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_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 13:40:49,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 13:40:49,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 13:40:49,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 13:40:49,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 13:40:49,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 13:40:49,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 13:40:49,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 13:40:49,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 13:40:49,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 13:40:49,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 13:40:49,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 13:40:49,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 13:40:49,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 13:40:49,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 13:40:49,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 13:40:49,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 13:40:49,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 13:40:49,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 13:40:49,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 13:40:49,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 13:40:49,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 13:40:49,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 13:40:49,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 13:40:49,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 13:40:49,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 13:40:49,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 13:40:49,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 13:40:49,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 13:40:49,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 13:40:49,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 13:40:49,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 13:40:49,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 13:40:49,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 13:40:49,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 13:40:49,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 13:40:49,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 13:40:49,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 13:40:49,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 13:40:49,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 13:40:49,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 13:40:49,899 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 13:40:49,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 13:40:49,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 13:40:49,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 13:40:49,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 13:40:49,922 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 13:40:49,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 13:40:49,922 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 13:40:49,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 13:40:49,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 13:40:49,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 13:40:49,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 13:40:49,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 13:40:49,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 13:40:49,923 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 13:40:49,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 13:40:49,924 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 13:40:49,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 13:40:49,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 13:40:49,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 13:40:49,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 13:40:49,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 13:40:49,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 13:40:49,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 13:40:49,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 13:40:49,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 13:40:49,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 13:40:49,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 13:40:49,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 13:40:49,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 13:40:49,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 13:40:49,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 13:40:49,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 13:40:50,000 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 13:40:50,000 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 13:40:50,001 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label09.c [2019-09-07 13:40:50,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcbb3d6a4/429e3bcbced84cf5b632f3401da773a2/FLAGbd7b82173 [2019-09-07 13:40:50,875 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 13:40:50,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label09.c [2019-09-07 13:40:50,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcbb3d6a4/429e3bcbced84cf5b632f3401da773a2/FLAGbd7b82173 [2019-09-07 13:40:50,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcbb3d6a4/429e3bcbced84cf5b632f3401da773a2 [2019-09-07 13:40:50,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 13:40:51,002 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 13:40:51,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 13:40:51,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 13:40:51,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 13:40:51,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:40:50" (1/1) ... [2019-09-07 13:40:51,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7916dcb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:51, skipping insertion in model container [2019-09-07 13:40:51,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:40:50" (1/1) ... [2019-09-07 13:40:51,020 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 13:40:51,197 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 13:40:52,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:40:53,003 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 13:40:53,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:40:53,726 INFO L192 MainTranslator]: Completed translation [2019-09-07 13:40:53,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53 WrapperNode [2019-09-07 13:40:53,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 13:40:53,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 13:40:53,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 13:40:53,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 13:40:53,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (1/1) ... [2019-09-07 13:40:53,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (1/1) ... [2019-09-07 13:40:53,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (1/1) ... [2019-09-07 13:40:53,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (1/1) ... [2019-09-07 13:40:53,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (1/1) ... [2019-09-07 13:40:53,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (1/1) ... [2019-09-07 13:40:53,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (1/1) ... [2019-09-07 13:40:53,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 13:40:53,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 13:40:53,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 13:40:53,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 13:40:53,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (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 13:40:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 13:40:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 13:40:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 13:40:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 13:40:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 13:40:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 13:40:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 13:40:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 13:40:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 13:40:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 13:40:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 13:40:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 13:40:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 13:40:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 13:40:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 13:40:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 13:40:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 13:40:58,556 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 13:40:58,560 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 13:40:58,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:40:58 BoogieIcfgContainer [2019-09-07 13:40:58,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 13:40:58,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 13:40:58,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 13:40:58,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 13:40:58,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 01:40:50" (1/3) ... [2019-09-07 13:40:58,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:40:58, skipping insertion in model container [2019-09-07 13:40:58,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:40:53" (2/3) ... [2019-09-07 13:40:58,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:40:58, skipping insertion in model container [2019-09-07 13:40:58,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:40:58" (3/3) ... [2019-09-07 13:40:58,578 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label09.c [2019-09-07 13:40:58,592 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 13:40:58,602 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 13:40:58,621 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 13:40:58,673 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 13:40:58,674 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 13:40:58,674 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 13:40:58,674 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 13:40:58,674 