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/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 21:57:47,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 21:57:47,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 21:57:47,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 21:57:47,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 21:57:47,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 21:57:47,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 21:57:47,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 21:57:47,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 21:57:47,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 21:57:47,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 21:57:47,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 21:57:47,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 21:57:47,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 21:57:47,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 21:57:47,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 21:57:47,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 21:57:47,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 21:57:47,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 21:57:47,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 21:57:47,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 21:57:47,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 21:57:47,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 21:57:47,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 21:57:47,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 21:57:47,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 21:57:47,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 21:57:47,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 21:57:47,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 21:57:47,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 21:57:47,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 21:57:47,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 21:57:47,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 21:57:47,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 21:57:47,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 21:57:47,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 21:57:47,110 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 [2019-10-14 21:57:47,139 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 21:57:47,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 21:57:47,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 21:57:47,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 21:57:47,141 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 21:57:47,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 21:57:47,141 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 21:57:47,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 21:57:47,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 21:57:47,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 21:57:47,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 21:57:47,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 21:57:47,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 21:57:47,144 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 21:57:47,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 21:57:47,145 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 21:57:47,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 21:57:47,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 21:57:47,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 21:57:47,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 21:57:47,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 21:57:47,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 21:57:47,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 21:57:47,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 21:57:47,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 21:57:47,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 21:57:47,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 21:57:47,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 21:57:47,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 21:57:47,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 21:57:47,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 21:57:47,437 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 21:57:47,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 21:57:47,439 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 21:57:47,440 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2019-10-14 21:57:47,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df64f893/07d71d460a21487ca19cb05c2f9796d4/FLAG31e31d090 [2019-10-14 21:57:48,123 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 21:57:48,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2019-10-14 21:57:48,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df64f893/07d71d460a21487ca19cb05c2f9796d4/FLAG31e31d090 [2019-10-14 21:57:48,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df64f893/07d71d460a21487ca19cb05c2f9796d4 [2019-10-14 21:57:48,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 21:57:48,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 21:57:48,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 21:57:48,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 21:57:48,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 21:57:48,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:57:48" (1/1) ... [2019-10-14 21:57:48,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f916025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:48, skipping insertion in model container [2019-10-14 21:57:48,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:57:48" (1/1) ... [2019-10-14 21:57:48,446 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 21:57:48,509 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 21:57:49,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 21:57:49,085 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 21:57:49,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 21:57:49,213 INFO L192 MainTranslator]: Completed translation [2019-10-14 21:57:49,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49 WrapperNode [2019-10-14 21:57:49,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 21:57:49,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 21:57:49,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 21:57:49,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 21:57:49,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2019-10-14 21:57:49,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2019-10-14 21:57:49,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2019-10-14 21:57:49,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2019-10-14 21:57:49,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2019-10-14 21:57:49,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2019-10-14 21:57:49,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2019-10-14 21:57:49,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 21:57:49,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 21:57:49,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 21:57:49,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 21:57:49,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (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 [2019-10-14 21:57:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 21:57:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 21:57:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-14 21:57:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 21:57:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-14 21:57:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 21:57:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 21:57:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 21:57:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 21:57:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 21:57:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 21:57:50,773 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 21:57:50,776 