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_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 13:41:33,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 13:41:33,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 13:41:33,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 13:41:33,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 13:41:33,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 13:41:33,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 13:41:33,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 13:41:33,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 13:41:33,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 13:41:33,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 13:41:33,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 13:41:33,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 13:41:33,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 13:41:33,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 13:41:33,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 13:41:33,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 13:41:33,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 13:41:33,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 13:41:33,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 13:41:33,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 13:41:33,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 13:41:33,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 13:41:33,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 13:41:33,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 13:41:33,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 13:41:33,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 13:41:33,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 13:41:33,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 13:41:33,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 13:41:33,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 13:41:33,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 13:41:33,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 13:41:33,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 13:41:33,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 13:41:33,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 13:41:33,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 13:41:33,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 13:41:33,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 13:41:33,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 13:41:33,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 13:41:33,888 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 13:41:33,916 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 13:41:33,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 13:41:33,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 13:41:33,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 13:41:33,920 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 13:41:33,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 13:41:33,921 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 13:41:33,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 13:41:33,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 13:41:33,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 13:41:33,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 13:41:33,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 13:41:33,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 13:41:33,924 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 13:41:33,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 13:41:33,924 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 13:41:33,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 13:41:33,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 13:41:33,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 13:41:33,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 13:41:33,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 13:41:33,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 13:41:33,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 13:41:33,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 13:41:33,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 13:41:33,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 13:41:33,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 13:41:33,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 13:41:33,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 13:41:33,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 13:41:33,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 13:41:33,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 13:41:33,990 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 13:41:33,991 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 13:41:33,991 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label12.c [2019-09-07 13:41:34,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63fc3727/1b29c2f9186b485c85568d9c759cf7a7/FLAGeb58eef44 [2019-09-07 13:41:34,912 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 13:41:34,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label12.c [2019-09-07 13:41:34,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63fc3727/1b29c2f9186b485c85568d9c759cf7a7/FLAGeb58eef44 [2019-09-07 13:41:35,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63fc3727/1b29c2f9186b485c85568d9c759cf7a7 [2019-09-07 13:41:35,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 13:41:35,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 13:41:35,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 13:41:35,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 13:41:35,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 13:41:35,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:41:35" (1/1) ... [2019-09-07 13:41:35,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd7f237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:35, skipping insertion in model container [2019-09-07 13:41:35,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:41:35" (1/1) ... [2019-09-07 13:41:35,448 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 13:41:35,636 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 13:41:37,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:41:37,304 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 13:41:38,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:41:38,048 INFO L192 MainTranslator]: Completed translation [2019-09-07 13:41:38,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38 WrapperNode [2019-09-07 13:41:38,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 13:41:38,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 13:41:38,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 13:41:38,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 13:41:38,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (1/1) ... [2019-09-07 13:41:38,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (1/1) ... [2019-09-07 13:41:38,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (1/1) ... [2019-09-07 13:41:38,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (1/1) ... [2019-09-07 13:41:38,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (1/1) ... [2019-09-07 13:41:38,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (1/1) ... [2019-09-07 13:41:38,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (1/1) ... [2019-09-07 13:41:38,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 13:41:38,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 13:41:38,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 13:41:38,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 13:41:38,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (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 13:41:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 13:41:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 13:41:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 13:41:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 13:41:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 13:41:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 13:41:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 13:41:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 13:41:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 13:41:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 13:41:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 13:41:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 13:41:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 13:41:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 13:41:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 13:41:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 13:41:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 13:41:42,852 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 13:41:42,852 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 13:41:42,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:41:42 BoogieIcfgContainer [2019-09-07 13:41:42,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 13:41:42,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 13:41:42,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 13:41:42,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 13:41:42,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 01:41:35" (1/3) ... [2019-09-07 13:41:42,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35297ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:41:42, skipping insertion in model container [2019-09-07 13:41:42,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:38" (2/3) ... [2019-09-07 13:41:42,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35297ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:41:42, skipping insertion in model container [2019-09-07 13:41:42,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:41:42" (3/3) ... [2019-09-07 13:41:42,863 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label12.c [2019-09-07 13:41:42,873 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 