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 13:40:58,674 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 13:40:58,675 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 13:40:58,675 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 13:40:58,675 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 13:40:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-09-07 13:40:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2019-09-07 13:40:58,762 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:40:58,763 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, 1, 1] [2019-09-07 13:40:58,766 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:40:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:40:58,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1547608885, now seen corresponding path program 1 times [2019-09-07 13:40:58,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:40:58,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:40:58,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:40:58,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:40:58,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:40:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:00,763 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 13:41:00,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:41:00,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 13:41:00,773 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 13:41:00,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 13:41:00,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:41:00,791 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 3 states. [2019-09-07 13:41:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:05,330 INFO L93 Difference]: Finished difference Result 2644 states and 5099 transitions. [2019-09-07 13:41:05,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 13:41:05,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 782 [2019-09-07 13:41:05,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:05,403 INFO L225 Difference]: With dead ends: 2644 [2019-09-07 13:41:05,403 INFO L226 Difference]: Without dead ends: 1676 [2019-09-07 13:41:05,420 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 6 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 13:41:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2019-09-07 13:41:05,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2019-09-07 13:41:05,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2019-09-07 13:41:05,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 3016 transitions. [2019-09-07 13:41:05,626 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 3016 transitions. Word has length 782 [2019-09-07 13:41:05,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:05,631 INFO L475 AbstractCegarLoop]: Abstraction has 1676 states and 3016 transitions. [2019-09-07 13:41:05,631 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 13:41:05,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 3016 transitions. [2019-09-07 13:41:05,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2019-09-07 13:41:05,683 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:05,684 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:05,685 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:05,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:05,687 INFO L82 PathProgramCache]: Analyzing trace with hash 134478042, now seen corresponding path program 1 times [2019-09-07 13:41:05,687 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:05,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:05,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:05,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:05,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:07,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:41:07,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 13:41:07,194 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 13:41:07,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 13:41:07,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 13:41:07,195 INFO L87 Difference]: Start difference. First operand 1676 states and 3016 transitions. Second operand 4 states. [2019-09-07 13:41:14,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:14,231 INFO L93 Difference]: Finished difference Result 6682 states and 12167 transitions. [2019-09-07 13:41:14,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 13:41:14,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 790 [2019-09-07 13:41:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:14,276 INFO L225 Difference]: With dead ends: 6682 [2019-09-07 13:41:14,276 INFO L226 Difference]: Without dead ends: 5012 [2019-09-07 13:41:14,284 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 13:41:14,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2019-09-07 13:41:14,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 5012. [2019-09-07 13:41:14,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5012 states. [2019-09-07 13:41:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 7929 transitions. [2019-09-07 13:41:14,454 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 7929 transitions. Word has length 790 [2019-09-07 13:41:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:14,457 INFO L475 AbstractCegarLoop]: Abstraction has 5012 states and 7929 transitions. [2019-09-07 13:41:14,457 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 13:41:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 7929 transitions. [2019-09-07 13:41:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2019-09-07 13:41:14,529 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:14,530 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:14,531 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:14,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:14,533 INFO L82 PathProgramCache]: Analyzing trace with hash 238579364, now seen corresponding path program 1 times [2019-09-07 13:41:14,533 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:14,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:14,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:14,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:14,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:15,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:41:15,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 13:41:15,300 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 13:41:15,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 13:41:15,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 13:41:15,302 INFO L87 Difference]: Start difference. First operand 5012 states and 7929 transitions. Second operand 6 states. [2019-09-07 13:41:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:23,108 INFO L93 Difference]: Finished difference Result 12734 states and 20299 transitions. [2019-09-07 13:41:23,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 13:41:23,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 797 [2019-09-07 13:41:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:23,159 INFO L225 Difference]: With dead ends: 12734 [2019-09-07 13:41:23,163 INFO L226 Difference]: Without dead ends: 7728 [2019-09-07 13:41:23,176 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 13:41:23,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7728 states. [2019-09-07 13:41:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7728 to 7685. [2019-09-07 13:41:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7685 states. [2019-09-07 13:41:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7685 states to 7685 states and 11827 transitions. [2019-09-07 13:41:23,433 INFO L78 Accepts]: Start accepts. Automaton has 7685 states and 11827 transitions. Word has length 797 [2019-09-07 13:41:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:23,434 INFO L475 AbstractCegarLoop]: Abstraction has 7685 states and 11827 transitions. [2019-09-07 13:41:23,434 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 13:41:23,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7685 states and 11827 transitions. [2019-09-07 13:41:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2019-09-07 13:41:23,463 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:23,464 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:23,465 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:23,465 INFO L82 PathProgramCache]: Analyzing trace with hash -2013717453, now seen corresponding path program 1 times [2019-09-07 13:41:23,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:23,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:23,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:23,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:23,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:24,152 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:41:24,152 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 13:41:24,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:24,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:41:24,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:41:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-07 13:41:25,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:41:25,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-07 13:41:25,764 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 13:41:25,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 13:41:25,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-07 13:41:25,765 INFO L87 Difference]: Start difference. First operand 7685 states and 11827 transitions. Second operand 7 states. [2019-09-07 13:41:38,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:38,295 INFO L93 Difference]: Finished difference Result 38606 states and 63409 transitions. [2019-09-07 13:41:38,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-07 13:41:38,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 816 [2019-09-07 13:41:38,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:38,467 INFO L225 Difference]: With dead ends: 38606 [2019-09-07 13:41:38,468 INFO L226 Difference]: Without dead ends: 30927 [2019-09-07 13:41:38,501 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 839 GetRequests, 825 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-09-07 13:41:38,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30927 states. [2019-09-07 13:41:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30927 to 30839. [2019-09-07 13:41:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30839 states. [2019-09-07 13:41:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30839 states to 30839 states and 43463 transitions. [2019-09-07 13:41:39,343 INFO L78 Accepts]: Start accepts. Automaton has 30839 states and 43463 transitions. Word has length 816 [2019-09-07 13:41:39,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:39,343 INFO L475 AbstractCegarLoop]: Abstraction has 30839 states and 43463 transitions. [2019-09-07 13:41:39,344 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 13:41:39,344 INFO L276 IsEmpty]: Start isEmpty. Operand 30839 states and 43463 transitions. [2019-09-07 13:41:39,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2019-09-07 13:41:39,446 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:39,447 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:39,447 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:39,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:39,448 INFO L82 PathProgramCache]: Analyzing trace with hash -614195987, now seen corresponding path program 1 times [2019-09-07 13:41:39,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:39,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:39,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:39,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:39,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 41 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:40,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:41:40,325 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) [2019-09-07 13:41:40,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:41:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:40,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:41:40,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:41:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:41,201 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:41:41,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2019-09-07 13:41:41,205 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-07 13:41:41,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-07 13:41:41,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-09-07 13:41:41,206 INFO L87 Difference]: Start difference. First operand 30839 states and 43463 transitions. Second operand 14 states. [2019-09-07 13:42:32,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:32,673 INFO L93 Difference]: Finished difference Result 138591 states and 245264 transitions. [2019-09-07 13:42:32,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2019-09-07 13:42:32,674 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 828 [2019-09-07 13:42:32,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:33,522 INFO L225 Difference]: With dead ends: 138591 [2019-09-07 13:42:33,523 INFO L226 Difference]: Without dead ends: 107758 [2019-09-07 13:42:35,513 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1045 GetRequests, 917 SyntacticMatches, 1 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6654 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2231, Invalid=14281, Unknown=0, NotChecked=0, Total=16512 [2019-09-07 13:42:35,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107758 states. [2019-09-07 13:42:38,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107758 to 106134. [2019-09-07 13:42:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106134 states. [2019-09-07 13:42:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106134 states to 106134 states and 147551 transitions. [2019-09-07 13:42:39,165 INFO L78 Accepts]: Start accepts. Automaton has 106134 states and 147551 transitions. Word has length 828 [2019-09-07 13:42:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:39,166 INFO L475 AbstractCegarLoop]: Abstraction has 106134 states and 147551 transitions. [2019-09-07 13:42:39,166 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-07 13:42:39,166 INFO L276 IsEmpty]: Start isEmpty. Operand 106134 states and 147551 transitions. [2019-09-07 13:42:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2019-09-07 13:42:39,391 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:39,393 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:39,393 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:39,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1432459479, now seen corresponding path program 1 times [2019-09-07 13:42:39,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:39,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:39,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:39,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:39,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 178 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-09-07 13:42:40,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:40,797 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 13:42:40,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:41,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:42:41,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Stream closed [2019-09-07 13:42:41,979 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:42:41,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:42:41,982 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:42:41,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:42:41,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:42:41,983 INFO L87 Difference]: Start difference. First operand 106134 states and 147551 transitions. Second operand 9 states. [2019-09-07 13:42:55,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:55,923 INFO L93 Difference]: Finished difference Result 254698 states and 369857 transitions. [2019-09-07 13:42:55,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-07 13:42:55,924 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 951 [2019-09-07 13:42:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:56,572 INFO L225 Difference]: With dead ends: 254698 [2019-09-07 13:42:56,572 INFO L226 Difference]: Without dead ends: 149404 [2019-09-07 13:42:56,826 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 973 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2019-09-07 13:42:56,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149404 states. [2019-09-07 13:42:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149404 to 136092. [2019-09-07 13:42:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136092 states. [2019-09-07 13:42:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136092 states to 136092 states and 175389 transitions. [2019-09-07 13:42:59,976 INFO L78 Accepts]: Start accepts. Automaton has 136092 states and 175389 transitions. Word has length 951 [2019-09-07 13:42:59,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:59,980 INFO L475 AbstractCegarLoop]: Abstraction has 136092 states and 175389 transitions. [2019-09-07 13:42:59,980 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:42:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 136092 states and 175389 transitions. [2019-09-07 13:43:00,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1531 [2019-09-07 13:43:00,482 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:00,485 INFO L399 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 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] [2019-09-07 13:43:00,485 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:00,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:00,486 INFO L82 PathProgramCache]: Analyzing trace with hash 779097165, now seen corresponding path program 1 times [2019-09-07 13:43:00,486 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:00,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:00,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:00,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:00,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 730 proven. 108 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2019-09-07 13:43:04,004 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:04,004 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 13:43:04,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:04,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 2080 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:43:04,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2019-09-07 13:43:05,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:43:05,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-09-07 13:43:05,230 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:43:05,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:43:05,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:43:05,230 INFO L87 Difference]: Start difference. First operand 136092 states and 175389 transitions. Second operand 9 states. [2019-09-07 13:43:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:13,764 INFO L93 Difference]: Finished difference Result 290352 states and 386350 transitions. [2019-09-07 13:43:13,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 13:43:13,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1530 [2019-09-07 13:43:13,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:14,209 INFO L225 Difference]: With dead ends: 290352 [2019-09-07 13:43:14,210 INFO L226 Difference]: Without dead ends: 155100 [2019-09-07 13:43:14,392 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1544 GetRequests, 1533 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:43:14,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155100 states. [2019-09-07 13:43:17,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155100 to 153325. [2019-09-07 13:43:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153325 states. [2019-09-07 13:43:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153325 states to 153325 states and 185937 transitions. [2019-09-07 13:43:17,801 INFO L78 Accepts]: Start accepts. Automaton has 153325 states and 185937 transitions. Word has length 1530 [2019-09-07 13:43:17,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:17,802 INFO L475 AbstractCegarLoop]: Abstraction has 153325 states and 185937 transitions. [2019-09-07 13:43:17,802 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:43:17,802 INFO L276 IsEmpty]: Start isEmpty. Operand 153325 states and 185937 transitions. [2019-09-07 13:43:18,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1543 [2019-09-07 13:43:18,041 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:18,042 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:43:18,043 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:18,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:18,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1073948110, now seen corresponding path program 1 times [2019-09-07 13:43:18,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:18,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:18,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:18,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:18,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 753 proven. 425 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-07 13:43:20,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:20,884 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 13:43:20,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:21,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 2012 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:43:21,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:22,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 998 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Forcibly destroying the process [2019-09-07 13:43:24,757 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:43:24,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] The stream was forcibly closed: stdIn [2019-09-07 13:43:24,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:43:24,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:43:24,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:43:24,763 INFO L87 Difference]: Start difference. First operand 153325 states and 185937 transitions. Second operand 13 states. [2019-09-07 13:43:41,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:41,152 INFO L93 Difference]: Finished difference Result 322702 states and 404866 transitions. [2019-09-07 13:43:41,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-07 13:43:41,152 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1542 [2019-09-07 13:43:41,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:41,620 INFO L225 Difference]: With dead ends: 322702 [2019-09-07 13:43:41,620 INFO L226 Difference]: Without dead ends: 170217 [2019-09-07 13:43:41,812 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1620 GetRequests, 1575 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=1574, Unknown=0, NotChecked=0, Total=2070 [2019-09-07 13:43:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170217 states. [2019-09-07 13:43:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170217 to 163778. [2019-09-07 13:43:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163778 states. [2019-09-07 13:43:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163778 states to 163778 states and 199038 transitions. [2019-09-07 13:43:44,395 INFO L78 Accepts]: Start accepts. Automaton has 163778 states and 199038 transitions. Word has length 1542 [2019-09-07 13:43:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:44,396 INFO L475 AbstractCegarLoop]: Abstraction has 163778 states and 199038 transitions. [2019-09-07 13:43:44,396 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:43:44,396 INFO L276 IsEmpty]: Start isEmpty. Operand 163778 states and 199038 transitions. [2019-09-07 13:43:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1752 [2019-09-07 13:43:44,641 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:44,642 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:44,643 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:44,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:44,643 INFO L82 PathProgramCache]: Analyzing trace with hash -798447568, now seen corresponding path program 1 times [2019-09-07 13:43:44,643 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:44,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:44,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:44,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:44,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1876 backedges. 1298 proven. 184 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2019-09-07 13:43:49,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:49,380 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 13:43:49,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:49,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 2362 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-07 13:43:49,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:51,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1876 backedges. 1590 proven. 9 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-09-07 13:43:51,636 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:43:51,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:43:51,639 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:43:51,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:43:51,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:43:51,640 INFO L87 Difference]: Start difference. First operand 163778 states and 199038 transitions. Second operand 9 states. [2019-09-07 13:44:04,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:04,961 INFO L93 Difference]: Finished difference Result 379793 states and 459755 transitions. [2019-09-07 13:44:04,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 13:44:04,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1751 [2019-09-07 13:44:04,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:05,515 INFO L225 Difference]: With dead ends: 379793 [2019-09-07 13:44:05,515 INFO L226 Difference]: Without dead ends: 216855 [2019-09-07 13:44:05,754 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1764 GetRequests, 1754 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-09-07 13:44:06,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216855 states. [2019-09-07 13:44:08,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216855 to 214300. [2019-09-07 13:44:08,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214300 states. [2019-09-07 13:44:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214300 states to 214300 states and 254138 transitions. [2019-09-07 13:44:14,463 INFO L78 Accepts]: Start accepts. Automaton has 214300 states and 254138 transitions. Word has length 1751 [2019-09-07 13:44:14,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:14,464 INFO L475 AbstractCegarLoop]: Abstraction has 214300 states and 254138 transitions. [2019-09-07 13:44:14,464 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:44:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 214300 states and 254138 transitions. [2019-09-07 13:44:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1770 [2019-09-07 13:44:14,748 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:14,749 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:44:14,750 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:14,751 INFO L82 PathProgramCache]: Analyzing trace with hash -925055481, now seen corresponding path program 1 times [2019-09-07 13:44:14,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:14,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:14,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:14,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:14,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 749 proven. 760 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2019-09-07 13:44:18,041 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:44:18,041 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 13:44:18,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:18,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:44:18,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:44:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 978 proven. 0 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (8)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 13:44:19,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:44:19,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2019-09-07 13:44:19,970 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-07 13:44:19,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-07 13:44:19,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-09-07 13:44:19,971 INFO L87 Difference]: Start difference. First operand 214300 states and 254138 transitions. Second operand 8 states. [2019-09-07 13:44:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:31,558 INFO L93 Difference]: Finished difference Result 436119 states and 516711 transitions. [2019-09-07 13:44:31,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-07 13:44:31,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1769 [2019-09-07 13:44:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:32,776 INFO L225 Difference]: With dead ends: 436119 [2019-09-07 13:44:32,776 INFO L226 Difference]: Without dead ends: 222659 [2019-09-07 13:44:32,990 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1793 GetRequests, 1782 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:44:33,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222659 states. [2019-09-07 13:44:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222659 to 214235. [2019-09-07 13:44:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214235 states. [2019-09-07 13:44:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214235 states to 214235 states and 242170 transitions. [2019-09-07 13:44:41,592 INFO L78 Accepts]: Start accepts. Automaton has 214235 states and 242170 transitions. Word has length 1769 [2019-09-07 13:44:41,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:41,593 INFO L475 AbstractCegarLoop]: Abstraction has 214235 states and 242170 transitions. [2019-09-07 13:44:41,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-07 13:44:41,593 INFO L276 IsEmpty]: Start isEmpty. Operand 214235 states and 242170 transitions. [2019-09-07 13:44:41,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3903 [2019-09-07 13:44:41,997 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:41,999 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, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 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, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:44:42,000 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:42,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:42,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1593713015, now seen corresponding path program 1 times [2019-09-07 13:44:42,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:42,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:42,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:42,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:42,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 13249 backedges. 3121 proven. 1419 refuted. 0 times theorem prover too weak. 8709 trivial. 0 not checked. [2019-09-07 13:44:55,132 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:44:55,133 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 13:44:55,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:56,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 5300 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:44:56,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:45:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 13249 backedges. 3791 proven. 2 refuted. 0 times theorem prover too weak. 9456 trivial. 0 not checked. [2019-09-07 13:45:01,337 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:45:01,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:45:01,342 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:45:01,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:45:01,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:45:01,342 INFO L87 Difference]: Start difference. First operand 214235 states and 242170 transitions. Second operand 13 states. [2019-09-07 13:45:01,555 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-07 13:45:01,849 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:45:02,017 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 13:45:02,305 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-07 13:45:03,252 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-07 13:45:06,270 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:45:07,075 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-07 13:45:07,277 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-07 13:45:08,023 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-07 13:45:10,486 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-07 13:45:10,904 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-07 13:45:11,703 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-07 13:45:13,058 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-07 13:45:13,598 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-07 13:45:14,465 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-07 13:45:15,277 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-07 13:45:16,460 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-07 13:45:19,586 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-09-07 13:45:20,500 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-07 13:45:21,969 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-07 13:45:25,207 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-07 13:45:25,379 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-07 13:45:28,689 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-07 13:45:28,868 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 13:45:29,840 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 13:45:30,195 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-07 13:45:31,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:45:31,540 INFO L93 Difference]: Finished difference Result 463434 states and 538643 transitions. [2019-09-07 13:45:31,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-09-07 13:45:31,541 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 3902 [2019-09-07 13:45:31,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:45:32,271 INFO L225 Difference]: With dead ends: 463434 [2019-09-07 13:45:32,272 INFO L226 Difference]: Without dead ends: 250039 [2019-09-07 13:45:32,567 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3980 GetRequests, 3924 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=781, Invalid=2525, Unknown=0, NotChecked=0, Total=3306 [2019-09-07 13:45:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250039 states. [2019-09-07 13:45:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250039 to 240861. [2019-09-07 13:45:35,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240861 states. [2019-09-07 13:45:36,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240861 states to 240861 states and 273583 transitions. [2019-09-07 13:45:36,420 INFO L78 Accepts]: Start accepts. Automaton has 240861 states and 273583 transitions. Word has length 3902 [2019-09-07 13:45:36,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:45:36,421 INFO L475 AbstractCegarLoop]: Abstraction has 240861 states and 273583 transitions. [2019-09-07 13:45:36,421 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:45:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 240861 states and 273583 transitions. [2019-09-07 13:45:42,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3658 [2019-09-07 13:45:42,806 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:45:42,808 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2019-09-07 13:45:42,808 INFO L418 AbstractCegarLoop]: === Iteration 12 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:45:42,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:45:42,809 INFO L82 PathProgramCache]: Analyzing trace with hash -944119744, now seen corresponding path program 1 times [2019-09-07 13:45:42,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:45:42,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:45:42,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:42,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:42,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 9760 backedges. 2934 proven. 585 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2019-09-07 13:45:48,369 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:45:48,369 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 13:45:48,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:49,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 4799 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:45:49,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:45:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9760 backedges. 5545 proven. 2 refuted. 0 times theorem prover too weak. 4213 trivial. 0 not checked. [2019-09-07 13:45:53,880 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:45:53,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 15 [2019-09-07 13:45:53,885 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-07 13:45:53,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-07 13:45:53,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2019-09-07 13:45:53,886 INFO L87 Difference]: Start difference. First operand 240861 states and 273583 transitions. Second operand 15 states. [2019-09-07 13:46:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:46:32,104 INFO L93 Difference]: Finished difference Result 478606 states and 542048 transitions. [2019-09-07 13:46:32,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2019-09-07 13:46:32,104 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 3657 [2019-09-07 13:46:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:46:33,168 INFO L225 Difference]: With dead ends: 478606 [2019-09-07 13:46:33,168 INFO L226 Difference]: Without dead ends: 222585 [2019-09-07 13:46:33,375 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3863 GetRequests, 3747 SyntacticMatches, 3 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5139 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1949, Invalid=11161, Unknown=0, NotChecked=0, Total=13110 [2019-09-07 13:46:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222585 states. [2019-09-07 13:46:35,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222585 to 210594. [2019-09-07 13:46:35,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210594 states. [2019-09-07 13:46:35,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210594 states to 210594 states and 222012 transitions. [2019-09-07 13:46:35,446 INFO L78 Accepts]: Start accepts. Automaton has 210594 states and 222012 transitions. Word has length 3657 [2019-09-07 13:46:35,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:46:35,447 INFO L475 AbstractCegarLoop]: Abstraction has 210594 states and 222012 transitions. [2019-09-07 13:46:35,447 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-07 13:46:35,447 INFO L276 IsEmpty]: Start isEmpty. Operand 210594 states and 222012 transitions. [2019-09-07 13:46:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4553 [2019-09-07 13:46:40,219 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:46:40,221 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, 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, 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, 9, 9, 9, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:46:40,222 INFO L418 AbstractCegarLoop]: === Iteration 13 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:46:40,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:46:40,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1897287577, now seen corresponding path program 1 times [2019-09-07 13:46:40,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:46:40,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:46:40,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:40,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:40,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 17652 backedges. 4136 proven. 1538 refuted. 0 times theorem prover too weak. 11978 trivial. 0 not checked. [2019-09-07 13:46:49,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:46:49,197 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) [2019-09-07 13:46:49,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:46:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:50,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 5804 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-07 13:46:50,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:46:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 17652 backedges. 9547 proven. 2 refuted. 0 times theorem prover too weak. 8103 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 13:46:57,010 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:46:57,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:46:57,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:46:57,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:46:57,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:46:57,016 INFO L87 Difference]: Start difference. First operand 210594 states and 222012 transitions. Second operand 9 states. [2019-09-07 13:47:10,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:47:10,979 INFO L93 Difference]: Finished difference Result 397648 states and 421770 transitions. [2019-09-07 13:47:10,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-07 13:47:10,980 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 4552 [2019-09-07 13:47:10,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:47:11,390 INFO L225 Difference]: With dead ends: 397648 [2019-09-07 13:47:11,390 INFO L226 Difference]: Without dead ends: 186193 [2019-09-07 13:47:11,651 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4614 GetRequests, 4576 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=315, Invalid=1245, Unknown=0, NotChecked=0, Total=1560 [2019-09-07 13:47:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186193 states. [2019-09-07 13:47:14,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186193 to 172856. [2019-09-07 13:47:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172856 states. [2019-09-07 13:47:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172856 states to 172856 states and 178489 transitions. [2019-09-07 13:47:14,331 INFO L78 Accepts]: Start accepts. Automaton has 172856 states and 178489 transitions. Word has length 4552 [2019-09-07 13:47:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:47:14,332 INFO L475 AbstractCegarLoop]: Abstraction has 172856 states and 178489 transitions. [2019-09-07 13:47:14,332 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:47:14,332 INFO L276 IsEmpty]: Start isEmpty. Operand 172856 states and 178489 transitions. [2019-09-07 13:47:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4697 [2019-09-07 13:47:14,643 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:47:14,645 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:14,645 INFO L418 AbstractCegarLoop]: === Iteration 14 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:47:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:47:14,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1392301908, now seen corresponding path program 1 times [2019-09-07 13:47:14,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:47:14,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:47:14,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:47:14,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:47:14,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:47:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:47:17,397 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-07 13:47:17,573 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 13:47:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 20380 backedges. 5907 proven. 8694 refuted. 0 times theorem prover too weak. 5779 trivial. 0 not checked. [2019-09-07 13:47:56,672 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:47:56,672 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) [2019-09-07 13:47:56,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:47:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:47:58,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 6126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:47:58,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:47:58,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 13:48:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20380 backedges. 3859 proven. 2 refuted. 0 times theorem prover too weak. 16519 trivial. 0 not checked. [2019-09-07 13:48:04,928 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:48:04,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 5] total 42 [2019-09-07 13:48:04,934 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-09-07 13:48:04,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-09-07 13:48:04,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1539, Unknown=0, NotChecked=0, Total=1722 [2019-09-07 13:48:04,935 INFO L87 Difference]: Start difference. First operand 172856 states and 178489 transitions. Second operand 42 states. [2019-09-07 13:48:05,185 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-07 13:48:05,740 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2019-09-07 13:48:05,976 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2019-09-07 13:48:06,365 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 38 [2019-09-07 13:48:06,698 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 29 [2019-09-07 13:48:10,814 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 47 [2019-09-07 13:48:11,651 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 42 [2019-09-07 13:48:12,798 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 39 [2019-09-07 13:48:16,854 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-07 13:48:17,227 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 13:48:17,797 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-07 13:48:18,847 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 45 [2019-09-07 13:48:21,063 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-07 13:48:21,566 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 63 [2019-09-07 13:48:21,934 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2019-09-07 13:48:22,302 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2019-09-07 13:48:23,575 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 45 [2019-09-07 13:48:23,938 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-07 13:48:25,233 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 41 [2019-09-07 13:48:25,537 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2019-09-07 13:48:26,370 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 42 [2019-09-07 13:48:29,259 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 33 [2019-09-07 13:48:30,702 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-07 13:48:33,280 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2019-09-07 13:48:33,611 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2019-09-07 13:48:34,079 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 27 [2019-09-07 13:48:34,771 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 48 [2019-09-07 13:48:36,018 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2019-09-07 13:48:36,904 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 35 [2019-09-07 13:48:37,478 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 28 [2019-09-07 13:48:39,506 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 37 [2019-09-07 13:48:41,290 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-07 13:48:41,901 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2019-09-07 13:48:42,637 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-07 13:48:43,598 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2019-09-07 13:48:43,871 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2019-09-07 13:48:44,324 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 32 [2019-09-07 13:48:44,935 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-07 13:48:45,352 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-07 13:48:46,830 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-07 13:48:47,355 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-07 13:48:50,748 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:48:51,066 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 26 [2019-09-07 13:48:51,509 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-07 13:48:51,977 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-07 13:48:52,789 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 29 [2019-09-07 13:48:53,654 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:48:55,643 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 31 [2019-09-07 13:48:56,219 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 33 [2019-09-07 13:48:56,905 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-07 13:48:58,421 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 59 [2019-09-07 13:48:58,846 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-07 13:49:00,627 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2019-09-07 13:49:01,173 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-07 13:49:01,735 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 45 [2019-09-07 13:49:02,042 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2019-09-07 13:49:03,734 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2019-09-07 13:49:04,214 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2019-09-07 13:49:05,045 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 13:49:07,580 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 44 [2019-09-07 13:49:08,094 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 13:49:09,117 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 38 [2019-09-07 13:49:10,551 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 51 [2019-09-07 13:49:10,772 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 28 [2019-09-07 13:49:11,281 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-07 13:49:12,522 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-07 13:49:12,985 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 30 [2019-09-07 13:49:13,889 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:49:14,149 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 13:49:15,305 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 31 [2019-09-07 13:49:15,890 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 39 [2019-09-07 13:49:16,117 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 13:49:17,501 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-07 13:49:18,107 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 88 [2019-09-07 13:49:18,390 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 13:49:18,693 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-07 13:49:19,308 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 44 [2019-09-07 13:49:21,243 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 60 [2019-09-07 13:49:21,909 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:49:22,257 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-07 13:49:22,743 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2019-09-07 