 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54239 ImplicationChecksByTransitivity, 38.5s TimeCoverageRelationStatistics Valid=11279, Invalid=110173, Unknown=0, NotChecked=0, Total=121452 [2019-09-07 19:21:29,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315440 states. [2019-09-07 19:21:33,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315440 to 308406. [2019-09-07 19:21:33,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308406 states. [2019-09-07 19:21:33,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308406 states to 308406 states and 323314 transitions. [2019-09-07 19:21:33,507 INFO L78 Accepts]: Start accepts. Automaton has 308406 states and 323314 transitions. Word has length 1193 [2019-09-07 19:21:33,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 19:21:33,508 INFO L475 AbstractCegarLoop]: Abstraction has 308406 states and 323314 transitions. [2019-09-07 19:21:33,508 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-07 19:21:33,508 INFO L276 IsEmpty]: Start isEmpty. Operand 308406 states and 323314 transitions. [2019-09-07 19:21:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2019-09-07 19:21:33,597 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 19:21:33,598 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 19:21:33,598 INFO L418 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 19:21:33,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 19:21:33,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1821374119, now seen corresponding path program 1 times [2019-09-07 19:21:33,599 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 19:21:33,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 19:21:33,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:21:33,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 19:21:33,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 19:21:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat