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/Problem04_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 13:53:17,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 13:53:17,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 13:53:17,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 13:53:17,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 13:53:17,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 13:53:17,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 13:53:17,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 13:53:17,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 13:53:17,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 13:53:17,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 13:53:17,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 13:53:17,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 13:53:17,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 13:53:17,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 13:53:17,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 13:53:17,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 13:53:17,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 13:53:17,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 13:53:17,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 13:53:17,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 13:53:17,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 13:53:17,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 13:53:17,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 13:53:17,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 13:53:17,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 13:53:17,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 13:53:17,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 13:53:17,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 13:53:17,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 13:53:17,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 13:53:17,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 13:53:17,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 13:53:17,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 13:53:17,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 13:53:17,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 13:53:17,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 13:53:17,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 13:53:17,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 13:53:17,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 13:53:17,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 13:53:17,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-07 13:53:17,168 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 13:53:17,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 13:53:17,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 13:53:17,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 13:53:17,174 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 13:53:17,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 13:53:17,174 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 13:53:17,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 13:53:17,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 13:53:17,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 13:53:17,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 13:53:17,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 13:53:17,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 13:53:17,176 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 13:53:17,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 13:53:17,177 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 13:53:17,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 13:53:17,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 13:53:17,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 13:53:17,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 13:53:17,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 13:53:17,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 13:53:17,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 13:53:17,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 13:53:17,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 13:53:17,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 13:53:17,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 13:53:17,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 13:53:17,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 13:53:17,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 13:53:17,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 13:53:17,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 13:53:17,243 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 13:53:17,243 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 13:53:17,244 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label26.c [2019-09-07 13:53:17,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239314c0b/72239bd01c18462eaba9764eca037ca3/FLAGae3a8423c [2019-09-07 13:53:18,136 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 13:53:18,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label26.c [2019-09-07 13:53:18,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239314c0b/72239bd01c18462eaba9764eca037ca3/FLAGae3a8423c [2019-09-07 13:53:18,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239314c0b/72239bd01c18462eaba9764eca037ca3 [2019-09-07 13:53:18,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 13:53:18,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 13:53:18,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 13:53:18,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 13:53:18,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 13:53:18,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:53:18" (1/1) ... [2019-09-07 13:53:18,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe21a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:18, skipping insertion in model container [2019-09-07 13:53:18,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:53:18" (1/1) ... [2019-09-07 13:53:18,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 13:53:18,885 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 13:53:20,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:53:20,519 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 13:53:21,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:53:21,350 INFO L192 MainTranslator]: Completed translation [2019-09-07 13:53:21,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21 WrapperNode [2019-09-07 13:53:21,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 13:53:21,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 13:53:21,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 13:53:21,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 13:53:21,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... [2019-09-07 13:53:21,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... [2019-09-07 13:53:21,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... [2019-09-07 13:53:21,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... [2019-09-07 13:53:21,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... [2019-09-07 13:53:21,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... [2019-09-07 13:53:21,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... [2019-09-07 13:53:21,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 13:53:21,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 13:53:21,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 13:53:21,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 13:53:21,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 13:53:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 13:53:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 13:53:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 13:53:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 13:53:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 13:53:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 13:53:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 13:53:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 13:53:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 13:53:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 13:53:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 13:53:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 13:53:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 13:53:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 13:53:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 13:53:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 13:53:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 13:53:26,296 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 13:53:26,297 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 13:53:26,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:53:26 BoogieIcfgContainer [2019-09-07 13:53:26,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 13:53:26,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 13:53:26,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 13:53:26,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 13:53:26,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 01:53:18" (1/3) ... [2019-09-07 13:53:26,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ce628d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:53:26, skipping insertion in model container [2019-09-07 13:53:26,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:53:21" (2/3) ... [2019-09-07 13:53:26,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ce628d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:53:26, skipping insertion in model container [2019-09-07 13:53:26,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:53:26" (3/3) ... [2019-09-07 13:53:26,308 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label26.c [2019-09-07 13:53:26,319 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 13:53:26,331 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 13:53:26,348 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 13:53:26,399 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 13:53:26,400 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 13:53:26,400 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 13:53:26,400 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 13:53:26,401 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 13:53:26,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 13:53:26,401 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 13:53:26,401 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 13:53:26,401 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 13:53:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-09-07 13:53:26,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2019-09-07 13:53:26,501 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:53:26,503 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:53:26,505 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:53:26,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:53:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash -323397917, now seen corresponding path program 1 times [2019-09-07 13:53:26,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:53:26,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:53:26,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:26,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:53:26,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:53:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:53:28,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:53:28,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 13:53:29,001 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 13:53:29,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 13:53:29,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:53:29,021 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 3 states. [2019-09-07 13:53:33,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:53:33,883 INFO L93 Difference]: Finished difference Result 2644 states and 5099 transitions. [2019-09-07 13:53:33,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 13:53:33,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 780 [2019-09-07 13:53:33,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:53:33,944 INFO L225 Difference]: With dead ends: 2644 [2019-09-07 13:53:33,945 INFO L226 Difference]: Without dead ends: 1676 [2019-09-07 13:53:33,958 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:53:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2019-09-07 13:53:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2019-09-07 13:53:34,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2019-09-07 13:53:34,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2956 transitions. [2019-09-07 13:53:34,143 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2956 transitions. Word has length 780 [2019-09-07 13:53:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:53:34,148 INFO L475 AbstractCegarLoop]: Abstraction has 1676 states and 2956 transitions. [2019-09-07 13:53:34,148 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 13:53:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2956 transitions. [2019-09-07 13:53:34,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2019-09-07 13:53:34,181 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:53:34,182 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:53:34,182 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:53:34,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:53:34,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1737666446, now seen corresponding path program 1 times [2019-09-07 13:53:34,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:53:34,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:53:34,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:34,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:53:34,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:53:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:53:34,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:53:34,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 13:53:34,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 13:53:34,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 13:53:34,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 13:53:34,896 INFO L87 Difference]: Start difference. First operand 1676 states and 2956 transitions. Second operand 6 states. [2019-09-07 13:53:40,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:53:40,766 INFO L93 Difference]: Finished difference Result 5104 states and 9045 transitions. [2019-09-07 13:53:40,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 13:53:40,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 838 [2019-09-07 13:53:40,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:53:40,789 INFO L225 Difference]: With dead ends: 5104 [2019-09-07 13:53:40,789 INFO L226 Difference]: Without dead ends: 3434 [2019-09-07 13:53:40,794 INFO L628 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 [2019-09-07 13:53:40,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2019-09-07 13:53:40,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3404. [2019-09-07 13:53:40,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3404 states. [2019-09-07 13:53:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 5691 transitions. [2019-09-07 13:53:40,957 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 5691 transitions. Word has length 838 [2019-09-07 13:53:40,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:53:40,958 INFO L475 AbstractCegarLoop]: Abstraction has 3404 states and 5691 transitions. [2019-09-07 13:53:40,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 13:53:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 5691 transitions. [2019-09-07 13:53:40,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2019-09-07 13:53:40,976 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:53:40,977 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:53:40,978 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:53:40,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:53:40,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2030185827, now seen corresponding path program 1 times [2019-09-07 13:53:40,979 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:53:40,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:53:40,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:40,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:53:40,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:53:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:53:42,040 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:53:42,040 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:53:42,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:53:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:53:42,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:53:42,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:53:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:53:43,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:53:43,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:53:43,059 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:53:43,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:53:43,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:53:43,060 INFO L87 Difference]: Start difference. First operand 3404 states and 5691 transitions. Second operand 9 states. [2019-09-07 13:53:56,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:53:56,254 INFO L93 Difference]: Finished difference Result 14078 states and 24206 transitions. [2019-09-07 13:53:56,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-09-07 13:53:56,254 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 846 [2019-09-07 13:53:56,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:53:56,329 INFO L225 Difference]: With dead ends: 14078 [2019-09-07 13:53:56,329 INFO L226 Difference]: Without dead ends: 10680 [2019-09-07 13:53:56,343 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 853 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2019-09-07 13:53:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2019-09-07 13:53:56,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 10573. [2019-09-07 13:53:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10573 states. [2019-09-07 13:53:56,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10573 states to 10573 states and 15925 transitions. [2019-09-07 13:53:56,738 INFO L78 Accepts]: Start accepts. Automaton has 10573 states and 15925 transitions. Word has length 846 [2019-09-07 13:53:56,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:53:56,739 INFO L475 AbstractCegarLoop]: Abstraction has 10573 states and 15925 transitions. [2019-09-07 13:53:56,739 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:53:56,739 INFO L276 IsEmpty]: Start isEmpty. Operand 10573 states and 15925 transitions. [2019-09-07 13:53:56,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2019-09-07 13:53:56,780 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:53:56,781 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:53:56,781 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:53:56,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:53:56,782 INFO L82 PathProgramCache]: Analyzing trace with hash -16234930, now seen corresponding path program 1 times [2019-09-07 13:53:56,782 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:53:56,783 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:53:56,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:56,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:53:56,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:53:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 95 proven. 22 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-07 13:53:57,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:53:57,708 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:53:57,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:53:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:53:58,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:53:58,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:53:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 13:53:58,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:53:58,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-09-07 13:53:58,404 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:53:58,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:53:58,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:53:58,405 INFO L87 Difference]: Start difference. First operand 10573 states and 15925 transitions. Second operand 9 states. [2019-09-07 13:54:11,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:54:11,227 INFO L93 Difference]: Finished difference Result 41205 states and 67907 transitions. [2019-09-07 13:54:11,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-07 13:54:11,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 884 [2019-09-07 13:54:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:54:11,426 INFO L225 Difference]: With dead ends: 41205 [2019-09-07 13:54:11,427 INFO L226 Difference]: Without dead ends: 30638 [2019-09-07 13:54:11,472 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 924 GetRequests, 899 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2019-09-07 13:54:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30638 states. [2019-09-07 13:54:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30638 to 29584. [2019-09-07 13:54:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29584 states. [2019-09-07 13:54:12,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29584 states to 29584 states and 45956 transitions. [2019-09-07 13:54:12,328 INFO L78 Accepts]: Start accepts. Automaton has 29584 states and 45956 transitions. Word has length 884 [2019-09-07 13:54:12,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:54:12,328 INFO L475 AbstractCegarLoop]: Abstraction