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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:40:05,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:40:05,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:40:05,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 01:40:05,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:40:05,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:40:05,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:40:05,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:40:05,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:40:05,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:40:05,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:40:05,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:40:05,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:40:05,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:40:05,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:40:05,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:40:05,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:40:05,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:40:05,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:40:05,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:40:05,886 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 [2019-10-15 01:40:05,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:40:05,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:40:05,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:40:05,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:40:05,914 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:40:05,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:40:05,915 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:40:05,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:40:05,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:40:05,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:40:05,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:40:05,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:40:05,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:40:05,916 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:40:05,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:40:05,917 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:40:05,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:40:05,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:40:05,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:40:05,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:40:05,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:40:05,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:40:05,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:40:05,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:40:05,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:40:05,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:40:05,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:40:05,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:40:05,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:40:06,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:40:06,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:40:06,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:40:06,243 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:40:06,244 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:40:06,244 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2019-10-15 01:40:06,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052b218ee/c17ccf69768043169af612363232f1ff/FLAG96908bf23 [2019-10-15 01:40:06,909 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:40:06,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2019-10-15 01:40:06,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052b218ee/c17ccf69768043169af612363232f1ff/FLAG96908bf23 [2019-10-15 01:40:07,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052b218ee/c17ccf69768043169af612363232f1ff [2019-10-15 01:40:07,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:40:07,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:40:07,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:07,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:40:07,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:40:07,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:07,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5014cfc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07, skipping insertion in model container [2019-10-15 01:40:07,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:07,172 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:40:07,228 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:40:07,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:07,770 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:40:07,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:07,909 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:40:07,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07 WrapperNode [2019-10-15 01:40:07,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:07,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:40:07,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:40:07,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:40:07,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:07,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:07,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:07,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:07,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:08,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:08,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (1/1) ... [2019-10-15 01:40:08,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:40:08,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:40:08,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:40:08,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:40:08,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (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 [2019-10-15 01:40:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:40:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:40:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:40:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:40:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:40:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:40:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:40:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:40:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:40:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:40:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:40:10,096 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:40:10,096 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:40:10,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:10 BoogieIcfgContainer [2019-10-15 01:40:10,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:40:10,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:40:10,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:40:10,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:40:10,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:40:07" (1/3) ... [2019-10-15 01:40:10,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5d8165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:10, skipping insertion in model container [2019-10-15 01:40:10,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:07" (2/3) ... [2019-10-15 01:40:10,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5d8165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:10, skipping insertion in model container [2019-10-15 01:40:10,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:10" (3/3) ... [2019-10-15 01:40:10,107 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label35.c [2019-10-15 01:40:10,117 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:40:10,126 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:40:10,139 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:40:10,165 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:40:10,166 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:40:10,166 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:40:10,166 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:40:10,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:40:10,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:40:10,166 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:40:10,167 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:40:10,188 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-15 01:40:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 01:40:10,197 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:10,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:10,201 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:10,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:10,207 INFO L82 PathProgramCache]: Analyzing trace with hash 826790220, now seen corresponding path program 1 times [2019-10-15 01:40:10,216 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:10,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412165397] [2019-10-15 01:40:10,217 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:10,217 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:10,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:10,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412165397] [2019-10-15 01:40:10,663 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:10,663 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:10,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572716698] [2019-10-15 01:40:10,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:10,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:10,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:10,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:10,688 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-10-15 01:40:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:11,212 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-10-15 01:40:11,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:11,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-15 01:40:11,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:11,231 INFO L225 Difference]: With dead ends: 246 [2019-10-15 01:40:11,231 INFO L226 Difference]: Without dead ends: 157 [2019-10-15 01:40:11,235 INFO L600 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 [2019-10-15 01:40:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-15 01:40:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-15 01:40:11,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-15 01:40:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2019-10-15 01:40:11,308 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 77 [2019-10-15 01:40:11,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:11,309 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2019-10-15 01:40:11,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2019-10-15 01:40:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-15 01:40:11,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:11,315 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:40:11,315 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:11,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:11,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1195696413, now seen corresponding path program 1 times [2019-10-15 01:40:11,316 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:11,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175293617] [2019-10-15 01:40:11,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:11,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:11,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:11,428 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175293617] [2019-10-15 01:40:11,429 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:11,429 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:11,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621595084] [2019-10-15 01:40:11,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:11,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:11,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:11,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:11,433 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand 6 states. [2019-10-15 01:40:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:12,100 INFO L93 Difference]: Finished difference Result 402 states and 725 transitions. [2019-10-15 01:40:12,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:40:12,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-10-15 01:40:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:12,106 INFO L225 Difference]: With dead ends: 402 [2019-10-15 01:40:12,106 INFO L226 Difference]: Without dead ends: 250 [2019-10-15 01:40:12,108 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:40:12,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-10-15 01:40:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 238. [2019-10-15 01:40:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-10-15 01:40:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 407 transitions. [2019-10-15 01:40:12,155 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 407 transitions. Word has length 87 [2019-10-15 01:40:12,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:12,155 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 407 transitions. [2019-10-15 01:40:12,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 407 transitions. [2019-10-15 01:40:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-15 01:40:12,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:12,159 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:40:12,160 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:12,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:12,160 INFO L82 PathProgramCache]: Analyzing trace with hash -2128718017, now seen corresponding path program 1 times [2019-10-15 01:40:12,160 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:12,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520633912] [2019-10-15 01:40:12,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:12,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:12,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:12,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520633912] [2019-10-15 01:40:12,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:12,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:12,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891256712] [2019-10-15 01:40:12,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:12,379 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:12,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:12,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:12,384 INFO L87 Difference]: Start difference. First operand 238 states and 407 transitions. Second operand 3 states. [2019-10-15 01:40:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:12,838 INFO L93 Difference]: Finished difference Result 700 states and 1242 transitions. [2019-10-15 01:40:12,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:12,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2019-10-15 01:40:12,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:12,845 INFO L225 Difference]: With dead ends: 700 [2019-10-15 01:40:12,846 INFO L226 Difference]: Without dead ends: 467 [2019-10-15 01:40:12,847 INFO L600 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 [2019-10-15 01:40:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-10-15 01:40:12,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2019-10-15 01:40:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-15 01:40:12,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 737 transitions. [2019-10-15 01:40:12,911 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 737 transitions. Word has length 88 [2019-10-15 01:40:12,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:12,912 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 737 transitions. [2019-10-15 01:40:12,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:12,912 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 737 transitions. [2019-10-15 01:40:12,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 01:40:12,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:12,927 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:40:12,927 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:12,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:12,927 INFO L82 PathProgramCache]: Analyzing trace with hash -847323169, now seen corresponding path program 1 times [2019-10-15 01:40:12,928 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:12,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831513527] [2019-10-15 01:40:12,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:12,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:12,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:13,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831513527] [2019-10-15 01:40:13,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:13,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:13,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116325033] [2019-10-15 01:40:13,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:13,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:13,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:13,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:13,083 INFO L87 Difference]: Start difference. First operand 467 states and 737 transitions. Second operand 6 states. [2019-10-15 01:40:13,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:13,770 INFO L93 Difference]: Finished difference Result 955 states and 1521 transitions. [2019-10-15 01:40:13,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:40:13,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-10-15 01:40:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:13,775 INFO L225 Difference]: With dead ends: 955 [2019-10-15 01:40:13,775 INFO L226 Difference]: Without dead ends: 493 [2019-10-15 01:40:13,777 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:40:13,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-15 01:40:13,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 404. [2019-10-15 01:40:13,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2019-10-15 01:40:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 584 transitions. [2019-10-15 01:40:13,804 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 584 transitions. Word has length 89 [2019-10-15 01:40:13,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:13,804 INFO L462 AbstractCegarLoop]: Abstraction has 404 states and 584 transitions. [2019-10-15 01:40:13,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 584 transitions. [2019-10-15 01:40:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-15 01:40:13,807 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:13,808 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:13,808 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:13,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2062216878, now seen corresponding path program 1 times [2019-10-15 01:40:13,809 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:13,809 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053380017] [2019-10-15 01:40:13,809 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:13,810 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:13,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:13,962 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053380017] [2019-10-15 01:40:13,962 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291444991] [2019-10-15 01:40:13,962 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 [2019-10-15 01:40:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:14,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 01:40:14,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:40:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:14,181 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:40:14,408 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-10-15 01:40:14,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:40:14,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:40:14,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:40:14,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:40:14,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:40:14,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:40:14,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:40:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:14,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [50912805] [2019-10-15 