13:41:42,883 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 13:41:42,901 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 13:41:42,944 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 13:41:42,945 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 13:41:42,945 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 13:41:42,946 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 13:41:42,946 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 13:41:42,946 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 13:41:42,946 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 13:41:42,946 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 13:41:42,947 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 13:41:42,992 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-09-07 13:41:43,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2019-09-07 13:41:43,051 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:43,054 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] [2019-09-07 13:41:43,056 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:43,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:43,063 INFO L82 PathProgramCache]: Analyzing trace with hash -930448525, now seen corresponding path program 1 times [2019-09-07 13:41:43,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:43,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:43,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:43,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:43,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:44,982 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 13:41:44,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:41:44,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 13:41:44,991 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 13:41:45,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 13:41:45,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:41:45,009 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 3 states. [2019-09-07 13:41:50,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:50,064 INFO L93 Difference]: Finished difference Result 2644 states and 5099 transitions. [2019-09-07 13:41:50,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 13:41:50,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 768 [2019-09-07 13:41:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:50,111 INFO L225 Difference]: With dead ends: 2644 [2019-09-07 13:41:50,111 INFO L226 Difference]: Without dead ends: 1676 [2019-09-07 13:41:50,122 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:41:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2019-09-07 13:41:50,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2019-09-07 13:41:50,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2019-09-07 13:41:50,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 3004 transitions. [2019-09-07 13:41:50,291 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 3004 transitions. Word has length 768 [2019-09-07 13:41:50,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:50,294 INFO L475 AbstractCegarLoop]: Abstraction has 1676 states and 3004 transitions. [2019-09-07 13:41:50,294 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 13:41:50,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 3004 transitions. [2019-09-07 13:41:50,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2019-09-07 13:41:50,378 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:50,379 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:50,379 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:50,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:50,380 INFO L82 PathProgramCache]: Analyzing trace with hash -549702780, now seen corresponding path program 1 times [2019-09-07 13:41:50,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:50,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:50,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:50,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:50,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-07 13:41:51,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:41:51,648 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) [2019-09-07 13:41:51,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:41:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:51,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:41:52,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:41:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:52,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:41:52,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-09-07 13:41:52,839 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 13:41:52,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 13:41:52,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-07 13:41:52,840 INFO L87 Difference]: Start difference. First operand 1676 states and 3004 transitions. Second operand 5 states. [2019-09-07 13:42:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:02,810 INFO L93 Difference]: Finished difference Result 8448 states and 15520 transitions. [2019-09-07 13:42:02,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-07 13:42:02,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 787 [2019-09-07 13:42:02,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:02,852 INFO L225 Difference]: With dead ends: 8448 [2019-09-07 13:42:02,852 INFO L226 Difference]: Without dead ends: 6778 [2019-09-07 13:42:02,858 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 791 SyntacticMatches, 7 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 13:42:02,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2019-09-07 13:42:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 6726. [2019-09-07 13:42:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6726 states. [2019-09-07 13:42:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6726 states to 6726 states and 10910 transitions. [2019-09-07 13:42:03,033 INFO L78 Accepts]: Start accepts. Automaton has 6726 states and 10910 transitions. Word has length 787 [2019-09-07 13:42:03,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:03,035 INFO L475 AbstractCegarLoop]: Abstraction has 6726 states and 10910 transitions. [2019-09-07 13:42:03,035 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 13:42:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6726 states and 10910 transitions. [2019-09-07 13:42:03,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2019-09-07 13:42:03,058 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:03,059 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:03,060 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:03,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:03,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1288075584, now seen corresponding path program 1 times [2019-09-07 13:42:03,060 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:03,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:03,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:03,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:03,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:42:03,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:42:03,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-07 13:42:03,779 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 13:42:03,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 13:42:03,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-07 13:42:03,780 INFO L87 Difference]: Start difference. First operand 6726 states and 10910 transitions. Second operand 7 states. [2019-09-07 13:42:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:10,450 INFO L93 Difference]: Finished difference Result 17091 states and 28173 transitions. [2019-09-07 13:42:10,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-07 13:42:10,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 789 [2019-09-07 13:42:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:10,511 INFO L225 Difference]: With dead ends: 17091 [2019-09-07 13:42:10,512 INFO L226 Difference]: Without dead ends: 10371 [2019-09-07 13:42:10,529 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-09-07 13:42:10,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2019-09-07 13:42:10,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 10279. [2019-09-07 13:42:10,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10279 states. [2019-09-07 13:42:10,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10279 states to 10279 states and 16326 transitions. [2019-09-07 13:42:10,827 INFO L78 Accepts]: Start accepts. Automaton has 10279 states and 16326 transitions. Word has length 789 [2019-09-07 13:42:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:10,828 INFO L475 AbstractCegarLoop]: Abstraction has 10279 states and 16326 transitions. [2019-09-07 13:42:10,828 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 13:42:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 10279 states and 16326 transitions. [2019-09-07 13:42:10,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2019-09-07 13:42:10,860 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:10,861 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:10,861 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:10,862 INFO L82 PathProgramCache]: Analyzing trace with hash -246870039, now seen corresponding path program 1 times [2019-09-07 13:42:10,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:10,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:10,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:10,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:10,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:42:11,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:11,563 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 13:42:11,580 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 13:42:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:11,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:42:11,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:42:12,570 