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 21:57:50,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:57:50 BoogieIcfgContainer [2019-10-14 21:57:50,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 21:57:50,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 21:57:50,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 21:57:50,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 21:57:50,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:57:48" (1/3) ... [2019-10-14 21:57:50,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345fbae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:57:50, skipping insertion in model container [2019-10-14 21:57:50,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (2/3) ... [2019-10-14 21:57:50,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345fbae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:57:50, skipping insertion in model container [2019-10-14 21:57:50,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:57:50" (3/3) ... [2019-10-14 21:57:50,798 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2019-10-14 21:57:50,813 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 21:57:50,823 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 21:57:50,836 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 21:57:50,875 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 21:57:50,875 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 21:57:50,877 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 21:57:50,877 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 21:57:50,877 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 21:57:50,878 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 21:57:50,878 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 21:57:50,878 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 21:57:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2019-10-14 21:57:50,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-14 21:57:50,917 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:57:50,918 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:57:50,920 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:57:50,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:57:50,926 INFO L82 PathProgramCache]: Analyzing trace with hash 312365279, now seen corresponding path program 1 times [2019-10-14 21:57:50,934 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:57:50,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892874454] [2019-10-14 21:57:50,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:57:50,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:57:50,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:57:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:57:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:57:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:57:51,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892874454] [2019-10-14 21:57:51,330 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:57:51,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 21:57:51,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849800284] [2019-10-14 21:57:51,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 21:57:51,335 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:57:51,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 21:57:51,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 21:57:51,351 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2019-10-14 21:57:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:57:53,384 INFO L93 Difference]: Finished difference Result 730 states and 1300 transitions. [2019-10-14 21:57:53,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 21:57:53,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-10-14 21:57:53,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:57:53,403 INFO L225 Difference]: With dead ends: 730 [2019-10-14 21:57:53,404 INFO L226 Difference]: Without dead ends: 447 [2019-10-14 21:57:53,413 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 21:57:53,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-14 21:57:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2019-10-14 21:57:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-10-14 21:57:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 595 transitions. [2019-10-14 21:57:53,497 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 595 transitions. Word has length 44 [2019-10-14 21:57:53,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:57:53,497 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 595 transitions. [2019-10-14 21:57:53,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 21:57:53,498 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 595 transitions. [2019-10-14 21:57:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-14 21:57:53,504 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:57:53,505 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:57:53,505 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:57:53,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:57:53,506 INFO L82 PathProgramCache]: Analyzing trace with hash -681057027, now seen corresponding path program 1 times [2019-10-14 21:57:53,506 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:57:53,506 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343852921] [2019-10-14 21:57:53,506 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:57:53,507 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:57:53,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:57:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:57:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:57:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:57:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:57:53,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343852921] [2019-10-14 21:57:53,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701623586] [2019-10-14 21:57:53,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:57:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:57:54,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-14 21:57:54,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 21:57:54,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 21:57:54,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 21:57:56,220 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 25 [2019-10-14 21:57:56,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 21:57:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:57:56,414 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 21:57:56,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2019-10-14 21:57:56,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174103131] [2019-10-14 21:57:56,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 21:57:56,417 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:57:56,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 21:57:56,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-10-14 21:57:56,418 INFO L87 Difference]: Start difference. First operand 443 states and 595 transitions. Second operand 13 states. [2019-10-14 21:58:06,946 WARN L191 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-10-14 21:58:10,657 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2019-10-14 21:58:16,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:58:16,408 INFO L93 Difference]: Finished difference Result 1850 states and 2642 transitions. [2019-10-14 21:58:16,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-14 21:58:16,409 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 123 [2019-10-14 21:58:16,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:58:16,422 INFO L225 Difference]: With dead ends: 1850 [2019-10-14 21:58:16,422 INFO L226 Difference]: Without dead ends: 1363 [2019-10-14 21:58:16,426 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2019-10-14 21:58:16,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2019-10-14 21:58:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1184. [2019-10-14 21:58:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2019-10-14 21:58:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1589 transitions. [2019-10-14 21:58:16,531 