13:49:22,996 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 32 [2019-09-07 13:49:23,240 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 35 [2019-09-07 13:49:23,419 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 38 [2019-09-07 13:49:23,855 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 30 [2019-09-07 13:49:24,316 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2019-09-07 13:49:25,030 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2019-09-07 13:49:26,664 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-09-07 13:49:27,357 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-07 13:49:27,625 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 47 [2019-09-07 13:49:28,096 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 32 [2019-09-07 13:49:28,421 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-07 13:49:28,905 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2019-09-07 13:49:29,139 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2019-09-07 13:49:29,595 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-07 13:49:29,832 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 33 [2019-09-07 13:49:30,368 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 42 [2019-09-07 13:49:30,814 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-07 13:49:31,160 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:49:31,588 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2019-09-07 13:49:32,337 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 34 [2019-09-07 13:49:32,821 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 39 [2019-09-07 13:49:33,545 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2019-09-07 13:49:33,791 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-07 13:49:34,226 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 25 [2019-09-07 13:49:34,554 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 46 [2019-09-07 13:49:35,073 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 60 [2019-09-07 13:49:35,410 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 52 [2019-09-07 13:49:36,111 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 38 [2019-09-07 13:49:36,446 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 32 [2019-09-07 13:49:36,819 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-07 13:49:37,132 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2019-09-07 13:49:37,725 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-07 13:49:38,370 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-07 13:49:38,551 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 32 [2019-09-07 13:49:39,113 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 31 [2019-09-07 13:49:39,363 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 35 [2019-09-07 13:49:39,573 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2019-09-07 13:49:40,028 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2019-09-07 13:49:40,527 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2019-09-07 13:49:41,379 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2019-09-07 13:49:41,622 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 47 [2019-09-07 13:49:41,818 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 38 [2019-09-07 13:49:42,117 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 28 [2019-09-07 13:49:42,591 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-07 13:49:43,072 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 39 [2019-09-07 13:49:43,388 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2019-09-07 13:49:43,895 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2019-09-07 13:49:44,421 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 41 [2019-09-07 13:49:44,969 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 33 [2019-09-07 13:49:45,352 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 41 [2019-09-07 13:49:45,677 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2019-09-07 13:49:45,976 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 38 [2019-09-07 13:49:46,696 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 37 [2019-09-07 13:49:47,271 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-07 13:49:47,585 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 42 [2019-09-07 13:49:48,496 WARN L188 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-09-07 13:49:48,788 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2019-09-07 13:49:49,075 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 38 [2019-09-07 13:49:49,494 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2019-09-07 13:49:49,865 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2019-09-07 13:49:50,272 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2019-09-07 13:49:51,052 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 38 [2019-09-07 13:49:51,729 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 36 [2019-09-07 13:49:52,688 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2019-09-07 13:49:52,967 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2019-09-07 13:49:53,346 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-07 13:49:53,933 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 39 [2019-09-07 13:49:54,262 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-07 13:49:54,853 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 40 [2019-09-07 13:49:55,503 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2019-09-07 13:49:55,797 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 34 [2019-09-07 13:49:56,368 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 36 [2019-09-07 13:49:56,637 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 40 [2019-09-07 13:49:57,906 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2019-09-07 13:49:58,230 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:49:58,718 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2019-09-07 13:49:58,975 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 53 [2019-09-07 13:49:59,382 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2019-09-07 13:49:59,882 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 62 [2019-09-07 13:50:00,149 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 52 [2019-09-07 13:50:00,553 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 46 [2019-09-07 13:50:00,785 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 31 [2019-09-07 13:50:01,031 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 42 [2019-09-07 13:50:01,608 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 45 [2019-09-07 13:50:01,876 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 13:50:02,276 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-07 13:50:02,793 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2019-09-07 13:50:03,169 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-07 13:50:03,540 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 13:50:03,951 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-07 13:50:04,200 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-07 13:50:04,631 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2019-09-07 13:50:04,899 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-07 13:50:05,279 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-07 13:50:05,744 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 57 [2019-09-07 13:50:05,998 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 45 [2019-09-07 13:50:06,334 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 13:50:06,781 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-07 13:50:07,144 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-07 13:50:07,616 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 92 [2019-09-07 13:50:08,132 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 49 [2019-09-07 13:50:08,654 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-07 13:50:08,969 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-07 13:50:09,195 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 31 [2019-09-07 13:50:09,524 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:50:09,744 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 27 [2019-09-07 13:50:09,965 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 30 [2019-09-07 13:50:10,149 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 33 [2019-09-07 13:50:10,674 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2019-09-07 13:50:10,930 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2019-09-07 13:50:11,098 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-07 13:50:11,335 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 38 [2019-09-07 13:50:11,704 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2019-09-07 13:50:11,978 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 33 [2019-09-07 13:50:12,270 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 30 [2019-09-07 13:50:12,491 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 36 [2019-09-07 13:50:13,237 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-07 13:50:13,566 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 36 [2019-09-07 13:50:13,774 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 35 [2019-09-07 13:50:14,126 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 56 [2019-09-07 13:50:14,342 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 41 [2019-09-07 13:50:14,609 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 35 [2019-09-07 13:50:14,872 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 38 [2019-09-07 13:50:15,495 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2019-09-07 13:50:15,827 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2019-09-07 13:50:16,000 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 39 [2019-09-07 13:50:17,132 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 52 [2019-09-07 13:50:17,333 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-07 13:50:20,056 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2019-09-07 13:50:20,504 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:50:21,598 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:50:22,031 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-07 13:50:22,354 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2019-09-07 13:50:22,748 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2019-09-07 13:50:22,951 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 40 [2019-09-07 