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:42:12,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:42:12,574 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:42:12,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:42:12,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:42:12,575 INFO L87 Difference]: Start difference. First operand 10279 states and 16326 transitions. Second operand 9 states. [2019-09-07 13:42:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:24,881 INFO L93 Difference]: Finished difference Result 50640 states and 86117 transitions. [2019-09-07 13:42:24,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-07 13:42:24,882 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 804 [2019-09-07 13:42:24,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:25,064 INFO L225 Difference]: With dead ends: 50640 [2019-09-07 13:42:25,064 INFO L226 Difference]: Without dead ends: 40367 [2019-09-07 13:42:25,121 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 811 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=821, Unknown=0, NotChecked=0, Total=1056 [2019-09-07 13:42:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40367 states. [2019-09-07 13:42:26,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40367 to 35141. [2019-09-07 13:42:26,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35141 states. [2019-09-07 13:42:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35141 states to 35141 states and 49479 transitions. [2019-09-07 13:42:27,038 INFO L78 Accepts]: Start accepts. Automaton has 35141 states and 49479 transitions. Word has length 804 [2019-09-07 13:42:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:27,039 INFO L475 AbstractCegarLoop]: Abstraction has 35141 states and 49479 transitions. [2019-09-07 13:42:27,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:42:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 35141 states and 49479 transitions. [2019-09-07 13:42:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2019-09-07 13:42:27,137 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:27,138 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:27,138 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:27,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:27,139 INFO L82 PathProgramCache]: Analyzing trace with hash -859382856, now seen corresponding path program 1 times [2019-09-07 13:42:27,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:27,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:27,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:27,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:27,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 131 proven. 70 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-07 13:42:28,251 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:28,251 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 13:42:28,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:28,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:42:28,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-09-07 13:42:29,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:42:29,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-09-07 13:42:29,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:42:29,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:42:29,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:42:29,048 INFO L87 Difference]: Start difference. First operand 35141 states and 49479 transitions. Second operand 9 states. [2019-09-07 13:42:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:36,413 INFO L93 Difference]: Finished difference Result 79071 states and 114423 transitions. [2019-09-07 13:42:36,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 13:42:36,414 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 908 [2019-09-07 13:42:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:36,581 INFO L225 Difference]: With dead ends: 79071 [2019-09-07 13:42:36,582 INFO L226 Difference]: Without dead ends: 43936 [2019-09-07 13:42:36,664 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 911 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 13:42:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43936 states. [2019-09-07 13:42:37,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43936 to 42920. [2019-09-07 13:42:37,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42920 states. [2019-09-07 13:42:37,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42920 states to 42920 states and 56529 transitions. [2019-09-07 13:42:37,516 INFO L78 Accepts]: Start accepts. Automaton has 42920 states and 56529 transitions. Word has length 908 [2019-09-07 13:42:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:37,517 INFO L475 AbstractCegarLoop]: Abstraction has 42920 states and 56529 transitions. [2019-09-07 13:42:37,517 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:42:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 42920 states and 56529 transitions. [2019-09-07 13:42:37,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2019-09-07 13:42:37,591 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:37,591 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:42:37,592 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:37,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1576296875, now seen corresponding path program 1 times [2019-09-07 13:42:37,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:37,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:37,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:37,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:37,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 279 proven. 165 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-07 13:42:39,644 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:39,645 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 13:42:39,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:42:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:39,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:42:40,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2019-09-07 13:42:40,523 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:42:40,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:42:40,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:42:40,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:42:40,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:42:40,526 INFO L87 Difference]: Start difference. First operand 42920 states and 56529 transitions. Second operand 9 states. [2019-09-07 13:42:57,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:57,744 INFO L93 Difference]: Finished difference Result 139902 states and 193553 transitions. [2019-09-07 13:42:57,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-07 13:42:57,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1032 [2019-09-07 13:42:57,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:58,153 INFO L225 Difference]: With dead ends: 139902 [2019-09-07 13:42:58,154 INFO L226 Difference]: Without dead ends: 96988 [2019-09-07 13:42:58,223 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1055 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2019-09-07 13:42:58,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96988 states. [2019-09-07 13:42:59,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96988 to 91614. [2019-09-07 13:42:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91614 states. [2019-09-07 13:43:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91614 states to 91614 states and 116365 transitions. [2019-09-07 13:43:00,188 INFO L78 Accepts]: Start accepts. Automaton has 91614 states and 116365 transitions. Word has length 1032 [2019-09-07 13:43:00,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:00,189 INFO L475 AbstractCegarLoop]: Abstraction has 91614 states and 116365 transitions. [2019-09-07 13:43:00,189 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:43:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 91614 states and 116365 transitions. [2019-09-07 13:43:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1303 [2019-09-07 13:43:00,391 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:00,392 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2019-09-07 13:43:00,392 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:00,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2018220011, now seen corresponding path program 1 times [2019-09-07 13:43:00,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:00,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:00,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:00,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:00,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 531 proven. 557 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-09-07 13:43:02,037 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:02,037 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 13:43:02,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:02,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:43:02,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 797 proven. 