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1589 transitions. Word has length 123 [2019-10-14 21:58:16,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:58:16,533 INFO L462 AbstractCegarLoop]: Abstraction has 1184 states and 1589 transitions. [2019-10-14 21:58:16,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 21:58:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1589 transitions. [2019-10-14 21:58:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-14 21:58:16,552 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:58:16,552 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:58:16,753 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:16,753 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:58:16,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:58:16,754 INFO L82 PathProgramCache]: Analyzing trace with hash 844100826, now seen corresponding path program 1 times [2019-10-14 21:58:16,754 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:58:16,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932432441] [2019-10-14 21:58:16,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:16,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:16,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:58:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:58:17,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932432441] [2019-10-14 21:58:17,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:58:17,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 21:58:17,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492302665] [2019-10-14 21:58:17,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 21:58:17,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:58:17,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 21:58:17,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-14 21:58:17,225 INFO L87 Difference]: Start difference. First operand 1184 states and 1589 transitions. Second operand 9 states. [2019-10-14 21:58:20,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:58:20,470 INFO L93 Difference]: Finished difference Result 3016 states and 4344 transitions. [2019-10-14 21:58:20,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 21:58:20,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2019-10-14 21:58:20,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:58:20,486 INFO L225 Difference]: With dead ends: 3016 [2019-10-14 21:58:20,487 INFO L226 Difference]: Without dead ends: 1838 [2019-10-14 21:58:20,490 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-10-14 21:58:20,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2019-10-14 21:58:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1786. [2019-10-14 21:58:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2019-10-14 21:58:20,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2371 transitions. [2019-10-14 21:58:20,589 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2371 transitions. Word has length 166 [2019-10-14 21:58:20,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:58:20,590 INFO L462 AbstractCegarLoop]: Abstraction has 1786 states and 2371 transitions. [2019-10-14 21:58:20,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 21:58:20,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2371 transitions. [2019-10-14 21:58:20,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-14 21:58:20,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:58:20,595 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:58:20,596 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:58:20,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:58:20,596 INFO L82 PathProgramCache]: Analyzing trace with hash -657040215, now seen corresponding path program 1 times [2019-10-14 21:58:20,596 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:58:20,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461489321] [2019-10-14 21:58:20,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:20,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:20,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:58:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 21:58:20,861 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461489321] [2019-10-14 21:58:20,861 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514578137] [2019-10-14 21:58:20,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:20,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 21:58:20,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 21:58:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:58:21,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 21:58:21,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2019-10-14 21:58:21,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730570678] [2019-10-14 21:58:21,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 21:58:21,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:58:21,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 21:58:21,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 21:58:21,010 INFO L87 Difference]: Start difference. First operand 1786 states and 2371 transitions. Second operand 3 states. [2019-10-14 21:58:21,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:58:21,600 INFO L93 Difference]: Finished difference Result 2656 states and 3576 transitions. [2019-10-14 21:58:21,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 21:58:21,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-14 21:58:21,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:58:21,631 INFO L225 Difference]: With dead ends: 2656 [2019-10-14 21:58:21,632 INFO L226 Difference]: Without dead ends: 2654 [2019-10-14 21:58:21,633 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 21:58:21,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2019-10-14 21:58:21,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2074. [2019-10-14 21:58:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2019-10-14 21:58:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2805 transitions. [2019-10-14 21:58:21,695 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2805 transitions. Word has length 181 [2019-10-14 21:58:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:58:21,695 INFO L462 AbstractCegarLoop]: Abstraction has 2074 states and 2805 transitions. [2019-10-14 21:58:21,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 21:58:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2805 transitions. [2019-10-14 21:58:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-14 21:58:21,699 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:58:21,699 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-14 21:58:21,909 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:21,909 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:58:21,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:58:21,910 INFO L82 PathProgramCache]: Analyzing trace with hash 561580173, now seen corresponding path program 1 times [2019-10-14 21:58:21,910 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:58:21,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732141534] [2019-10-14 21:58:21,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:21,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:21,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:58:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:22,177 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 21:58:22,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732141534] [2019-10-14 21:58:22,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166440340] [2019-10-14 21:58:22,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:22,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 21:58:22,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 21:58:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:58:22,327 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 21:58:22,327 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-10-14 21:58:22,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881367808] [2019-10-14 21:58:22,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 21:58:22,329 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:58:22,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 