has 29584 states and 45956 transitions. [2019-09-07 13:54:12,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:54:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand 29584 states and 45956 transitions. [2019-09-07 13:54:12,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2019-09-07 13:54:12,430 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:54:12,431 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:54:12,431 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:54:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:54:12,432 INFO L82 PathProgramCache]: Analyzing trace with hash -621469174, now seen corresponding path program 1 times [2019-09-07 13:54:12,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:54:12,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:54:12,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:54:12,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:54:12,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:54:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:54:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:54:13,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:54:13,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 13:54:13,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 13:54:13,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 13:54:13,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 13:54:13,468 INFO L87 Difference]: Start difference. First operand 29584 states and 45956 transitions. Second operand 6 states. [2019-09-07 13:54:19,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:54:19,608 INFO L93 Difference]: Finished difference Result 74615 states and 119265 transitions. [2019-09-07 13:54:19,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 13:54:19,608 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 936 [2019-09-07 13:54:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:54:19,813 INFO L225 Difference]: With dead ends: 74615 [2019-09-07 13:54:19,814 INFO L226 Difference]: Without dead ends: 45037 [2019-09-07 13:54:19,909 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:54:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45037 states. [2019-09-07 13:54:20,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45037 to 41579. [2019-09-07 13:54:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41579 states. [2019-09-07 13:54:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41579 states to 41579 states and 62335 transitions. [2019-09-07 13:54:20,956 INFO L78 Accepts]: Start accepts. Automaton has 41579 states and 62335 transitions. Word has length 936 [2019-09-07 13:54:20,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:54:20,957 INFO L475 AbstractCegarLoop]: Abstraction has 41579 states and 62335 transitions. [2019-09-07 13:54:20,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 13:54:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 41579 states and 62335 transitions. [2019-09-07 13:54:21,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2019-09-07 13:54:21,079 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:54:21,080 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:54:21,080 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:54:21,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:54:21,081 INFO L82 PathProgramCache]: Analyzing trace with hash 632268059, now seen corresponding path program 1 times [2019-09-07 13:54:21,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:54:21,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:54:21,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:54:21,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:54:21,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:54:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:54:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:54:26,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:54:26,157 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:54:26,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:54:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:54:26,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:54:26,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:54:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-07 13:54:27,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:54:27,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2019-09-07 13:54:27,612 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-07 13:54:27,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-07 13:54:27,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-07 13:54:27,613 INFO L87 Difference]: Start difference. First operand 41579 states and 62335 transitions. Second operand 11 states. [2019-09-07 13:54:28,303 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-07 13:54:28,478 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-07 13:54:28,993 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-07 13:54:29,294 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-07 13:54:30,158 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-07 13:54:30,491 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-07 13:54:31,028 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-07 13:54:31,481 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-07 13:54:33,396 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-07 13:54:34,536 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-07 13:54:46,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:54:46,001 INFO L93 Difference]: Finished difference Result 92966 states and 146304 transitions. [2019-09-07 13:54:46,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-07 13:54:46,002 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 955 [2019-09-07 13:54:46,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:54:46,245 INFO L225 Difference]: With dead ends: 92966 [2019-09-07 13:54:46,246 INFO L226 Difference]: Without dead ends: 51393 [2019-09-07 13:54:46,566 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1008 GetRequests, 976 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2019-09-07 13:54:46,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51393 states. [2019-09-07 13:54:47,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51393 to 50075. [2019-09-07 13:54:47,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50075 states. [2019-09-07 13:54:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50075 states to 50075 states and 70286 transitions. [2019-09-07 13:54:47,676 INFO L78 Accepts]: Start accepts. Automaton has 50075 states and 70286 transitions. Word has length 955 [2019-09-07 13:54:47,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:54:47,677 INFO L475 AbstractCegarLoop]: Abstraction has 50075 states and 70286 transitions. [2019-09-07 13:54:47,677 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-07 13:54:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 50075 states and 70286 transitions. [2019-09-07 13:54:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1132 [2019-09-07 13:54:47,771 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:54:47,772 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:54:47,773 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:54:47,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:54:47,773 INFO L82 PathProgramCache]: Analyzing trace with hash -367115591, now seen corresponding path program 1 times [2019-09-07 13:54:47,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:54:47,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:54:47,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:54:47,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:54:47,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:54:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:54:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 362 proven. 122 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2019-09-07 13:54:48,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:54:48,829 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:54:48,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:54:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:54:49,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:54:49,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:54:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 244 proven. 2 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2019-09-07 13:54:49,715 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:54:49,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:54:49,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:54:49,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:54:49,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:54:49,718 INFO L87 Difference]: Start difference. First operand 50075 states and 70286 transitions. Second operand 9 states. [2019-09-07 13:55:04,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:55:04,899 INFO L93 Difference]: Finished difference Result 135717 states and 209709 transitions. [2019-09-07 13:55:04,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-07 13:55:04,900 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1131 [2019-09-07 13:55:04,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:55:05,304 INFO L225 Difference]: With dead ends: 135717 [2019-09-07 13:55:05,304 INFO L226 Difference]: Without dead ends: 85648 [2019-09-07 13:55:05,422 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1192 GetRequests, 1157 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=284, Invalid=1048, Unknown=0, NotChecked=0, Total=1332 [2019-09-07 13:55:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85648 states. [2019-09-07 13:55:07,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85648 to 80317. [2019-09-07 13:55:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80317 states. [2019-09-07 13:55:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80317 states to 80317 states and 104955 transitions. [2019-09-07 13:55:07,285 INFO L78 Accepts]: Start accepts. Automaton has 80317 states and 104955 transitions. Word has length 1131 [2019-09-07 13:55:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:55:07,286 INFO L475 AbstractCegarLoop]: Abstraction has 80317 states and 104955 transitions. [2019-09-07 13:55:07,286 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:55:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 80317 states and 104955 transitions. [2019-09-07 13:55:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1531 [2019-09-07 13:55:07,451 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:55:07,452 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:55:07,453 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:55:07,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:55:07,454 INFO L82 PathProgramCache]: Analyzing trace with hash -597104925, now seen corresponding path program 1 times [2019-09-07 13:55:07,454 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:55:07,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:55:07,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:55:07,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:55:07,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:55:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:55:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 741 proven. 254 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-07 13:55:09,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:55:09,289 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:55:09,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:55:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:55:11,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:55:11,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:55:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 418 proven. 2 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2019-09-07 13:55:12,059 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:55:12,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:55:12,061 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:55:12,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:55:12,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:55:12,062 INFO L87 Difference]: Start difference. First operand 80317 states and 104955 transitions. Second operand 13 states. [2019-09-07 13:55:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:55:36,268 INFO L93 Difference]: Finished difference Result 210989 states and 303245 transitions. [2019-09-07 13:55:36,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-09-07 13:55:36,268 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1530 [2019-09-07 13:55:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:55:36,773 INFO L225 Difference]: With dead ends: 210989 [2019-09-07 13:55:36,773 INFO L226 Difference]: Without dead ends: 130678 [2019-09-07 13:55:36,870 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1631 GetRequests, 1574 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=813, Invalid=2609, Unknown=0, NotChecked=0, Total=3422 [2019-09-07 13:55:36,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130678 states. [2019-09-07 13:55:38,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130678 to 128954. [2019-09-07 13:55:38,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128954 states. [2019-09-07 13:55:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128954 states to 128954 states and 168084 transitions. [2019-09-07 13:55:38,989 INFO L78 Accepts]: Start accepts. Automaton has 128954 states and 168084 transitions. Word has length 1530 [2019-09-07 13:55:38,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:55:38,990 INFO L475 AbstractCegarLoop]: Abstraction has 128954 states and 168084 transitions. [2019-09-07 13:55:38,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:55:38,990 INFO L276 IsEmpty]: Start isEmpty. Operand 128954 states and 168084 transitions. [2019-09-07 13:55:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1608 [2019-09-07 13:55:39,357 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:55:39,359 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:55:39,360 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:55:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:55:39,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1636119632, now seen corresponding path program 1 times [2019-09-07 13:55:39,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:55:39,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:55:39,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:55:39,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:55:39,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:55:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:55:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 847 proven. 89 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2019-09-07 13:55:43,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:55:43,085 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:55:43,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:55:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:55:43,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 2216 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:55:43,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:55:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 572 proven. 2 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2019-09-07 13:55:44,412 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:55:44,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:55:44,414 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:55:44,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:55:44,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:55:44,415 INFO L87 Difference]: Start difference. First operand 128954 states and 168084 transitions. Second operand 9 states. [2019-09-07 13:56:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:56:03,585 INFO L93 Difference]: Finished difference Result 355826 states and 483338 transitions. [2019-09-07 13:56:03,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-07 13:56:03,585 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1607 [2019-09-07 13:56:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:56:04,228 INFO L225 Difference]: With dead ends: 355826 [2019-09-07 13:56:04,228 INFO L226 Difference]: Without dead ends: 227712 [2019-09-07 13:56:04,425 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1652 GetRequests, 1625 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2019-09-07 13:56:04,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227712 states. [2019-09-07 13:56:07,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227712 to 227120. [2019-09-07 13:56:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227120 states. [2019-09-07 13:56:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227120 states to 227120 states and 277807 transitions. [2019-09-07 13:56:08,042 INFO L78 Accepts]: Start accepts. Automaton has 227120 states and 277807 transitions. Word has length 1607 [2019-09-07 13:56:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:56:08,043 INFO L475 AbstractCegarLoop]: Abstraction has 227120 states and 277807 transitions. [2019-09-07 13:56:08,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:56:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 227120 states and 277807 transitions. [2019-09-07 13:56:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2899 [2019-09-07 13:56:08,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:56:08,624 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:56:08,624 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:56:08,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:56:08,625 INFO L82 PathProgramCache]: Analyzing trace with hash 252982379, now seen corresponding path program 1 times [2019-09-07 13:56:08,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:56:08,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:56:08,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:56:08,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:56:08,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:56:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:56:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4730 backedges. 2215 proven. 236 refuted. 0 times theorem prover too weak. 2279 trivial. 0 not checked. [2019-09-07 13:56:17,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:56:17,049 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:56:17,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:56:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:56:17,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 3681 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:56:17,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:56:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4730 backedges. 2491 proven. 2 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2019-09-07 13:56:20,642 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:56:20,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:56:20,647 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:56:20,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:56:20,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:56:20,647 INFO L87 Difference]: Start difference. First operand 227120 states and 277807 transitions. Second operand 9 states. [2019-09-07 13:56:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:56:32,253 INFO L93 Difference]: Finished difference Result 477428 states and 601477 transitions. [2019-09-07 13:56:32,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-07 13:56:32,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 2898 [2019-09-07 13:56:32,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:56:33,018 INFO L225 Difference]: With dead ends: 477428 [2019-09-07 13:56:33,019 INFO L226 Difference]: Without dead ends: 251148 [2019-09-07 13:56:33,253 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2915 GetRequests, 2902 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2019-09-07 13:56:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251148 states. [2019-09-07 13:56:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251148 to 250626. [2019-09-07 13:56:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250626 states. [2019-09-07 13:56:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250626 states to 250626 states and 307855 transitions. [2019-09-07 13:56:37,808 INFO L78 Accepts]: Start accepts. Automaton has 250626 states and 307855 transitions. Word has length 2898 [2019-09-07 13:56:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:56:37,810 INFO L475 AbstractCegarLoop]: Abstraction has 250626 states and 307855 transitions. [2019-09-07 13:56:37,810 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:56:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 250626 states and 307855 transitions. [2019-09-07 13:56:43,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2794 [2019-09-07 13:56:43,419 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:56:43,421 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:56:43,421 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:56:43,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:56:43,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1703554409, now seen corresponding path program 1 times [2019-09-07 13:56:43,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:56:43,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:56:43,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:56:43,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:56:43,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:56:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:56:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4674 backedges. 2044 proven. 194 refuted. 0 times theorem prover too weak. 2436 trivial. 