2 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2019-09-07 13:43:04,059 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:43:04,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:43:04,061 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:43:04,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:43:04,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:43:04,062 INFO L87 Difference]: Start difference. First operand 91614 states and 116365 transitions. Second operand 13 states. [2019-09-07 13:43:21,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:21,194 INFO L93 Difference]: Finished difference Result 199773 states and 258793 transitions. [2019-09-07 13:43:21,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-09-07 13:43:21,194 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1302 [2019-09-07 13:43:21,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:21,515 INFO L225 Difference]: With dead ends: 199773 [2019-09-07 13:43:21,516 INFO L226 Difference]: Without dead ends: 108165 [2019-09-07 13:43:21,684 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1334 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2019-09-07 13:43:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108165 states. [2019-09-07 13:43:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108165 to 102001. [2019-09-07 13:43:23,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102001 states. [2019-09-07 13:43:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102001 states to 102001 states and 126363 transitions. [2019-09-07 13:43:23,983 INFO L78 Accepts]: Start accepts. Automaton has 102001 states and 126363 transitions. Word has length 1302 [2019-09-07 13:43:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:23,984 INFO L475 AbstractCegarLoop]: Abstraction has 102001 states and 126363 transitions. [2019-09-07 13:43:23,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:43:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 102001 states and 126363 transitions. [2019-09-07 13:43:24,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2019-09-07 13:43:24,215 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:24,217 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:24,217 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:24,218 INFO L82 PathProgramCache]: Analyzing trace with hash -997108733, now seen corresponding path program 1 times [2019-09-07 13:43:24,219 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:24,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:24,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:24,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:24,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 308 proven. 640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:43:28,872 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:28,872 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 13:43:28,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:29,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:43:29,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:30,200 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2019-09-07 13:43:30,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:43:30,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2019-09-07 13:43:30,207 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:43:30,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:43:30,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:43:30,208 INFO L87 Difference]: Start difference. First operand 102001 states and 126363 transitions. Second operand 9 states. [2019-09-07 13:43:57,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:57,268 INFO L93 Difference]: Finished difference Result 230031 states and 284169 transitions. [2019-09-07 13:43:57,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-07 13:43:57,269 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1415 [2019-09-07 13:43:57,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:57,704 INFO L225 Difference]: With dead ends: 230031 [2019-09-07 13:43:57,704 INFO L226 Difference]: Without dead ends: 128036 [2019-09-07 13:43:57,897 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1441 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=691, Unknown=0, NotChecked=0, Total=930 [2019-09-07 13:43:58,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128036 states. [2019-09-07 13:44:00,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128036 to 112909. [2019-09-07 13:44:00,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112909 states. [2019-09-07 13:44:00,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112909 states to 112909 states and 134472 transitions. [2019-09-07 13:44:00,403 INFO L78 Accepts]: Start accepts. Automaton has 112909 states and 134472 transitions. Word has length 1415 [2019-09-07 13:44:00,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:00,406 INFO L475 AbstractCegarLoop]: Abstraction has 112909 states and 134472 transitions. [2019-09-07 13:44:00,406 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:44:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 112909 states and 134472 transitions. [2019-09-07 13:44:00,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1419 [2019-09-07 13:44:00,607 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:00,609 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:44:00,609 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:00,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:00,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1037315830, now seen corresponding path program 1 times [2019-09-07 13:44:00,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:00,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:00,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:00,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:00,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 919 proven. 2 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2019-09-07 13:44:02,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:44:02,683 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 13:44:02,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:03,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:44:03,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:44:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 919 proven. 2 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2019-09-07 13:44:05,541 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:44:05,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:44:05,543 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:44:05,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:44:05,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:44:05,544 INFO L87 Difference]: Start difference. First operand 112909 states and 134472 transitions. Second operand 9 states. [2019-09-07 13:44:18,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:18,636 INFO L93 Difference]: Finished difference Result 246915 states and 300505 transitions. [2019-09-07 13:44:18,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-07 13:44:18,641 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1418 [2019-09-07 13:44:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:18,927 INFO L225 Difference]: With dead ends: 246915 [2019-09-07 13:44:18,927 INFO L226 Difference]: Without dead ends: 134012 [2019-09-07 13:44:19,008 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1437 GetRequests, 1423 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-09-07 13:44:19,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134012 states. [2019-09-07 13:44:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134012 to 129749. [2019-09-07 13:44:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129749 states. [2019-09-07 13:44:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129749 states to 129749 states and 155699 transitions. [2019-09-07 13:44:20,787 INFO L78 Accepts]: Start accepts. Automaton has 129749 states and 155699 transitions. Word has length 1418 [2019-09-07 13:44:20,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:20,788 INFO L475 AbstractCegarLoop]: Abstraction has 129749 states and 155699 transitions. [2019-09-07 13:44:20,788 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:44:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 129749 states and 155699 transitions. [2019-09-07 13:44:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3982 [2019-09-07 13:44:21,221 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:21,223 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:44:21,223 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:21,224 INFO L82 PathProgramCache]: Analyzing trace with hash -848309706, now seen corresponding path program 1 times [2019-09-07 13:44:21,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:21,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:21,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:21,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:21,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 12986 backedges. 3203 proven. 2211 refuted. 0 times theorem prover too weak. 7572 trivial. 0 not checked. [2019-09-07 13:44:31,812 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:44:31,812 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 13:44:31,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:32,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 5272 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:44:32,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:44:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12986 backedges. 6186 proven. 2 refuted. 0 times theorem prover too weak. 6798 trivial. 0 not checked. [2019-09-07 13:44:37,867 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:44:37,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:44:37,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:44:37,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:44:37,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:44:37,872 INFO L87 Difference]: Start difference. First operand 129749 states and 155699 transitions. Second operand 9 states. [2019-09-07 13:44:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:54,944 INFO L93 Difference]: Finished difference Result 293194 states and 370594 transitions. [2019-09-07 13:44:54,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-09-07 13:44:54,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 3981 [2019-09-07 13:44:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:55,380 INFO L225 Difference]: With dead ends: 293194 [2019-09-07 13:44:55,380 INFO L226 Difference]: Without dead ends: 155310 [2019-09-07 13:44:55,609 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4072 GetRequests, 4020 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=544, Invalid=2318, Unknown=0, NotChecked=0, Total=2862 [2019-09-07 13:44:55,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155310 states. [2019-09-07 13:44:58,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155310 to 151045. [2019-09-07 13:44:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151045 states. [2019-09-07 13:44:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151045 states to 151045 states and 165436 transitions. [2019-09-07 13:44:58,400 INFO L78 Accepts]: Start accepts. Automaton has 151045 states and 165436 transitions. Word has length 3981 [2019-09-07 13:44:58,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:58,401 INFO L475 AbstractCegarLoop]: Abstraction has 151045 states and 165436 transitions. [2019-09-07 13:44:58,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:44:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 151045 states and 165436 transitions. [2019-09-07 13:44:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5282 [2019-09-07 13:44:58,768 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:58,770 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 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, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:58,771 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:58,772 INFO L82 PathProgramCache]: Analyzing trace with hash 740268646, now seen corresponding path program 1 times [2019-09-07 13:44:58,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:58,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:58,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:58,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:58,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:24,015 INFO L134 CoverageAnalysis]: Checked inductivity of 22679 backedges. 4892 proven. 3039 refuted. 0 times theorem prover too weak. 14748 trivial. 0 not checked. [2019-09-07 13:45:24,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:45:24,016 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 13:45:24,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:25,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 6910 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:45:25,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:45:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 22679 backedges. 8883 proven. 4 refuted. 0 times theorem prover too weak. 13792 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (10)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 13:45:34,607 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:45:34,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 5] total 21 [2019-09-07 13:45:34,616 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-07 13:45:34,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-07 13:45:34,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2019-09-07 13:45:34,618 INFO L87 Difference]: Start difference. First operand 151045 states and 165436 transitions. Second operand 21 states. [2019-09-07 13:45:34,982 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-07 13:45:35,158 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-09-07 13:45:35,748 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-07 13:45:36,204 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-07 13:45:36,379 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-07 13:45:36,718 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-07 13:45:37,310 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-07 13:45:38,931 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2019-09-07 13:45:39,706 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2019-09-07 13:45:41,152 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2019-09-07 13:45:41,889 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2019-09-07 13:45:42,905 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-07 13:45:44,081 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2019-09-07 13:45:45,668 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-07 13:45:47,233 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2019-09-07 13:45:48,518 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2019-09-07 13:45:49,126 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2019-09-07 13:45:51,458 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2019-09-07 13:45:52,684 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 44 [2019-09-07 13:45:53,425 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2019-09-07 13:45:53,983 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 46 [2019-09-07 13:45:56,217 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2019-09-07 13:45:57,622 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2019-09-07 13:45:58,787 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-07 13:45:58,929 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-07 13:45:59,380 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2019-09-07 13:45:59,699 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2019-09-07 13:46:00,395 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 50 [2019-09-07 13:46:01,010 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2019-09-07 13:46:02,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:46:02,142 INFO L93 Difference]: Finished difference Result 303423 states and 341475 transitions. [2019-09-07 13:46:02,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-09-07 13:46:02,142 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 5281 [2019-09-07 13:46:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:46:02,523 INFO L225 Difference]: With dead ends: 303423 [2019-09-07 13:46:02,523 INFO L226 Difference]: Without dead ends: 153218 [2019-09-07 13:46:02,671 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5389 GetRequests, 5317 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1032, Invalid=4370, Unknown=0, NotChecked=0, Total=5402 [2019-09-07 13:46:02,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153218 states. [2019-09-07 13:46:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153218 to 151035. [2019-09-07 13:46:04,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151035 states. [2019-09-07 13:46:04,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151035 states to 151035 states and 161374 transitions. [2019-09-07 13:46:04,765 INFO L78 Accepts]: Start accepts. Automaton has 151035 states and 161374 transitions. Word has length 5281 [2019-09-07 13:46:04,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:46:04,766 INFO L475 AbstractCegarLoop]: Abstraction has 151035 states and 161374 transitions. [2019-09-07 13:46:04,766 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-07 13:46:04,766 INFO L276 IsEmpty]: Start isEmpty. Operand 151035 states and 161374 transitions. [2019-09-07 13:46:08,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4581 [2019-09-07 13:46:08,257 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:46:08,259 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:08,259 INFO L418 AbstractCegarLoop]: === Iteration 12 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:46:08,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:46:08,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1257011095, now seen corresponding path program 1 times [2019-09-07 13:46:08,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:46:08,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:46:08,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:08,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:08,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14650 backedges. 3825 proven. 453 refuted. 0 times theorem prover too weak. 10372 trivial. 0 not checked. [2019-09-07 13:46:15,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:46:15,570 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:46:15,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:16,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 5899 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:46:16,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:46:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 14650 backedges. 6914 proven. 2 refuted. 0 times theorem prover too weak. 7734 trivial. 0 not checked. [2019-09-07 13:46:23,699 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:46:23,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2019-09-07 13:46:23,706 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-07 13:46:23,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-07 13:46:23,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-07 13:46:23,706 INFO L87 Difference]: Start difference. First operand 151035 states and 161374 transitions. Second operand 10 states. [2019-09-07 13:46:35,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:46:35,648 INFO L93 Difference]: Finished difference Result 296804 states and 316343 transitions. [2019-09-07 13:46:35,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-09-07 13:46:35,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 4580 [2019-09-07 13:46:35,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:46:35,902 INFO L225 Difference]: With dead ends: 296804 [2019-09-07 13:46:35,903 INFO L226 Difference]: Without dead ends: 143210 [2019-09-07 13:46:36,026 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4665 GetRequests, 4616 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=539, Invalid=2011, Unknown=0, NotChecked=0, Total=2550 [2019-09-07 13:46:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143210 states. [2019-09-07 13:46:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143210 to 134892. [2019-09-07 13:46:37,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134892 states. [2019-09-07 13:46:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134892 states to 134892 states and 140564 transitions. [2019-09-07 13:46:37,509 INFO L78 Accepts]: Start accepts. Automaton has 134892 states and 140564 transitions. Word has length 4580 [2019-09-07 13:46:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:46:37,510 INFO L475 AbstractCegarLoop]: Abstraction has 134892 states and 140564 transitions. [2019-09-07 13:46:37,510 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-07 13:46:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 134892 states and 140564 transitions. [2019-09-07 13:46:37,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5521 [2019-09-07 13:46:37,776 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:46:37,778 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, 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, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2019-09-07 13:46:37,778 INFO L418 AbstractCegarLoop]: === Iteration 13 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:46:37,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:46:37,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1688549558, now seen corresponding path program 1 times [2019-09-07 13:46:37,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:46:37,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:46:37,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:37,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:37,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:53,286 INFO L134 CoverageAnalysis]: Checked inductivity of 24354 backedges. 4715 proven. 3297 refuted. 0 times theorem prover too weak. 16342 trivial. 0 not checked. [2019-09-07 13:46:53,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:46:53,287 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:46:53,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:54,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 7061 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-07 13:46:54,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:47:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 24354 backedges. 11621 proven. 2 refuted. 0 times theorem prover too weak. 12731 trivial. 0 not checked. [2019-09-07 13:47:05,167 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:47:05,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:47:05,173 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:47:05,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:47:05,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:47:05,174 INFO L87 Difference]: Start difference. First operand 134892 states and 140564 transitions. Second operand 13 states. [2019-09-07 13:47:22,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:47:22,172 INFO L93 Difference]: Finished difference Result 260613 states and 271381 transitions. [2019-09-07 13:47:22,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-09-07 13:47:22,172 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 5520 [2019-09-07 13:47:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:47:22,402 INFO L225 Difference]: With dead ends: 260613 [2019-09-07 13:47:22,402 INFO L226 Difference]: Without dead ends: 126561 [2019-09-07 13:47:22,534 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5653 GetRequests, 5579 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1932 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1076, Invalid=4624, Unknown=0, NotChecked=0, Total=5700 [2019-09-07 13:47:22,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126561 states. [2019-09-07 13:47:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126561 to 117733. [2019-09-07 13:47:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117733 states. [2019-09-07 13:47:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117733 states to 117733 states and 120209 transitions. [2019-09-07 13:47:23,869 INFO L78 Accepts]: Start accepts. Automaton has 117733 states and 120209 transitions. Word has length 5520 [2019-09-07 13:47:23,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:47:23,870 INFO L475 AbstractCegarLoop]: Abstraction has 117733 states and 120209 transitions. [2019-09-07 13:47:23,870 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:47:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 117733 states and 120209 transitions. [2019-09-07 13:47:24,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5544 [2019-09-07 13:47:24,568 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:47:24,570 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:24,570 INFO L418 AbstractCegarLoop]: === Iteration 14 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:47:24,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:47:24,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1487059462, now seen corresponding path program 1 times [2019-09-07 13:47:24,572 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:47:24,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:47:24,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:47:24,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:47:24,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:47:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:47:39,182 INFO L134 CoverageAnalysis]: Checked inductivity of 25317 backedges. 5182 proven. 2121 refuted. 0 times theorem prover too weak. 18014 trivial. 0 not checked. [2019-09-07 13:47:39,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:47:39,183 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:47:39,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:47:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:47:40,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 7093 conjuncts, 54 conjunts are in the unsatisfiable core [2019-09-07 13:47:40,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:47:41,127 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-07 13:48:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 25317 backedges. 13849 proven. 5 refuted. 0 times theorem prover too weak. 11463 trivial. 0 not checked. [2019-09-07 13:48:13,986 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:48:13,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 17 [2019-09-07 13:48:13,992 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-07 13:48:13,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-07 13:48:13,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2019-09-07 13:48:13,993 INFO L87 Difference]: Start difference. First operand 117733 states and 120209 transitions. Second operand 17 states. [2019-09-07 13:48:51,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:48:51,253 INFO L93 Difference]: Finished difference Result 251145 states and 256805 transitions. [2019-09-07 13:48:51,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2019-09-07 13:48:51,254 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 5543 [2019-09-07 13:48:51,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:48:51,468 INFO L225 Difference]: With dead ends: 251145 [2019-09-07 13:48:51,468 INFO L226 Difference]: Without dead ends: 134247 [2019-09-07 13:48:51,524 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5778 GetRequests, 5635 SyntacticMatches, 1 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8159 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=3094, Invalid=17498, Unknown=0, NotChecked=0, Total=20592 [2019-09-07 13:48:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134247 states. [2019-09-07 13:48:52,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134247 to 129839. [2019-09-07 13:48:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129839 states. [2019-09-07 13:48:52,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129839 states to 129839 states and 132036 transitions. [2019-09-07 13:48:52,695 INFO L78 Accepts]: Start accepts. Automaton has 129839 states and 132036 transitions. Word has length 5543 [2019-09-07 13:48:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:48:52,696 INFO L475 AbstractCegarLoop]: Abstraction has 129839 states and 132036 transitions. [2019-09-07 13:48:52,696 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-07 13:48:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 129839 states and 132036 transitions. [2019-09-07 13:48:52,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6218 [2019-09-07 13:48:52,994 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:48:52,996 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 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, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:52,997 INFO L418 AbstractCegarLoop]: === Iteration 15 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:48:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:48:52,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1672988886, now seen corresponding path program 1 times [2019-09-07 13:48:52,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:48:52,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:48:52,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:48:52,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:48:52,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:48:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:48:56,396 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-07 13:48:56,540 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 13:49:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 31672 backedges. 7458 proven. 11670 refuted. 0 times theorem prover too weak. 12544 trivial. 0 not checked. [2019-09-07 13:49:48,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:49:48,659 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:49:48,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:49:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:49:50,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 7938 conjuncts, 42 conjunts are in the unsatisfiable core [2019-09-07 13:49:50,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:49:50,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-07 13:50:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 31672 backedges. 9402 proven. 5 refuted. 0 times theorem prover too weak. 22265 trivial. 