21:58:22,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-14 21:58:22,329 INFO L87 Difference]: Start difference. First operand 2074 states and 2805 transitions. Second operand 11 states. [2019-10-14 21:58:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:58:25,089 INFO L93 Difference]: Finished difference Result 5142 states and 7503 transitions. [2019-10-14 21:58:25,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-14 21:58:25,089 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2019-10-14 21:58:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:58:25,116 INFO L225 Difference]: With dead ends: 5142 [2019-10-14 21:58:25,116 INFO L226 Difference]: Without dead ends: 3074 [2019-10-14 21:58:25,127 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2019-10-14 21:58:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2019-10-14 21:58:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 3044. [2019-10-14 21:58:25,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3044 states. [2019-10-14 21:58:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 4066 transitions. [2019-10-14 21:58:25,295 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 4066 transitions. Word has length 196 [2019-10-14 21:58:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:58:25,296 INFO L462 AbstractCegarLoop]: Abstraction has 3044 states and 4066 transitions. [2019-10-14 21:58:25,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 21:58:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 4066 transitions. [2019-10-14 21:58:25,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-14 21:58:25,302 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:58:25,303 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-14 21:58:25,508 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:25,509 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:58:25,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:58:25,509 INFO L82 PathProgramCache]: Analyzing trace with hash 876056748, now seen corresponding path program 1 times [2019-10-14 21:58:25,509 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:58:25,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645581383] [2019-10-14 21:58:25,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:25,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:25,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:58:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 21:58:25,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645581383] [2019-10-14 21:58:25,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000246739] [2019-10-14 21:58:25,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:25,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 21:58:25,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 21:58:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 149 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:58:25,973 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 21:58:25,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-10-14 21:58:25,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972383280] [2019-10-14 21:58:25,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 21:58:25,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:58:25,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 21:58:25,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-14 21:58:25,976 INFO L87 Difference]: Start difference. First operand 3044 states and 4066 transitions. Second operand 11 states. [2019-10-14 21:58:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:58:28,099 INFO L93 Difference]: Finished difference Result 5885 states and 7749 transitions. [2019-10-14 21:58:28,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 21:58:28,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 203 [2019-10-14 21:58:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:58:28,114 INFO L225 Difference]: With dead ends: 5885 [2019-10-14 21:58:28,114 INFO L226 Difference]: Without dead ends: 2847 [2019-10-14 21:58:28,126 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2019-10-14 21:58:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2019-10-14 21:58:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2819. [2019-10-14 21:58:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2819 states. [2019-10-14 21:58:28,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3487 transitions. [2019-10-14 21:58:28,198 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3487 transitions. Word has length 203 [2019-10-14 21:58:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:58:28,198 INFO L462 AbstractCegarLoop]: Abstraction has 2819 states and 3487 transitions. [2019-10-14 21:58:28,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 21:58:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3487 transitions. [2019-10-14 21:58:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-14 21:58:28,203 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:58:28,203 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-14 21:58:28,406 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:28,406 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:58:28,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:58:28,407 INFO L82 PathProgramCache]: Analyzing trace with hash 973289144, now seen corresponding path program 1 times [2019-10-14 21:58:28,408 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:58:28,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972699810] [2019-10-14 21:58:28,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:28,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:58:28,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:58:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-14 21:58:28,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972699810] [2019-10-14 21:58:28,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602944657] [2019-10-14 21:58:28,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:58:28,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 21:58:28,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 21:58:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-14 21:58:28,798 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 21:58:28,798 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-10-14 21:58:28,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780462405] [2019-10-14 21:58:28,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 21:58:28,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:58:28,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 21:58:28,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 21:58:28,800 INFO L87 Difference]: Start difference. First operand 2819 states and 3487 transitions. Second operand 3 states. [2019-10-14 21:58:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:58:29,380 INFO L93 Difference]: Finished difference Result 6347 states and 7819 transitions. [2019-10-14 21:58:29,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 21:58:29,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2019-10-14 21:58:29,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:58:29,385 INFO L225 Difference]: With dead ends: 6347 [2019-10-14 21:58:29,385 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 21:58:29,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 21:58:29,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 21:58:29,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 21:58:29,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 21:58:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 21:58:29,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2019-10-14 21:58:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:58:29,397 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 21:58:29,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 21:58:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 21:58:29,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 21:58:29,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:58:29,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 21:58:29,911 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 104