0 not checked. [2019-09-07 13:56:47,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:56:47,749 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:56:47,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:56:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:56:48,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 3544 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:56:48,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:56:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4674 backedges. 1564 proven. 2 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2019-09-07 13:56:51,492 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:56:51,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2019-09-07 13:56:51,498 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-07 13:56:51,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-07 13:56:51,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-09-07 13:56:51,499 INFO L87 Difference]: Start difference. First operand 250626 states and 307855 transitions. Second operand 10 states. [2019-09-07 13:57:12,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:57:12,209 INFO L93 Difference]: Finished difference Result 527498 states and 653488 transitions. [2019-09-07 13:57:12,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-09-07 13:57:12,210 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 2793 [2019-09-07 13:57:12,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:57:13,569 INFO L225 Difference]: With dead ends: 527498 [2019-09-07 13:57:13,569 INFO L226 Difference]: Without dead ends: 275861 [2019-09-07 13:57:14,025 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2863 GetRequests, 2820 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=391, Invalid=1589, Unknown=0, NotChecked=0, Total=1980 [2019-09-07 13:57:14,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275861 states. [2019-09-07 13:57:22,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275861 to 263255. [2019-09-07 13:57:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263255 states. [2019-09-07 13:57:23,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263255 states to 263255 states and 301170 transitions. [2019-09-07 13:57:23,836 INFO L78 Accepts]: Start accepts. Automaton has 263255 states and 301170 transitions. Word has length 2793 [2019-09-07 13:57:23,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:57:23,836 INFO L475 AbstractCegarLoop]: Abstraction has 263255 states and 301170 transitions. [2019-09-07 13:57:23,836 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-07 13:57:23,836 INFO L276 IsEmpty]: Start isEmpty. Operand 263255 states and 301170 transitions. [2019-09-07 13:57:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2874 [2019-09-07 13:57:24,430 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:57:24,432 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:57:24,432 INFO L418 AbstractCegarLoop]: === Iteration 12 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:57:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:57:24,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1711123077, now seen corresponding path program 1 times [2019-09-07 13:57:24,433 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:57:24,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:57:24,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:57:24,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:57:24,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:57:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:57:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4215 backedges. 3355 proven. 8 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-09-07 13:57:32,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:57:32,645 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:57:32,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:57:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:57:33,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 3579 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-07 13:57:33,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:57:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4215 backedges. 3355 proven. 8 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-09-07 13:57:36,347 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:57:36,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2019-09-07 13:57:36,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 13:57:36,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 13:57:36,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-07 13:57:36,352 INFO L87 Difference]: Start difference. First operand 263255 states and 301170 transitions. Second operand 6 states. [2019-09-07 13:57:43,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:57:43,994 INFO L93 Difference]: Finished difference Result 491696 states and 563614 transitions. [2019-09-07 13:57:43,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 13:57:43,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 2873 [2019-09-07 13:57:43,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:57:44,610 INFO L225 Difference]: With dead ends: 491696 [2019-09-07 13:57:44,611 INFO L226 Difference]: Without dead ends: 243491 [2019-09-07 13:57:44,823 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2888 GetRequests, 2881 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:57:45,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243491 states. [2019-09-07 13:57:47,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243491 to 236984. [2019-09-07 13:57:47,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236984 states. [2019-09-07 13:57:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236984 states to 236984 states and 262034 transitions. [2019-09-07 13:57:48,233 INFO L78 Accepts]: Start accepts. Automaton has 236984 states and 262034 transitions. Word has length 2873 [2019-09-07 13:57:48,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:57:48,236 INFO L475 AbstractCegarLoop]: Abstraction has 236984 states and 262034 transitions. [2019-09-07 13:57:48,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 13:57:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 236984 states and 262034 transitions. [2019-09-07 13:57:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5403 [2019-09-07 13:57:48,675 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:57:48,677 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:57:48,677 INFO L418 AbstractCegarLoop]: === Iteration 13 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:57:48,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:57:48,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1661925567, now seen corresponding path program 1 times [2019-09-07 13:57:48,678 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:57:48,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:57:48,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:57:48,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:57:48,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:57:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:58:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 21057 backedges. 5261 proven. 2184 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2019-09-07 13:58:06,213 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:58:06,213 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:58:06,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:58:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:58:07,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 6816 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:58:07,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:58:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 21057 backedges. 9438 proven. 5 refuted. 0 times theorem prover too weak. 11614 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (11)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 13:58:16,832 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:58:16,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:58:16,839 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:58:16,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:58:16,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:58:16,840 INFO L87 Difference]: Start difference. First operand 236984 states and 262034 transitions. Second operand 9 states. [2019-09-07 13:58:28,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:58:28,319 INFO L93 Difference]: Finished difference Result 467250 states and 514081 transitions. [2019-09-07 13:58:28,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-07 13:58:28,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5402 [2019-09-07 13:58:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:58:28,859 INFO L225 Difference]: With dead ends: 467250 [2019-09-07 13:58:28,859 INFO L226 Difference]: Without dead ends: 226865 [2019-09-07 13:58:29,074 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5423 GetRequests, 5409 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-09-07 13:58:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226865 states. [2019-09-07 13:58:35,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226865 to 218362. [2019-09-07 13:58:35,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218362 states. [2019-09-07 13:58:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218362 states to 218362 states and 235098 transitions. [2019-09-07 13:58:35,351 INFO L78 Accepts]: Start accepts. Automaton has 218362 states and 235098 transitions. Word has length 5402 [2019-09-07 13:58:35,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:58:35,352 INFO L475 AbstractCegarLoop]: Abstraction has 218362 states and 235098 transitions. [2019-09-07 13:58:35,352 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:58:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 218362 states and 235098 transitions. [2019-09-07 13:58:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5174 [2019-09-07 13:58:35,708 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:58:35,710 INFO L399 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:58:35,711 INFO L418 AbstractCegarLoop]: === Iteration 14 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:58:35,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:58:35,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1884631437, now seen corresponding path program 1 times [2019-09-07 13:58:35,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:58:35,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:58:35,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:58:35,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:58:35,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:58:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:59:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 21357 backedges. 4745 proven. 2763 refuted. 0 times theorem prover too weak. 13849 trivial. 0 not checked. [2019-09-07 13:59:00,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:59:00,182 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:59:00,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:59:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:59:01,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 6640 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:59:01,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:59:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 21357 backedges. 4381 proven. 0 refuted. 0 times theorem prover too weak. 16976 trivial. 0 not checked. [2019-09-07 13:59:10,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:59:10,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2019-09-07 13:59:10,631 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-07 13:59:10,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-07 13:59:10,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-07 13:59:10,632 INFO L87 Difference]: Start difference. First operand 218362 states and 235098 transitions. Second operand 19 states. [2019-09-07 13:59:10,921 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-07 13:59:11,063 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 46 [2019-09-07 13:59:11,401 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-09-07 13:59:11,564 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-07 13:59:12,765 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-07 13:59:12,961 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-07 13:59:13,596 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-07 13:59:15,313 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-07 13:59:15,646 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2019-09-07 13:59:16,079 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-07 13:59:16,849 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-07 13:59:17,475 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2019-09-07 13:59:19,982 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-07 13:59:20,218 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2019-09-07 13:59:23,442 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2019-09-07 13:59:24,646 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-07 13:59:24,882 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-07 13:59:25,944 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2019-09-07 13:59:26,218 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 41 [2019-09-07 13:59:27,529 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-07 13:59:28,349 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2019-09-07 13:59:29,226 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-07 13:59:29,591 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-07 13:59:30,875 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-07 13:59:32,614 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2019-09-07 13:59:34,422 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-07 13:59:34,683 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2019-09-07 13:59:35,510 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-07 13:59:36,002 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-07 13:59:36,708 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2019-09-07 13:59:37,707 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-07 13:59:38,071 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-07 13:59:38,812 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-07 13:59:39,015 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-07 13:59:41,907 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-07 13:59:42,111 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2019-09-07 13:59:42,270 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-07 13:59:43,102 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-07 13:59:45,216 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2019-09-07 13:59:46,028 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-07 13:59:47,206 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-07 13:59:47,415 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-07 13:59:48,009 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-07 13:59:48,283 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-07 13:59:48,497 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-07 13:59:48,708 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-07 13:59:49,621 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-07 13:59:50,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:59:50,314 INFO L93 Difference]: Finished difference Result 435916 states and 469973 transitions. [2019-09-07 13:59:50,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2019-09-07 13:59:50,315 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 5173 [2019-09-07 13:59:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:59:50,735 INFO L225 Difference]: With dead ends: 435916 [2019-09-07 13:59:50,735 INFO L226 Difference]: Without dead ends: 217538 [2019-09-07 13:59:50,923 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5340 GetRequests, 5237 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4108 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=1974, Invalid=8946, Unknown=0, NotChecked=0, Total=10920 [2019-09-07 13:59:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217538 states. [2019-09-07 13:59:53,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217538 to 211464. [2019-09-07 13:59:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211464 states. [2019-09-07 13:59:53,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211464 states to 211464 states and 224680 transitions. [2019-09-07 13:59:53,643 INFO L78 Accepts]: Start accepts. Automaton has 211464 states and 224680 transitions. Word has length 5173 [2019-09-07 13:59:53,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:59:53,644 INFO L475 AbstractCegarLoop]: Abstraction has 211464 states and 224680 transitions. [2019-09-07 13:59:53,644 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-07 13:59:53,644 INFO L276 IsEmpty]: Start isEmpty. Operand 211464 states and 224680 transitions. [2019-09-07 13:59:53,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5457 [2019-09-07 13:59:53,998 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:59:54,000 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:59:54,000 INFO L418 AbstractCegarLoop]: === Iteration 15 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:59:54,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:59:54,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1391132127, now seen corresponding path program 1 times [2019-09-07 13:59:54,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:59:54,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:59:54,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:59:54,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:59:54,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:59:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:59:59,388 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-07 14:00:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 22642 backedges. 4819 proven. 1799 refuted. 0 times theorem prover too weak. 16024 trivial. 0 not checked. [2019-09-07 14:00:18,404 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 14:00:18,404 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 14:00:18,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 14:00:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 14:00:19,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 6832 conjuncts, 95 conjunts are in the unsatisfiable core [2019-09-07 14:00:19,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 14:00:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 22642 backedges. 4582 proven. 0 refuted. 0 times theorem prover too weak. 18060 trivial. 0 not checked. [2019-09-07 14:00:42,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 14:00:42,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 20 [2019-09-07 14:00:42,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-07 14:00:42,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-07 14:00:42,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2019-09-07 14:00:42,974 INFO L87 Difference]: Start difference. First operand 211464 states and 224680 transitions. Second operand 20 states. [2019-09-07 14:00:43,276 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-07 14:00:43,538 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-07 14:00:43,813 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-07 14:00:46,206 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-07 14:00:46,706 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-07 14:00:47,987 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-07 14:00:49,727 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2019-09-07 14:00:50,998 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-07 14:00:52,086 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-07 14:00:52,388 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-07 14:00:52,944 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-07 14:00:53,642 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-07 14:00:53,908 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-07 14:00:54,942 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-07 14:00:55,460 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2019-09-07 14:00:55,922 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-07 14:00:56,861 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-07 14:00:57,082 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-07 14:00:57,266 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-07 14:00:58,951 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-07 14:01:00,887 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2019-09-07 14:01:01,279 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-07 14:01:01,472 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-07 14:01:01,686 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-07 14:01:03,029 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-09-07 14:01:03,790 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-07 14:01:04,478 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-07 14:01:07,172 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 14:01:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 14:01:09,053 INFO L93 Difference]: Finished difference Result 362984 states and 384193 transitions. [2019-09-07 14:01:09,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-09-07 14:01:09,053 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 5456 [2019-09-07 14:01:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 14:01:09,329 INFO L225 Difference]: With dead ends: 362984 [2019-09-07 14:01:09,330 INFO L226 Difference]: Without dead ends: 159114 [2019-09-07 14:01:09,467 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5541 GetRequests, 5476 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=960, Invalid=3330, Unknown=0, NotChecked=0, Total=4290 [2019-09-07 14:01:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159114 states. [2019-09-07 14:01:10,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159114 to 154145. [2019-09-07 14:01:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154145 states. [2019-09-07 14:01:15,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154145 states to 154145 states and 160605 transitions. [2019-09-07 14:01:15,391 INFO L78 Accepts]: Start accepts. Automaton has 154145 states and 160605 transitions. Word has length 5456 [2019-09-07 14:01:15,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 14:01:15,392 INFO L475 AbstractCegarLoop]: Abstraction has 154145 states and 160605 transitions. [2019-09-07 14:01:15,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-07 14:01:15,392 INFO L276 IsEmpty]: Start isEmpty. Operand 154145 states and 160605 transitions. [2019-09-07 14:01:15,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5469 [2019-09-07 14:01:15,667 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 14:01:15,669 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 14:01:15,669 INFO L418 AbstractCegarLoop]: === Iteration 16 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 14:01:15,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 14:01:15,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1124191153, now seen corresponding path program 1 times [2019-09-07 14:01:15,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 14:01:15,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 14:01:15,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 14:01:15,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 14:01:15,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 14:01:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 14:01:18,556 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-07 14:01:18,706 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 14:01:19,377 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-09-07 14:02:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 25684 backedges. 6689 proven. 10210 refuted. 0 times theorem prover too weak. 8785 trivial. 0 not checked. [2019-09-07 14:02:02,444 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 14:02:02,444 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 14:02:02,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 14:02:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 14:02:03,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 7042 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 14:02:03,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 14:02:04,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 14:02:13,603 INFO L134 CoverageAnalysis]: Checked inductivity of 25684 backedges. 4174 proven. 2 refuted. 0 times theorem prover too weak. 21508 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (14)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 14:02:13,622 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 14:02:13,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 5] total 42 [2019-09-07 14:02:13,628 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-09-07 14:02:13,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-09-07 14:02:13,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1539, Unknown=0, NotChecked=0, Total=1722 [2019-09-07 14:02:13,629 INFO L87 Difference]: Start difference. First operand 154145 states and 160605 transitions. Second operand 42 states. [2019-09-07 14:02:13,827 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-07 14:02:14,309 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2019-09-07 14:02:14,508 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2019-09-07 14:02:14,836 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 38 [2019-09-07 14:02:18,943 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 47 [2019-09-07 14:02:20,632 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 39 [2019-09-07 14:02:24,589 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-07 14:02:24,920 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 14:02:25,492 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-07 14:02:26,497 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 45 [2019-09-07 14:02:28,675 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-07 14:02:29,189 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 63 [2019-09-07 14:02:29,542 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2019-09-07 14:02:29,897 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2019-09-07 14:02:31,214 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 45 [2019-09-07 14:02:31,571 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-07 14:02:32,890 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 41 [2019-09-07 14:02:33,192 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2019-09-07 14:02:34,027 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 42 [2019-09-07 14:02:38,325 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-07 14:02:40,690 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 14:02:41,556 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2019-09-07 14:02:41,890 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2019-09-07 14:02:42,361 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 27 [2019-09-07 14:02:43,051 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 48 [2019-09-07 14:02:44,960 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 35 [2019-09-07 14:02:45,500 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 28 [2019-09-07 14:02:49,138 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2019-09-07 14:02:49,831 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-07 14:02:50,767 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2019-09-07 14:02:51,013 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2019-09-07 14:02:51,592 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2019-09-07 14:02:52,192 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-07 14:02:53,564 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-07 14:02:54,056 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-07 14:02:55,449 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-07 14:02:57,058 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-07 14:02:57,836 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 32 [2019-09-07 14:02:58,444 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 26 [2019-09-07 14:02:58,822 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-07 14:02:59,610 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 28 [2019-09-07 14:03:00,143 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 29 [2019-09-07 14:03:02,214 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 44 [2019-09-07 14:03:02,884 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 14:03:03,618 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 33 [2019-09-07 14:03:04,267 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 36 [2019-09-07 14:03:05,630 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 59 [2019-09-07 14:03:06,726 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 14:03:08,863 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2019-09-07 14:03:09,728 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 14:03:10,947 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2019-09-07 14:03:11,765 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 14:03:12,699 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 31 [2019-09-07 14:03:13,618 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-07 14:03:14,355 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2019-09-07 14:03:15,726 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 38 [2019-09-07 14:03:16,629 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 38 [2019-09-07 14:03:17,114 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2019-09-07 14:03:17,727 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 45 [2019-09-07 14:03:18,853 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 51 [2019-09-07 14:03:20,228 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 30 [2019-09-07 14:03:20,649 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 38 [2019-09-07 14:03:21,342 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 30 [2019-09-07 14:03:22,329 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 14:03:22,651 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 36 [2019-09-07 14:03:22,933 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2019-09-07 14:03:23,826 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2019-09-07 14:03:25,080 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2019-09-07 14:03:25,362 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 39 [2019-09-07 14:03:26,768 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-07 14:03:27,263 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 88 [2019-09-07 14:03:27,528 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 31 [2019-09-07 14:03:27,803 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-07 14:03:28,272 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 44 [2019-09-07 14:03:28,875 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-07 14:03:29,421 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2019-09-07 14:03:30,168 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 14:03:31,053 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 60 [2019-09-07 14:03:31,620 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2019-09-07 14:03:31,926 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2019-09-07 14:03:32,393 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 30 [2019-09-07 14:03:33,233 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-07 14:03:33,885 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2019-09-07 14:03:34,204 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 14:03:34,629 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 47 [2019-09-07 14:03:35,323 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 32 [2019-09-07 14:03:35,769 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2019-09-07 14:03:36,189 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 27 [2019-09-07 14:03:37,186 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-07 14:03:37,532 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 42 [2019-09-07 14:03:37,971 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 36 [2019-09-07 14:03:38,272 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-07 14:03:38,676 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-07 14:03:39,212 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 38 [2019-09-07 14:03:39,944 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 26 [2019-09-07 14:03:41,053 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 34 [2019-09-07 14:03:41,263 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2019-09-07 14:03:41,769 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2019-09-07 14:03:42,137 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2019-09-07 14:03:42,511 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 14:03:42,873 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 25 [2019-09-07 14:03:43,189 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-07 14:03:43,749 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 46 [2019-09-07 14:03:44,070 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 32 [2019-09-07 14:03:44,493 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 39 [2019-09-07 14:03:44,749 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2019-09-07 14:03:44,993 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 41 [2019-09-07 14:03:45,544 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 42 [2019-09-07 14:03:46,040 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-07 14:03:46,840 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 14:03:47,444 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-07 14:03:48,006 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2019-09-07 14:03:48,252 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-07 14:03:48,520 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-07 14:03:48,884 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2019-09-07 14:03:49,515 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-07 14:03:49,920 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 31 [2019-09-07 14:03:50,161 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 35 [2019-09-07 14:03:50,755 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2019-09-07 14:03:51,021 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 33 [2019-09-07 14:03:51,429 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2019-09-07 14:03:51,697 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 29 [2019-09-07 14:03:51,910 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 38 [2019-09-07 14:03:52,334 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 32 [2019-09-07 14:03:52,670 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 33 [2019-09-07 14:03:53,618 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2019-09-07 14:03:54,549 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 60 [2019-09-07 14:03:54,835 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 52 [2019-09-07 14:03:55,724 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 32 [2019-09-07 14:03:56,066 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 41 [2019-09-07 14:03:56,401 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 39 [2019-09-07 14:03:56,870 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2019-09-07 14:03:57,151 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 47 [2019-09-07 14:03:58,280 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2019-09-07 14:03:59,078 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-09-07 14:03:59,438 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 37 [2019-09-07 14:03:59,777 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2019-09-07 14:04:00,334 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 40 [2019-09-07 14:04:01,474 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-09-07 14:04:01,720 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2019-09-07 14:04:02,188 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2019-09-07 14:04:02,789 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2019-09-07 14:04:03,034 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2019-09-07 14:04:03,692 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 31 [2019-09-07 14:04:04,869 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 39 [2019-09-07 14:04:05,957 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2019-09-07 14:04:06,481 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 34 [2019-09-07 14:04:07,485 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 38 [2019-09-07 14:04:08,216 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2019-09-07 14:04:08,529 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 40 [2019-09-07 14:04:08,808 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2019-09-07 14:04:09,456 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-07 14:04:09,678 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-07 14:04:10,150 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2019-09-07 14:04:10,438 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 53 [2019-09-07 14:04:11,592 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 14:04:12,029 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 62 [2019-09-07 14:04:12,297 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 52 [2019-09-07 14:04:12,943 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 46 [2019-09-07 14:04:13,198 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 14:04:13,611 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 31 [2019-09-07 14:04:13,861 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 42 [2019-09-07 14:04:14,373 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-07 14:04:14,973 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2019-09-07 14:04:15,294 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 45 [2019-09-07 14:04:15,930 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-07 14:04:16,446 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-07 14:04:17,414 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 14:04:17,810 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-07 14:04:18,056 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-07 14:04:18,354 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 14:04:18,762 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2019-09-07 14:04:19,040 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-07 14:04:19,405 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-07 14:04:19,907 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 57 [2019-09-07 14:04:20,171 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 45 [2019-09-07 14:04:20,595 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 31 [2019-09-07 14:04:21,018 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 49 [2019-09-07 14:04:21,226 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 38 [2019-09-07 14:04:21,833 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-07 14:04:22,103 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 14:04:22,655 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-07 14:04:23,014 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-07 14:04:23,310 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-07 14:04:23,867 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 92 [2019-09-07 14:04:24,276 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-09-07 14:04:24,550 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2019-09-07 14:04:24,802 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 27 [2019-09-07 14:04:25,008 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 30 [2019-09-07 14:04:25,188 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 33 [2019-09-07 14:04:25,550 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2019-09-07 14:04:25,710 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-07 14:04:26,159 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2019-09-07 14:04:26,460 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 31 [2019-09-07 14:04:26,768 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 39 [2019-09-07 14:04:27,063 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2019-09-07 14:04:27,274 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 33 [2019-09-07 14:04:27,575 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 30 [2019-09-07 14:04:27,801 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 36 [2019-09-07 14:04:28,124 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 35 [2019-09-07 14:04:28,397 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 35 [2019-09-07 14:04:28,645 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-07 14:04:29,137 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 36 [2019-09-07 14:04:29,674 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 56 [2019-09-07 14:04:29,859 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 41 [2019-09-07 14:04:30,276 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2019-09-07 14:04:30,534 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 14:04:30,772 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2019-09-07 14:04:31,262 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2019-09-07 14:04:31,659 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2019-09-07 14:04:32,000 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2019-09-07 14:04:32,571 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 42 [2019-09-07 14:04:33,533 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 52 [2019-09-07 14:04:33,993 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-07 14:04:36,785 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2019-09-07 14:04:38,008 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-07 14:04:38,317 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2019-09-07 14:04:38,533 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 40 [2019-09-07 14:04:39,337 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 37 [2019-09-07 14:04:40,077 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 41 [2019-09-07 14:04:40,295 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 50 [2019-09-07 14:04:42,734 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 21 [2019-09-07 14:04:43,653 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 31 [2019-09-07 14:04:46,185 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 37 [2019-09-07 14:04:46,472 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 29 [2019-09-07 14:04:50,023 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 46 [2019-09-07 14:04:50,446 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2019-09-07 14:04:52,839 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 44 [2019-09-07 14:04:53,150 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 22 [2019-09-07 14:04:58,010 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 47 [2019-09-07 14:04:58,359 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-09-07 14:05:00,848 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 26 [2019-09-07 14:05:01,334 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2019-09-07 14:05:04,136 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 46 [2019-09-07 14:05:04,586 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 59 [2019-09-07 14:05:05,352 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 14:05:05,764 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-07 14:05:05,991 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 46 [2019-09-07 14:05:06,302 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 31 [2019-09-07 14:05:06,565 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 25 [2019-09-07 14:05:14,379 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 14:05:14,727 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-07 14:05:16,636 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 29 [2019-09-07 14:05:26,151 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 50 [2019-09-07 14:05:28,564 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2019-09-07 14:05:29,810 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 14:05:31,497 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-07 14:05:31,871 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48