13:50:23,593 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 37 [2019-09-07 13:50:24,296 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 41 [2019-09-07 13:50:24,522 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 50 [2019-09-07 13:50:25,623 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 37 [2019-09-07 13:50:25,856 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 29 [2019-09-07 13:50:27,363 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 46 [2019-09-07 13:50:27,695 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2019-09-07 13:50:27,884 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 38 [2019-09-07 13:50:28,257 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 21 [2019-09-07 13:50:28,924 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 17 [2019-09-07 13:50:29,196 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 31 [2019-09-07 13:50:29,789 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 26 [2019-09-07 13:50:30,203 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 44 [2019-09-07 13:50:30,521 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 22 [2019-09-07 13:50:35,467 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 47 [2019-09-07 13:50:35,875 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-09-07 13:50:39,677 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2019-09-07 13:50:45,554 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 46 [2019-09-07 13:50:47,520 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 59 [2019-09-07 13:50:49,669 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-07 13:50:50,040 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 13:50:50,374 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-07 13:50:51,208 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 25 [2019-09-07 13:50:58,054 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 24 [2019-09-07 13:50:59,706 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2019-09-07 13:51:00,127 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 50 [2019-09-07 13:51:00,683 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 31 [2019-09-07 13:51:01,133 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 46 [2019-09-07 13:51:01,811 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 29 [2019-09-07 13:51:01,975 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 37 [2019-09-07 13:51:04,098 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 31 [2019-09-07 13:51:05,654 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 30 [2019-09-07 13:51:11,888 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2019-09-07 13:51:12,035 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 31 [2019-09-07 13:51:18,114 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 42 [2019-09-07 13:51:18,550 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2019-09-07 13:51:20,481 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2019-09-07 13:51:21,178 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 36 [2019-09-07 13:51:23,704 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-07 13:51:26,036 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-07 13:51:26,454 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-07 13:51:26,702 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 39 [2019-09-07 13:51:27,195 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-07 13:51:27,826 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 38 [2019-09-07 13:51:28,143 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 34 [2019-09-07 13:51:30,030 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 36 [2019-09-07 13:51:33,779 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-07 13:51:34,192 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2019-09-07 13:51:36,729 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-07 13:51:37,594 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2019-09-07 13:51:39,188 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 13:51:40,177 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 20 [2019-09-07 13:51:40,460 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 24 [2019-09-07 13:51:41,505 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-07 13:51:41,878 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2019-09-07 13:51:43,035 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-07 13:51:43,527 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-07 13:51:43,808 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 19 [2019-09-07 13:51:45,900 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 35 [2019-09-07 13:51:46,642 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 27 [2019-09-07 13:51:47,113 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2019-09-07 13:51:47,539 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-07 13:51:48,461 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2019-09-07 13:51:48,864 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 24 [2019-09-07 13:51:49,177 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-07 13:51:51,031 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 13:51:51,727 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 20 [2019-09-07 13:51:53,101 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2019-09-07 13:51:57,063 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 37 [2019-09-07 13:51:57,872 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 24 [2019-09-07 13:51:58,452 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2019-09-07 13:52:00,558 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2019-09-07 13:52:02,188 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2019-09-07 13:52:05,807 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2019-09-07 13:52:07,841 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2019-09-07 13:52:09,106 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 19 [2019-09-07 13:52:10,346 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-07 13:52:10,719 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2019-09-07 13:52:11,687 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 22 [2019-09-07 13:52:12,218 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-07 13:52:13,503 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 44 [2019-09-07 13:52:17,090 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2019-09-07 13:52:17,626 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 50 [2019-09-07 13:52:18,232 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 26 [2019-09-07 13:52:20,571 WARN L188 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2019-09-07 13:52:21,257 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-07 13:52:21,498 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 24 [2019-09-07 13:52:24,124 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2019-09-07 13:52:25,277 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-07 13:52:25,939 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2019-09-07 13:52:27,601 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:52:29,660 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2019-09-07 13:52:31,020 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2019-09-07 13:52:33,371 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 39 [2019-09-07 13:52:34,662 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:52:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:52:38,464 INFO L93 Difference]: Finished difference Result 456480 states and 486625 transitions. [2019-09-07 13:52:38,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2019-09-07 13:52:38,465 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 4696 [2019-09-07 13:52:38,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:52:39,614 INFO L225 Difference]: With dead ends: 456480 [2019-09-07 13:52:39,614 INFO L226 Difference]: Without dead ends: 284464 [2019-09-07 13:52:39,755 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5383 GetRequests, 4882 SyntacticMatches, 18 SemanticMatches, 483 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108427 ImplicationChecksByTransitivity, 94.5s TimeCoverageRelationStatistics Valid=23682, Invalid=211058, Unknown=0, NotChecked=0, Total=234740 [2019-09-07 13:52:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284464 states. [2019-09-07 13:52:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284464 to 271568. [2019-09-07 13:52:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271568 states. [2019-09-07 13:52:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271568 states to 271568 states and 285555 transitions. [2019-09-07 13:52:43,725 INFO L78 Accepts]: Start accepts. Automaton has 271568 states and 285555 transitions. Word has length 4696 [2019-09-07 13:52:43,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:52:43,726 INFO L475 AbstractCegarLoop]: Abstraction has 271568 states and 285555 transitions. [2019-09-07 13:52:43,726 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-09-07 13:52:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 271568 states and 285555 transitions. [2019-09-07 13:52:44,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5147 [2019-09-07 13:52:44,277 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:52:44,279 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 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, 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, 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, 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, 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, 10, 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, 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, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:44,280 INFO L418 AbstractCegarLoop]: === Iteration 15 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:52:44,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:52:44,281 INFO L82 PathProgramCache]: Analyzing trace with hash -182170335, now seen corresponding path program 1 times [2019-09-07 13:52:44,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:52:44,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:52:44,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:52:44,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:52:44,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:52:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat