/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 03:20:48,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 03:20:48,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 03:20:48,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 03:20:48,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 03:20:48,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 03:20:48,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 03:20:48,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 03:20:48,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 03:20:48,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 03:20:48,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 03:20:48,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 03:20:48,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 03:20:48,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 03:20:48,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 03:20:48,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 03:20:48,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 03:20:48,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 03:20:48,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 03:20:48,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 03:20:48,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 03:20:48,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 03:20:48,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 03:20:48,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 03:20:48,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 03:20:48,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 03:20:48,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 03:20:48,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 03:20:48,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 03:20:48,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 03:20:48,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 03:20:48,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 03:20:48,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 03:20:48,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 03:20:48,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 03:20:48,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 03:20:48,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 03:20:48,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 03:20:48,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 03:20:48,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 03:20:48,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 03:20:48,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 03:20:48,994 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 03:20:48,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 03:20:48,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 03:20:48,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 03:20:48,996 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 03:20:48,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 03:20:48,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 03:20:48,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 03:20:48,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 03:20:48,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 03:20:48,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 03:20:48,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 03:20:48,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 03:20:49,000 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 03:20:49,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 03:20:49,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 03:20:49,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 03:20:49,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 03:20:49,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 03:20:49,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 03:20:49,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 03:20:49,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:20:49,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 03:20:49,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 03:20:49,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 03:20:49,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 03:20:49,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 03:20:49,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 03:20:49,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 03:20:49,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 03:20:49,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 03:20:49,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 03:20:49,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 03:20:49,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 03:20:49,353 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 03:20:49,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-08-19 03:20:49,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ad2f6ce/41fa1540d2ee4e6ca7d1537e13b54705/FLAGaee99d406 [2020-08-19 03:20:49,951 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 03:20:49,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-08-19 03:20:49,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ad2f6ce/41fa1540d2ee4e6ca7d1537e13b54705/FLAGaee99d406 [2020-08-19 03:20:50,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ad2f6ce/41fa1540d2ee4e6ca7d1537e13b54705 [2020-08-19 03:20:50,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 03:20:50,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 03:20:50,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 03:20:50,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 03:20:50,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 03:20:50,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76162525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50, skipping insertion in model container [2020-08-19 03:20:50,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 03:20:50,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 03:20:50,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:20:50,592 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 03:20:50,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:20:50,902 INFO L208 MainTranslator]: Completed translation [2020-08-19 03:20:50,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50 WrapperNode [2020-08-19 03:20:50,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 03:20:50,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 03:20:50,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 03:20:50,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 03:20:50,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:50,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... [2020-08-19 03:20:51,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 03:20:51,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 03:20:51,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 03:20:51,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 03:20:51,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-19 03:20:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 03:20:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 03:20:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 03:20:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-19 03:20:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 03:20:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 03:20:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 03:20:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 03:20:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 03:20:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 03:20:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 03:20:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 03:20:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 03:20:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 03:20:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 03:20:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 03:20:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 03:20:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 03:20:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 03:20:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 03:20:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-19 03:20:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 03:20:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 03:20:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 03:20:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 03:20:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 03:20:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 03:20:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 03:20:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 03:20:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 03:20:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 03:20:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 03:20:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 03:20:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 03:20:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 03:20:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 03:20:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 03:20:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 03:20:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 03:20:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 03:20:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 03:20:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 03:20:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 03:20:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 03:20:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 03:20:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 03:20:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-19 03:20:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 03:20:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 03:20:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 03:20:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 03:20:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 03:20:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 03:20:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 03:20:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 03:20:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 03:20:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 03:20:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 03:20:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 03:20:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 03:20:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 03:20:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 03:20:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 03:20:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 03:20:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 03:20:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 03:20:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 03:20:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 03:20:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-19 03:20:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 03:20:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 03:20:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 03:20:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 03:20:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 03:20:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 03:20:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 03:20:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 03:20:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 03:20:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 03:20:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 03:20:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 03:20:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 03:20:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 03:20:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 03:20:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 03:20:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 03:20:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 03:20:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 03:20:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 03:20:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 03:20:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 03:20:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 03:20:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 03:20:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 03:20:52,161 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 03:20:52,162 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 03:20:52,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:20:52 BoogieIcfgContainer [2020-08-19 03:20:52,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 03:20:52,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 03:20:52,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 03:20:52,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 03:20:52,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:20:50" (1/3) ... [2020-08-19 03:20:52,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f75efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:20:52, skipping insertion in model container [2020-08-19 03:20:52,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:20:50" (2/3) ... [2020-08-19 03:20:52,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f75efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:20:52, skipping insertion in model container [2020-08-19 03:20:52,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:20:52" (3/3) ... [2020-08-19 03:20:52,181 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2020-08-19 03:20:52,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 03:20:52,201 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 03:20:52,216 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 03:20:52,249 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 03:20:52,250 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 03:20:52,250 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 03:20:52,250 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 03:20:52,250 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 03:20:52,250 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 03:20:52,250 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 03:20:52,251 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 03:20:52,271 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-08-19 03:20:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-19 03:20:52,281 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:20:52,282 INFO L422 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] [2020-08-19 03:20:52,283 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:20:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:20:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1070296044, now seen corresponding path program 1 times [2020-08-19 03:20:52,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:20:52,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319003510] [2020-08-19 03:20:52,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:20:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:52,963 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:20:52,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:20:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:53,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:20:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:53,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:20:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:53,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:20:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:20:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:20:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:53,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:20:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:20:53,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319003510] [2020-08-19 03:20:53,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:20:53,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 03:20:53,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677057075] [2020-08-19 03:20:53,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 03:20:53,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:20:53,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 03:20:53,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 03:20:53,126 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2020-08-19 03:20:54,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:20:54,341 INFO L93 Difference]: Finished difference Result 317 states and 417 transitions. [2020-08-19 03:20:54,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 03:20:54,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-19 03:20:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:20:54,372 INFO L225 Difference]: With dead ends: 317 [2020-08-19 03:20:54,372 INFO L226 Difference]: Without dead ends: 172 [2020-08-19 03:20:54,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 03:20:54,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-08-19 03:20:54,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 136. [2020-08-19 03:20:54,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-08-19 03:20:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2020-08-19 03:20:54,471 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 46 [2020-08-19 03:20:54,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:20:54,471 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2020-08-19 03:20:54,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 03:20:54,472 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2020-08-19 03:20:54,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-19 03:20:54,476 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:20:54,476 INFO L422 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] [2020-08-19 03:20:54,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 03:20:54,477 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:20:54,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:20:54,477 INFO L82 PathProgramCache]: Analyzing trace with hash 689119196, now seen corresponding path program 1 times [2020-08-19 03:20:54,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:20:54,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44428307] [2020-08-19 03:20:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:20:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,802 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:20:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:20:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:20:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:20:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:20:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:20:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 03:20:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 03:20:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:20:54,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44428307] [2020-08-19 03:20:54,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:20:54,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 03:20:54,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96507857] [2020-08-19 03:20:54,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 03:20:54,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:20:54,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 03:20:54,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 03:20:54,896 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 4 states. [2020-08-19 03:20:55,293 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:20:56,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:20:56,148 INFO L93 Difference]: Finished difference Result 244 states and 300 transitions. [2020-08-19 03:20:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 03:20:56,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-19 03:20:56,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:20:56,153 INFO L225 Difference]: With dead ends: 244 [2020-08-19 03:20:56,154 INFO L226 Difference]: Without dead ends: 156 [2020-08-19 03:20:56,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 03:20:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-08-19 03:20:56,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 127. [2020-08-19 03:20:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-08-19 03:20:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2020-08-19 03:20:56,190 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 47 [2020-08-19 03:20:56,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:20:56,190 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2020-08-19 03:20:56,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 03:20:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2020-08-19 03:20:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-19 03:20:56,192 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:20:56,192 INFO L422 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] [2020-08-19 03:20:56,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 03:20:56,193 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:20:56,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:20:56,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1659347680, now seen corresponding path program 1 times [2020-08-19 03:20:56,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:20:56,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506340777] [2020-08-19 03:20:56,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:20:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,540 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:20:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:20:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:20:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:20:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:20:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:20:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:20:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 03:20:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:20:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:20:56,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506340777] [2020-08-19 03:20:56,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:20:56,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 03:20:56,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236167544] [2020-08-19 03:20:56,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 03:20:56,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:20:56,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 03:20:56,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 03:20:56,643 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand 8 states. [2020-08-19 03:20:57,013 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:20:57,330 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:20:57,598 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:20:57,832 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:20:58,541 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:00,420 INFO L93 Difference]: Finished difference Result 437 states and 546 transitions. [2020-08-19 03:21:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 03:21:00,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-19 03:21:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:00,433 INFO L225 Difference]: With dead ends: 437 [2020-08-19 03:21:00,433 INFO L226 Difference]: Without dead ends: 334 [2020-08-19 03:21:00,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-19 03:21:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-08-19 03:21:00,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 272. [2020-08-19 03:21:00,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-08-19 03:21:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 332 transitions. [2020-08-19 03:21:00,513 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 332 transitions. Word has length 51 [2020-08-19 03:21:00,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:00,514 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 332 transitions. [2020-08-19 03:21:00,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 03:21:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 332 transitions. [2020-08-19 03:21:00,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-19 03:21:00,517 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:00,517 INFO L422 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] [2020-08-19 03:21:00,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 03:21:00,517 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:00,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:00,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2103406603, now seen corresponding path program 1 times [2020-08-19 03:21:00,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:00,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310640827] [2020-08-19 03:21:00,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,870 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:00,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 03:21:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 03:21:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 03:21:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:21:00,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310640827] [2020-08-19 03:21:00,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:21:00,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 03:21:00,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234800615] [2020-08-19 03:21:00,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 03:21:00,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:00,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 03:21:00,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 03:21:00,952 INFO L87 Difference]: Start difference. First operand 272 states and 332 transitions. Second operand 8 states. [2020-08-19 03:21:01,316 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:02,268 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:02,624 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:02,931 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:03,218 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:03,655 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:04,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:04,677 INFO L93 Difference]: Finished difference Result 882 states and 1149 transitions. [2020-08-19 03:21:04,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 03:21:04,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-19 03:21:04,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:04,685 INFO L225 Difference]: With dead ends: 882 [2020-08-19 03:21:04,685 INFO L226 Difference]: Without dead ends: 634 [2020-08-19 03:21:04,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-19 03:21:04,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-08-19 03:21:04,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 499. [2020-08-19 03:21:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-08-19 03:21:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 614 transitions. [2020-08-19 03:21:04,845 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 614 transitions. Word has length 57 [2020-08-19 03:21:04,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:04,846 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 614 transitions. [2020-08-19 03:21:04,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 03:21:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 614 transitions. [2020-08-19 03:21:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-19 03:21:04,850 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:04,850 INFO L422 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] [2020-08-19 03:21:04,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 03:21:04,851 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:04,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1216252231, now seen corresponding path program 1 times [2020-08-19 03:21:04,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:04,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521228302] [2020-08-19 03:21:04,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,144 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:05,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 03:21:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:21:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 03:21:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-19 03:21:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:21:05,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521228302] [2020-08-19 03:21:05,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:21:05,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:21:05,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182138142] [2020-08-19 03:21:05,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:21:05,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:05,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:21:05,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:21:05,249 INFO L87 Difference]: Start difference. First operand 499 states and 614 transitions. Second operand 9 states. [2020-08-19 03:21:05,579 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:06,476 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:06,730 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:06,977 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:07,652 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:07,906 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:08,899 INFO L93 Difference]: Finished difference Result 1415 states and 1900 transitions. [2020-08-19 03:21:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 03:21:08,900 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-08-19 03:21:08,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:08,907 INFO L225 Difference]: With dead ends: 1415 [2020-08-19 03:21:08,908 INFO L226 Difference]: Without dead ends: 940 [2020-08-19 03:21:08,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 03:21:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-08-19 03:21:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 759. [2020-08-19 03:21:09,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-08-19 03:21:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 935 transitions. [2020-08-19 03:21:09,047 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 935 transitions. Word has length 61 [2020-08-19 03:21:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:09,047 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 935 transitions. [2020-08-19 03:21:09,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:21:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 935 transitions. [2020-08-19 03:21:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-19 03:21:09,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:09,051 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 03:21:09,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 03:21:09,052 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:09,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:09,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1403376364, now seen corresponding path program 1 times [2020-08-19 03:21:09,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:09,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520621206] [2020-08-19 03:21:09,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,355 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 03:21:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 03:21:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:21:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 03:21:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 03:21:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:21:09,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520621206] [2020-08-19 03:21:09,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:21:09,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:21:09,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662105937] [2020-08-19 03:21:09,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:21:09,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:09,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:21:09,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:21:09,478 INFO L87 Difference]: Start difference. First operand 759 states and 935 transitions. Second operand 9 states. [2020-08-19 03:21:09,810 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:10,678 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:10,906 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:11,196 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:11,444 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:13,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:13,306 INFO L93 Difference]: Finished difference Result 2506 states and 3515 transitions. [2020-08-19 03:21:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 03:21:13,307 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-19 03:21:13,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:13,324 INFO L225 Difference]: With dead ends: 2506 [2020-08-19 03:21:13,325 INFO L226 Difference]: Without dead ends: 1771 [2020-08-19 03:21:13,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:21:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2020-08-19 03:21:13,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1371. [2020-08-19 03:21:13,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1371 states. [2020-08-19 03:21:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1674 transitions. [2020-08-19 03:21:13,562 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1674 transitions. Word has length 98 [2020-08-19 03:21:13,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:13,562 INFO L479 AbstractCegarLoop]: Abstraction has 1371 states and 1674 transitions. [2020-08-19 03:21:13,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:21:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1674 transitions. [2020-08-19 03:21:13,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-19 03:21:13,567 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:13,567 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 03:21:13,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 03:21:13,568 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:13,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1411135723, now seen corresponding path program 1 times [2020-08-19 03:21:13,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:13,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228988981] [2020-08-19 03:21:13,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,802 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:13,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 03:21:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 03:21:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:21:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 03:21:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 03:21:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:21:13,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228988981] [2020-08-19 03:21:13,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:21:13,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:21:13,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123449070] [2020-08-19 03:21:13,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:21:13,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:13,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:21:13,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:21:13,921 INFO L87 Difference]: Start difference. First operand 1371 states and 1674 transitions. Second operand 9 states. [2020-08-19 03:21:14,892 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:15,125 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:15,382 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:15,642 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:16,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:16,781 INFO L93 Difference]: Finished difference Result 3134 states and 4213 transitions. [2020-08-19 03:21:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 03:21:16,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-19 03:21:16,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:16,797 INFO L225 Difference]: With dead ends: 3134 [2020-08-19 03:21:16,798 INFO L226 Difference]: Without dead ends: 1787 [2020-08-19 03:21:16,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 03:21:16,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2020-08-19 03:21:17,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1411. [2020-08-19 03:21:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1411 states. [2020-08-19 03:21:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1714 transitions. [2020-08-19 03:21:17,083 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1714 transitions. Word has length 98 [2020-08-19 03:21:17,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:17,084 INFO L479 AbstractCegarLoop]: Abstraction has 1411 states and 1714 transitions. [2020-08-19 03:21:17,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:21:17,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1714 transitions. [2020-08-19 03:21:17,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-19 03:21:17,088 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:17,089 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 03:21:17,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 03:21:17,089 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:17,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:17,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1990345235, now seen corresponding path program 1 times [2020-08-19 03:21:17,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:17,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343723893] [2020-08-19 03:21:17,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,433 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:17,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 03:21:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 03:21:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:21:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 03:21:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 03:21:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:21:17,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343723893] [2020-08-19 03:21:17,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:21:17,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 03:21:17,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780050686] [2020-08-19 03:21:17,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 03:21:17,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:17,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 03:21:17,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 03:21:17,588 INFO L87 Difference]: Start difference. First operand 1411 states and 1714 transitions. Second operand 11 states. [2020-08-19 03:21:18,026 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:18,250 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:18,483 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:19,127 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:19,382 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:19,623 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:21:20,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:20,869 INFO L93 Difference]: Finished difference Result 2760 states and 3605 transitions. [2020-08-19 03:21:20,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 03:21:20,870 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-08-19 03:21:20,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:20,880 INFO L225 Difference]: With dead ends: 2760 [2020-08-19 03:21:20,880 INFO L226 Difference]: Without dead ends: 1373 [2020-08-19 03:21:20,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:21:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-08-19 03:21:21,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1129. [2020-08-19 03:21:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-08-19 03:21:21,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1346 transitions. [2020-08-19 03:21:21,087 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1346 transitions. Word has length 98 [2020-08-19 03:21:21,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:21,088 INFO L479 AbstractCegarLoop]: Abstraction has 1129 states and 1346 transitions. [2020-08-19 03:21:21,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 03:21:21,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1346 transitions. [2020-08-19 03:21:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-19 03:21:21,093 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:21,095 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 03:21:21,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 03:21:21,096 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:21,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:21,096 INFO L82 PathProgramCache]: Analyzing trace with hash 860662504, now seen corresponding path program 1 times [2020-08-19 03:21:21,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:21,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474879044] [2020-08-19 03:21:21,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,421 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:21,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:21:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 03:21:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 03:21:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:21:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-19 03:21:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-19 03:21:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 03:21:21,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474879044] [2020-08-19 03:21:21,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:21:21,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-19 03:21:21,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545277685] [2020-08-19 03:21:21,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-19 03:21:21,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:21,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-19 03:21:21,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-08-19 03:21:21,968 INFO L87 Difference]: Start difference. First