0 not checked. [2019-09-07 13:50:36,204 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:50:36,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 7] total 43 [2019-09-07 13:50:36,210 INFO L454 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-09-07 13:50:36,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-09-07 13:50:36,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1610, Unknown=0, NotChecked=0, Total=1806 [2019-09-07 13:50:36,211 INFO L87 Difference]: Start difference. First operand 129839 states and 132036 transitions. Second operand 43 states. [2019-09-07 13:50:36,456 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-07 13:50:36,901 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2019-09-07 13:50:37,082 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:50:37,426 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 48 [2019-09-07 13:50:41,070 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2019-09-07 13:50:42,600 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 34 [2019-09-07 13:50:46,721 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-07 13:50:47,210 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-07 13:50:48,055 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 45 [2019-09-07 13:50:50,051 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-07 13:50:50,490 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2019-09-07 13:50:50,810 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-07 13:50:51,126 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2019-09-07 13:50:52,076 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 39 [2019-09-07 13:50:52,374 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-07 13:50:52,877 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2019-09-07 13:50:53,645 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 37 [2019-09-07 13:50:53,909 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2019-09-07 13:50:54,223 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 30 [2019-09-07 13:50:54,723 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 37 [2019-09-07 13:50:56,618 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 43 [2019-09-07 13:51:00,601 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2019-09-07 13:51:01,454 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 42 [2019-09-07 13:51:03,233 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2019-09-07 13:51:03,703 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 26 [2019-09-07 13:51:07,674 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-07 13:51:08,545 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2019-09-07 13:51:09,435 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2019-09-07 13:51:09,796 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-07 13:51:11,358 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 13:51:11,702 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-07 13:51:15,251 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-07 13:51:16,207 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2019-09-07 13:51:16,778 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 30 [2019-09-07 13:51:17,714 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2019-09-07 13:51:18,141 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-07 13:51:18,506 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 52 [2019-09-07 13:51:18,934 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-07 13:51:24,710 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2019-09-07 13:51:25,000 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:51:25,551 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:51:27,543 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 83 [2019-09-07 13:51:28,206 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 34 [2019-09-07 13:51:28,490 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2019-09-07 13:51:28,923 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2019-09-07 13:51:29,155 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 13:51:29,473 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:51:29,950 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:51:30,214 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 51 [2019-09-07 13:51:30,602 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2019-09-07 13:51:31,368 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2019-09-07 13:51:31,730 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 37 [2019-09-07 13:51:32,135 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-07 13:51:32,452 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-07 13:51:33,371 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 48 [2019-09-07 13:51:34,597 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-07 13:51:35,154 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 51 [2019-09-07 13:51:35,420 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2019-09-07 13:51:35,657 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 36 [2019-09-07 13:51:36,729 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-07 13:51:37,065 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2019-09-07 13:51:38,673 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-07 13:51:39,020 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 31 [2019-09-07 13:51:39,403 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 32 [2019-09-07 13:51:40,424 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2019-09-07 13:51:41,795 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 40 [2019-09-07 13:51:42,161 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 63 [2019-09-07 13:51:42,919 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2019-09-07 13:51:43,445 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2019-09-07 13:51:43,733 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 13:51:44,920 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2019-09-07 13:51:45,242 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 76 [2019-09-07 13:51:45,635 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2019-09-07 13:51:45,969 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 40 [2019-09-07 13:51:46,967 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 31 [2019-09-07 13:51:47,543 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-07 13:51:48,447 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 36 [2019-09-07 13:51:50,118 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-07 13:51:50,335 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 13:51:50,946 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2019-09-07 13:51:52,637 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 31 [2019-09-07 13:51:52,957 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-07 13:51:53,354 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 52 [2019-09-07 13:51:53,604 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 25 [2019-09-07 13:51:54,175 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-07 13:51:55,207 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-07 13:51:55,792 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-09-07 13:51:56,354 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:51:56,841 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 32 [2019-09-07 13:51:57,530 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2019-09-07 13:51:58,400 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-07 13:51:59,808 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-07 13:52:00,035 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-07 13:52:00,621 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-07 13:52:01,219 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-07 13:52:01,445 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2019-09-07 13:52:01,629 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2019-09-07 13:52:01,826 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2019-09-07 13:52:02,146 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2019-09-07 13:52:03,411 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-07 13:52:03,607 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 22 [2019-09-07 13:52:04,787 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-09-07 13:52:05,170 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 41 [2019-09-07 13:52:05,623 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-07 13:52:05,910 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 51 [2019-09-07 13:52:06,177 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2019-09-07 13:52:06,585 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-07 13:52:08,610 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 60 [2019-09-07 13:52:08,880 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 44 [2019-09-07 13:52:09,568 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 34 [2019-09-07 13:52:09,981 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 50 [2019-09-07 13:52:10,315 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 39 [2019-09-07 13:52:10,744 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 32 [2019-09-07 13:52:10,956 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2019-09-07 13:52:12,649 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 65 [2019-09-07 13:52:12,984 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 56 [2019-09-07 13:52:13,580 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 24 [2019-09-07 13:52:13,843 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 45 [2019-09-07 13:52:14,373 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 82 [2019-09-07 13:52:16,615 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 60 [2019-09-07 13:52:16,918 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 47 [2019-09-07 13:52:17,526 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 42 [2019-09-07 13:52:17,836 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 31 [2019-09-07 13:52:18,143 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2019-09-07 13:52:18,420 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 51 [2019-09-07 13:52:18,611 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 45 [2019-09-07 13:52:18,803 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 27 [2019-09-07 13:52:19,167 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2019-09-07 13:52:19,762 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 31 [2019-09-07 13:52:20,200 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-07 13:52:21,640 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-07 13:52:21,874 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2019-09-07 13:52:22,380 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 35 [2019-09-07 13:52:23,448 