01:40:14,634 INFO L162 IcfgInterpreter]: Started Sifa with 81 locations of interest [2019-10-15 01:40:14,635 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:40:14,642 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:40:14,652 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:40:14,653 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:40:15,076 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 98 for LOIs [2019-10-15 01:40:16,006 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 160 [2019-10-15 01:40:17,285 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 139 for LOIs [2019-10-15 01:40:17,836 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-10-15 01:40:17,994 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-10-15 01:40:18,207 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-10-15 01:40:18,477 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-10-15 01:40:18,612 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-10-15 01:40:18,757 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:40:19,112 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:19,315 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:19,677 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:19,799 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:19,928 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-10-15 01:40:20,256 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:20,410 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:20,644 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:20,763 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:20,891 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:21,516 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:21,637 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:21,773 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:40:22,027 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:22,147 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:22,273 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:40:22,489 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:22,633 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:22,766 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:23,225 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:23,359 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:23,520 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:40:23,716 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:23,845 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:23,980 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:24,349 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:24,475 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:24,598 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:40:24,818 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:24,935 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:25,086 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:25,297 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:25,417 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:25,538 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-15 01:40:25,735 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:25,857 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:25,976 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:40:26,163 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:26,285 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:26,410 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:40:26,596 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:26,711 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:26,833 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:40:27,066 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:27,180 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:27,302 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-10-15 01:40:27,460 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:27,573 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:27,688 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:27,874 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:27,991 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:28,113 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:28,310 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:28,425 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:28,541 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:28,736 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:28,849 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:28,979 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:29,163 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:29,286 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:29,407 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:40:29,574 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:29,688 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:29,810 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:29,973 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:30,086 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:30,209 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-10-15 01:40:30,396 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:30,511 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:30,632 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-10-15 01:40:30,814 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:30,929 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:31,048 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:31,227 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:31,352 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:31,479 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:31,807 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:31,918 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:32,041 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:32,213 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:32,327 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:32,445 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:32,653 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:32,768 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:32,889 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:33,054 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:33,170 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:33,286 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:40:33,451 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:33,560 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:33,703 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:40:33,894 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:34,004 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:34,135 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:34,298 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:34,415 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:40:34,530 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-15 01:40:34,693 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:34,804 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:34,921 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:35,078 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:35,185 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:35,296 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:40:35,449 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:35,557 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:35,670 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-15 01:40:35,825 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:35,930 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:36,074 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-10-15 01:40:36,251 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:36,357 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:36,470 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:36,629 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:36,733 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:36,843 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:37,086 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:37,196 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:40:37,307 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-10-15 01:40:37,660 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:40:38,004 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:40:38,354 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:40:38,611 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-15 01:40:38,716 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-15 01:40:39,079 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:40:39,370 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-15 01:40:39,569 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:40:39,816 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-15 01:40:39,922 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:40:40,289 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:40:40,550 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-15 01:40:40,652 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:40:40,897 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-15 01:40:40,999 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:40:41,257 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-15 01:40:41,364 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:40:41,704 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:40:42,049 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:40:42,397 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:40:42,645 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-15 01:40:42,748 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-15 01:40:43,080 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-10-15 01:40:43,658 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-10-15 01:40:46,087 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 175 [2019-10-15 01:40:46,089 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-10-15 01:40:46,540 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 67392 conjuctions. This might take some time...