operand 1129 states and 1346 transitions. Second operand 17 states. [2020-08-19 03:21:22,525 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:22,842 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:21:23,090 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:23,344 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:23,971 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:24,567 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:25,000 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:26,282 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:26,568 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:26,875 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:27,164 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:27,711 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-08-19 03:21:28,260 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-08-19 03:21:29,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:29,676 INFO L93 Difference]: Finished difference Result 2470 states and 3101 transitions. [2020-08-19 03:21:29,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-19 03:21:29,677 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 102 [2020-08-19 03:21:29,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:29,686 INFO L225 Difference]: With dead ends: 2470 [2020-08-19 03:21:29,686 INFO L226 Difference]: Without dead ends: 1365 [2020-08-19 03:21:29,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2020-08-19 03:21:29,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2020-08-19 03:21:29,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1103. [2020-08-19 03:21:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-08-19 03:21:29,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1291 transitions. [2020-08-19 03:21:29,957 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1291 transitions. Word has length 102 [2020-08-19 03:21:29,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:29,959 INFO L479 AbstractCegarLoop]: Abstraction has 1103 states and 1291 transitions. [2020-08-19 03:21:29,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-19 03:21:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1291 transitions. [2020-08-19 03:21:29,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-19 03:21:29,965 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:29,965 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-08-19 03:21:29,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 03:21:29,966 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:29,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1219959590, now seen corresponding path program 1 times [2020-08-19 03:21:29,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:29,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993630501] [2020-08-19 03:21:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,216 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:30,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:21:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 03:21:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:21:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 03:21:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:21:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 03:21:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-19 03:21:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:21:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-19 03:21:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-19 03:21:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-08-19 03:21:30,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993630501] [2020-08-19 03:21:30,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:21:30,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 03:21:30,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257995066] [2020-08-19 03:21:30,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:21:30,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:30,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:21:30,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:21:30,452 INFO L87 Difference]: Start difference. First operand 1103 states and 1291 transitions. Second operand 9 states. [2020-08-19 03:21:31,418 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:33,444 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:34,502 INFO L93 Difference]: Finished difference Result 3017 states and 3973 transitions. [2020-08-19 03:21:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-19 03:21:34,502 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 153 [2020-08-19 03:21:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:34,517 INFO L225 Difference]: With dead ends: 3017 [2020-08-19 03:21:34,517 INFO L226 Difference]: Without dead ends: 2254 [2020-08-19 03:21:34,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 60 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-08-19 03:21:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-08-19 03:21:34,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1821. [2020-08-19 03:21:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1821 states. [2020-08-19 03:21:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2151 transitions. [2020-08-19 03:21:34,907 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2151 transitions. Word has length 153 [2020-08-19 03:21:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:34,909 INFO L479 AbstractCegarLoop]: Abstraction has 1821 states and 2151 transitions. [2020-08-19 03:21:34,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:21:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2151 transitions. [2020-08-19 03:21:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-19 03:21:34,916 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:21:34,916 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-08-19 03:21:34,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 03:21:34,916 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:21:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:21:34,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1025619864, now seen corresponding path program 1 times [2020-08-19 03:21:34,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:21:34,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646020143] [2020-08-19 03:21:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:21:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,195 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 03:21:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:21:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:21:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:21:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:21:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:21:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 03:21:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:21:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:21:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 03:21:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:21:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 03:21:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-19 03:21:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:21:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:21:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:21:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-19 03:21:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-19 03:21:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:21:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-19 03:21:35,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646020143] [2020-08-19 03:21:35,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:21:35,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-19 03:21:35,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568581070] [2020-08-19 03:21:35,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-19 03:21:35,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:21:35,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-19 03:21:35,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:21:35,468 INFO L87 Difference]: Start difference. First operand 1821 states and 2151 transitions. Second operand 18 states. [2020-08-19 03:21:35,915 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:36,261 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:21:36,510 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:36,748 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:21:37,455 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 03:21:38,043 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:38,427 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:39,606 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:39,912 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:40,211 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:40,502 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:41,454 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:41,706 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:41,987 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:42,227 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 03:21:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:21:43,103 INFO L93 Difference]: Finished difference Result 3558 states and 4508 transitions. [2020-08-19 03:21:43,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-08-19 03:21:43,104 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 153 [2020-08-19 03:21:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:21:43,105 INFO L225 Difference]: With dead ends: 3558 [2020-08-19 03:21:43,105 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 03:21:43,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2020-08-19 03:21:43,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 03:21:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 03:21:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 03:21:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 03:21:43,116 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-08-19 03:21:43,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:21:43,116 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 03:21:43,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-19 03:21:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 03:21:43,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 03:21:43,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 03:21:43,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 03:21:46,427 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 500 DAG size of output: 332 [2020-08-19 03:21:47,727 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 500 DAG size of output: 332