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 36 [2019-09-07 13:52:25,297 WARN L188 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 89 [2019-09-07 13:52:25,616 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2019-09-07 13:52:27,107 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2019-09-07 13:52:27,556 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 34 [2019-09-07 13:52:29,040 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 40 [2019-09-07 13:52:29,578 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 38 [2019-09-07 13:52:30,239 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 33 [2019-09-07 13:52:31,077 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:52:31,363 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2019-09-07 13:52:31,820 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-07 13:52:33,132 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 33 [2019-09-07 13:52:34,352 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 40 [2019-09-07 13:52:34,903 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 61 [2019-09-07 13:52:35,579 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2019-09-07 13:52:35,904 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 27 [2019-09-07 13:52:37,153 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-07 13:52:38,205 WARN L188 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2019-09-07 13:52:38,625 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-07 13:52:39,242 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 38 [2019-09-07 13:52:40,317 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2019-09-07 13:52:41,149 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 65 [2019-09-07 13:52:41,404 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 55 [2019-09-07 13:52:41,751 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 58 [2019-09-07 13:52:41,945 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 49 [2019-09-07 13:52:42,258 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-07 13:52:42,508 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:52:43,083 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-07 13:52:43,317 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-07 13:52:43,845 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 52 [2019-09-07 13:52:44,593 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-07 13:52:44,975 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2019-09-07 13:52:45,234 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 36 [2019-09-07 13:52:45,641 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-07 13:52:45,891 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 37 [2019-09-07 13:52:46,381 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-07 13:52:46,667 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-07 13:52:47,025 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-07 13:52:47,449 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2019-09-07 13:52:47,679 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-07 13:52:48,054 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-07 13:52:48,451 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 53 [2019-09-07 13:52:48,664 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 40 [2019-09-07 13:52:49,027 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-07 13:52:49,503 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-07 13:52:49,818 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-07 13:52:50,086 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:52:50,384 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2019-09-07 13:52:50,840 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2019-09-07 13:52:51,339 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-09-07 13:52:51,586 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2019-09-07 13:52:51,838 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 22 [2019-09-07 13:52:52,193 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2019-09-07 13:52:52,472 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-07 13:52:52,695 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2019-09-07 13:52:53,133 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2019-09-07 13:52:53,689 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 23 [2019-09-07 13:52:54,065 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 24 [2019-09-07 13:52:54,860 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-07 13:52:55,414 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-07 13:52:55,647 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2019-09-07 13:52:55,879 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2019-09-07 13:52:56,119 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2019-09-07 13:52:56,520 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 57 [2019-09-07 13:52:56,757 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 46 [2019-09-07 13:52:57,075 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-07 13:52:57,626 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2019-09-07 13:52:57,946 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2019-09-07 13:52:58,342 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-07 13:52:58,661 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 13:52:59,257 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 50 [2019-09-07 13:52:59,470 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 25 [2019-09-07 13:53:04,184 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 50 [2019-09-07 13:53:04,571 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-09-07 13:53:06,062 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2019-09-07 13:53:06,908 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:53:08,073 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 29 [2019-09-07 13:53:08,231 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 37 [2019-09-07 13:53:10,400 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 34 [2019-09-07 13:53:10,617 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 29 [2019-09-07 13:53:10,794 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 27 [2019-09-07 13:53:11,383 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 18 [2019-09-07 13:53:11,575 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2019-09-07 13:53:11,812 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2019-09-07 13:53:12,049 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 38 [2019-09-07 13:53:12,266 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 37 [2019-09-07 13:53:12,695 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 39 [2019-09-07 13:53:18,405 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2019-09-07 13:53:18,967 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-07 13:53:22,809 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 42 [2019-09-07 13:53:24,139 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:53:24,758 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:53:26,718 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-07 13:53:30,479 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2019-09-07 13:53:31,049 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-07 13:53:34,294 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-07 13:53:34,626 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-07 13:53:35,663 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-07 13:53:36,384 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-07 13:53:39,256 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-07 13:53:40,181 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 35 [2019-09-07 13:53:41,774 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 36 [2019-09-07 13:53:42,237 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-07 13:53:42,922 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 20 [2019-09-07 13:53:45,154 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 27 [2019-09-07 13:53:48,798 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2019-09-07 13:53:50,826 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2019-09-07 13:53:52,165 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-07 13:53:55,359 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2019-09-07 13:53:56,283 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2019-09-07 13:53:56,798 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 46 [2019-09-07 13:53:57,215 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-07 13:53:58,566 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 13:53:59,506 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-07 13:54:00,941 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-07 13:54:02,471 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2019-09-07 13:54:04,340 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2019-09-07 13:54:04,689 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2019-09-07 13:54:08,080 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-07 13:54:09,651 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2019-09-07 13:54:12,253 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-07 13:54:13,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:54:13,341 INFO L93 Difference]: Finished difference Result 350044 states and 361301 transitions. [2019-09-07 13:54:13,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 398 states. [2019-09-07 13:54:13,342 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 6217 [2019-09-07 13:54:13,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:54:13,731 INFO L225 Difference]: With dead ends: 350044 [2019-09-07 13:54:13,731 INFO L226 Difference]: Without dead ends: 221045 [2019-09-07 13:54:13,822 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6845 GetRequests, 6405 SyntacticMatches, 6 SemanticMatches, 434 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83731 ImplicationChecksByTransitivity, 72.7s TimeCoverageRelationStatistics Valid=18828, Invalid=170832, Unknown=0, NotChecked=0, Total=189660 [2019-09-07 13:54:13,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221045 states.