/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:10:48,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:10:48,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:10:48,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:10:48,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:10:48,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:10:48,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:10:48,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:10:48,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:10:48,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:10:48,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:10:48,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:10:48,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:10:48,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:10:48,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:10:48,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:10:48,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:10:48,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:10:48,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:10:48,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:10:48,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:10:48,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:10:48,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:10:48,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:10:48,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:10:48,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:10:48,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:10:48,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:10:48,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:10:48,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:10:48,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:10:48,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:10:48,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:10:48,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:10:48,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:10:48,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:10:48,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:10:48,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:10:48,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:10:48,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:10:48,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:10:48,709 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 [2020-08-22 01:10:48,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:10:48,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:10:48,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:10:48,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:10:48,756 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:10:48,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:10:48,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:10:48,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:10:48,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:10:48,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:10:48,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:10:48,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:10:48,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:10:48,760 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:10:48,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:10:48,760 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:10:48,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:10:48,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:10:48,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:10:48,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:10:48,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:10:48,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:10:48,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:10:48,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:10:48,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:10:48,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:10:48,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:10:48,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:10:48,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:10:48,763 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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-08-22 01:10:49,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:10:49,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:10:49,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:10:49,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:10:49,104 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:10:49,105 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-08-22 01:10:49,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d18754c18/633417a5c732424d90c945f86916638c/FLAGb0aababbc [2020-08-22 01:10:49,698 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:10:49,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-08-22 01:10:49,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d18754c18/633417a5c732424d90c945f86916638c/FLAGb0aababbc [2020-08-22 01:10:50,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d18754c18/633417a5c732424d90c945f86916638c [2020-08-22 01:10:50,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:10:50,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:10:50,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:10:50,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:10:50,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:10:50,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e1b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50, skipping insertion in model container [2020-08-22 01:10:50,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:10:50,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:10:50,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:10:50,560 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:10:50,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:10:50,726 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:10:50,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50 WrapperNode [2020-08-22 01:10:50,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:10:50,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:10:50,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:10:50,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:10:50,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (1/1) ... [2020-08-22 01:10:50,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:10:50,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:10:50,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:10:50,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:10:50,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (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 [2020-08-22 01:10:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:10:50,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:10:50,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 01:10:50,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 01:10:50,884 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 01:10:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 01:10:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 01:10:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 01:10:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 01:10:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 01:10:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 01:10:50,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-22 01:10:50,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 01:10:50,887 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 01:10:50,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 01:10:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 01:10:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:10:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 01:10:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 01:10:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 01:10:50,889 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 01:10:50,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 01:10:50,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 01:10:50,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 01:10:50,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 01:10:50,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 01:10:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 01:10:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 01:10:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 01:10:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 01:10:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 01:10:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 01:10:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 01:10:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 01:10:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 01:10:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 01:10:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 01:10:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 01:10:50,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 01:10:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:10:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:10:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 01:10:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 01:10:50,897 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 01:10:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 01:10:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 01:10:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 01:10:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 01:10:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 01:10:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 01:10:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 01:10:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 01:10:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-22 01:10:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 01:10:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 01:10:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 01:10:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 01:10:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 01:10:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 01:10:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 01:10:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 01:10:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 01:10:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 01:10:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:10:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 01:10:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 01:10:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 01:10:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 01:10:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 01:10:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 01:10:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 01:10:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 01:10:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 01:10:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 01:10:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 01:10:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 01:10:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 01:10:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 01:10:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 01:10:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 01:10:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 01:10:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 01:10:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 01:10:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 01:10:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 01:10:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 01:10:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 01:10:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 01:10:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 01:10:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:10:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 01:10:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:10:52,075 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:10:52,076 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 01:10:52,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:10:52 BoogieIcfgContainer [2020-08-22 01:10:52,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:10:52,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:10:52,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:10:52,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:10:52,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:10:50" (1/3) ... [2020-08-22 01:10:52,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b64ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:10:52, skipping insertion in model container [2020-08-22 01:10:52,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:10:50" (2/3) ... [2020-08-22 01:10:52,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b64ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:10:52, skipping insertion in model container [2020-08-22 01:10:52,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:10:52" (3/3) ... [2020-08-22 01:10:52,094 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-08-22 01:10:52,104 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:10:52,112 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:10:52,124 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:10:52,144 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:10:52,144 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:10:52,144 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:10:52,144 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:10:52,145 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:10:52,145 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:10:52,145 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:10:52,145 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:10:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-08-22 01:10:52,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 01:10:52,176 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:10:52,177 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] [2020-08-22 01:10:52,178 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:10:52,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:10:52,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1763081390, now seen corresponding path program 1 times [2020-08-22 01:10:52,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:10:52,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502457564] [2020-08-22 01:10:52,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:10:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:52,946 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:10:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:10:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:52,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:10:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:53,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:10:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:10:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:53,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:10:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:53,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 01:10:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:53,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:10:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:10:53,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502457564] [2020-08-22 01:10:53,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:10:53,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 01:10:53,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538401045] [2020-08-22 01:10:53,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 01:10:53,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:10:53,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 01:10:53,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:10:53,055 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 3 states. [2020-08-22 01:10:54,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:10:54,286 INFO L93 Difference]: Finished difference Result 303 states and 398 transitions. [2020-08-22 01:10:54,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 01:10:54,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-22 01:10:54,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:10:54,304 INFO L225 Difference]: With dead ends: 303 [2020-08-22 01:10:54,304 INFO L226 Difference]: Without dead ends: 164 [2020-08-22 01:10:54,309 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 [2020-08-22 01:10:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-08-22 01:10:54,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 130. [2020-08-22 01:10:54,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-08-22 01:10:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2020-08-22 01:10:54,403 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 46 [2020-08-22 01:10:54,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:10:54,404 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2020-08-22 01:10:54,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 01:10:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2020-08-22 01:10:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 01:10:54,408 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:10:54,408 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] [2020-08-22 01:10:54,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:10:54,409 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:10:54,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:10:54,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1948835968, now seen corresponding path program 1 times [2020-08-22 01:10:54,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:10:54,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617333218] [2020-08-22 01:10:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:10:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,747 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:10:54,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:10:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:10:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:10:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:10:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:10:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 01:10:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:10:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:10:54,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617333218] [2020-08-22 01:10:54,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:10:54,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 01:10:54,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092687887] [2020-08-22 01:10:54,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 01:10:54,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:10:54,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 01:10:54,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 01:10:54,794 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 4 states. [2020-08-22 01:10:55,222 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:10:56,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:10:56,110 INFO L93 Difference]: Finished difference Result 236 states and 289 transitions. [2020-08-22 01:10:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 01:10:56,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-22 01:10:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:10:56,120 INFO L225 Difference]: With dead ends: 236 [2020-08-22 01:10:56,120 INFO L226 Difference]: Without dead ends: 148 [2020-08-22 01:10:56,122 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 [2020-08-22 01:10:56,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-22 01:10:56,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2020-08-22 01:10:56,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-08-22 01:10:56,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2020-08-22 01:10:56,162 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 47 [2020-08-22 01:10:56,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:10:56,162 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2020-08-22 01:10:56,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 01:10:56,163 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2020-08-22 01:10:56,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 01:10:56,165 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:10:56,165 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] [2020-08-22 01:10:56,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:10:56,165 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:10:56,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:10:56,166 INFO L82 PathProgramCache]: Analyzing trace with hash -970175768, now seen corresponding path program 1 times [2020-08-22 01:10:56,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:10:56,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659574] [2020-08-22 01:10:56,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:10:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,537 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:10:56,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:10:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:10:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:10:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:10:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:10:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 01:10:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 01:10:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:10:56,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659574] [2020-08-22 01:10:56,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:10:56,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:10:56,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966654776] [2020-08-22 01:10:56,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:10:56,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:10:56,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:10:56,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:10:56,620 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 8 states. [2020-08-22 01:10:57,027 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:10:57,350 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:10:57,640 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:10:57,871 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:10:59,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:10:59,105 INFO L93 Difference]: Finished difference Result 245 states and 303 transitions. [2020-08-22 01:10:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 01:10:59,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-22 01:10:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:10:59,110 INFO L225 Difference]: With dead ends: 245 [2020-08-22 01:10:59,110 INFO L226 Difference]: Without dead ends: 148 [2020-08-22 01:10:59,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 01:10:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-22 01:10:59,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2020-08-22 01:10:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-08-22 01:10:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-08-22 01:10:59,147 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 51 [2020-08-22 01:10:59,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:10:59,147 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-08-22 01:10:59,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:10:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-08-22 01:10:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 01:10:59,150 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:10:59,150 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, 1, 1, 1] [2020-08-22 01:10:59,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:10:59,151 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:10:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:10:59,151 INFO L82 PathProgramCache]: Analyzing trace with hash 137025886, now seen corresponding path program 1 times [2020-08-22 01:10:59,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:10:59,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694431463] [2020-08-22 01:10:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:10:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,429 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:10:59,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:10:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:10:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:10:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:10:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:10:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-22 01:10:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:10:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:10:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 01:10:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 01:10:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:10:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:10:59,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694431463] [2020-08-22 01:10:59,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:10:59,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:10:59,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88581655] [2020-08-22 01:10:59,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:10:59,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:10:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:10:59,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:10:59,526 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 6 states. [2020-08-22 01:10:59,890 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:01,138 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:01,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:01,871 INFO L93 Difference]: Finished difference Result 342 states and 424 transitions. [2020-08-22 01:11:01,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 01:11:01,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-08-22 01:11:01,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:01,875 INFO L225 Difference]: With dead ends: 342 [2020-08-22 01:11:01,876 INFO L226 Difference]: Without dead ends: 245 [2020-08-22 01:11:01,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-22 01:11:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-08-22 01:11:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 204. [2020-08-22 01:11:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-08-22 01:11:01,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 233 transitions. [2020-08-22 01:11:01,927 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 233 transitions. Word has length 64 [2020-08-22 01:11:01,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:01,928 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 233 transitions. [2020-08-22 01:11:01,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:11:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 233 transitions. [2020-08-22 01:11:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-22 01:11:01,931 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:11:01,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:11:01,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 01:11:01,932 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:11:01,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:11:01,932 INFO L82 PathProgramCache]: Analyzing trace with hash -274572639, now seen corresponding path program 1 times [2020-08-22 01:11:01,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:11:01,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660421971] [2020-08-22 01:11:01,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:11:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,258 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:02,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:11:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:11:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:11:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:11:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-22 01:11:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 01:11:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 01:11:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 01:11:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:11:02,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660421971] [2020-08-22 01:11:02,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:11:02,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:11:02,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406535672] [2020-08-22 01:11:02,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:11:02,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:11:02,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:11:02,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:11:02,416 INFO L87 Difference]: Start difference. First operand 204 states and 233 transitions. Second operand 8 states. [2020-08-22 01:11:02,819 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:03,809 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:04,135 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:04,720 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:04,944 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:05,199 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:06,140 INFO L93 Difference]: Finished difference Result 607 states and 749 transitions. [2020-08-22 01:11:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 01:11:06,141 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-08-22 01:11:06,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:06,148 INFO L225 Difference]: With dead ends: 607 [2020-08-22 01:11:06,148 INFO L226 Difference]: Without dead ends: 427 [2020-08-22 01:11:06,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-22 01:11:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-22 01:11:06,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 363. [2020-08-22 01:11:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-08-22 01:11:06,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2020-08-22 01:11:06,272 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 78 [2020-08-22 01:11:06,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:06,272 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2020-08-22 01:11:06,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:11:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2020-08-22 01:11:06,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-22 01:11:06,274 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:11:06,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:11:06,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 01:11:06,275 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:11:06,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:11:06,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1223934493, now seen corresponding path program 1 times [2020-08-22 01:11:06,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:11:06,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418835385] [2020-08-22 01:11:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:11:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,587 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:06,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:11:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:11:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:11:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:11:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 01:11:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:11:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 01:11:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-22 01:11:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-22 01:11:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:11:06,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418835385] [2020-08-22 01:11:06,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:11:06,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 01:11:06,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189772303] [2020-08-22 01:11:06,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 01:11:06,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:11:06,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 01:11:06,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 01:11:06,744 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand 9 states. [2020-08-22 01:11:07,239 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:08,343 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:08,625 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:09,552 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:09,797 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:10,125 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:10,494 INFO L93 Difference]: Finished difference Result 466 states and 584 transitions. [2020-08-22 01:11:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 01:11:10,495 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-08-22 01:11:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:10,500 INFO L225 Difference]: With dead ends: 466 [2020-08-22 01:11:10,501 INFO L226 Difference]: Without dead ends: 463 [2020-08-22 01:11:10,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 01:11:10,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-08-22 01:11:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 363. [2020-08-22 01:11:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-08-22 01:11:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2020-08-22 01:11:10,574 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2020-08-22 01:11:10,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:10,575 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2020-08-22 01:11:10,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 01:11:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2020-08-22 01:11:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 01:11:10,577 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:11:10,577 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] [2020-08-22 01:11:10,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 01:11:10,578 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:11:10,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:11:10,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1913348729, now seen corresponding path program 1 times [2020-08-22 01:11:10,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:11:10,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102731172] [2020-08-22 01:11:10,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:11:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,843 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:10,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:11:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:11:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:11:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:11:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 01:11:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:11:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 01:11:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 01:11:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:10,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 01:11:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 01:11:11,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102731172] [2020-08-22 01:11:11,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:11:11,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 01:11:11,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19325311] [2020-08-22 01:11:11,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 01:11:11,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:11:11,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 01:11:11,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 01:11:11,027 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 9 states. [2020-08-22 01:11:11,971 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:12,283 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 01:11:12,522 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:12,775 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:13,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:13,829 INFO L93 Difference]: Finished difference Result 810 states and 1008 transitions. [2020-08-22 01:11:13,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 01:11:13,835 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-22 01:11:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:13,839 INFO L225 Difference]: With dead ends: 810 [2020-08-22 01:11:13,839 INFO L226 Difference]: Without dead ends: 471 [2020-08-22 01:11:13,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 01:11:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-08-22 01:11:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 373. [2020-08-22 01:11:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-08-22 01:11:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2020-08-22 01:11:13,914 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 98 [2020-08-22 01:11:13,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:13,914 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2020-08-22 01:11:13,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 01:11:13,915 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2020-08-22 01:11:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 01:11:13,916 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:11:13,916 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] [2020-08-22 01:11:13,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 01:11:13,917 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:11:13,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:11:13,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1019862391, now seen corresponding path program 1 times [2020-08-22 01:11:13,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:11:13,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228756627] [2020-08-22 01:11:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:11:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,184 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:14,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:11:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:11:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:11:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:11:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 01:11:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:11:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 01:11:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 01:11:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 01:11:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:14,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 01:11:14,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228756627] [2020-08-22 01:11:14,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:11:14,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 01:11:14,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393399135] [2020-08-22 01:11:14,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 01:11:14,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:11:14,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 01:11:14,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 01:11:14,336 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 11 states. [2020-08-22 01:11:14,933 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:15,179 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:15,419 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:16,004 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:16,252 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:16,486 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:11:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:17,611 INFO L93 Difference]: Finished difference Result 830 states and 1030 transitions. [2020-08-22 01:11:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 01:11:17,619 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-08-22 01:11:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:17,624 INFO L225 Difference]: With dead ends: 830 [2020-08-22 01:11:17,624 INFO L226 Difference]: Without dead ends: 481 [2020-08-22 01:11:17,626 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 [2020-08-22 01:11:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-08-22 01:11:17,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 381. [2020-08-22 01:11:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-08-22 01:11:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 433 transitions. [2020-08-22 01:11:17,694 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 433 transitions. Word has length 98 [2020-08-22 01:11:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:17,694 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 433 transitions. [2020-08-22 01:11:17,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 01:11:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 433 transitions. [2020-08-22 01:11:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 01:11:17,696 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:11:17,696 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] [2020-08-22 01:11:17,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 01:11:17,696 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:11:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:11:17,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1027621750, now seen corresponding path program 1 times [2020-08-22 01:11:17,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:11:17,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046994824] [2020-08-22 01:11:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:11:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:17,980 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:17,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:11:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:11:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:11:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:11:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 01:11:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:11:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 01:11:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 01:11:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 01:11:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 01:11:18,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046994824] [2020-08-22 01:11:18,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:11:18,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 01:11:18,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982074641] [2020-08-22 01:11:18,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 01:11:18,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:11:18,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 01:11:18,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 01:11:18,134 INFO L87 Difference]: Start difference. First operand 381 states and 433 transitions. Second operand 7 states. [2020-08-22 01:11:18,679 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:19,163 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:21,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:21,223 INFO L93 Difference]: Finished difference Result 1133 states and 1452 transitions. [2020-08-22 01:11:21,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 01:11:21,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-08-22 01:11:21,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:21,229 INFO L225 Difference]: With dead ends: 1133 [2020-08-22 01:11:21,230 INFO L226 Difference]: Without dead ends: 776 [2020-08-22 01:11:21,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-22 01:11:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-08-22 01:11:21,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 677. [2020-08-22 01:11:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-08-22 01:11:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 803 transitions. [2020-08-22 01:11:21,401 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 803 transitions. Word has length 98 [2020-08-22 01:11:21,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:21,401 INFO L479 AbstractCegarLoop]: Abstraction has 677 states and 803 transitions. [2020-08-22 01:11:21,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 01:11:21,402 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 803 transitions. [2020-08-22 01:11:21,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 01:11:21,404 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:11:21,404 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] [2020-08-22 01:11:21,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 01:11:21,405 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:11:21,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:11:21,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1865521988, now seen corresponding path program 1 times [2020-08-22 01:11:21,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:11:21,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70708568] [2020-08-22 01:11:21,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:11:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,714 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:21,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:11:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:11:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:11:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:11:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 01:11:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 01:11:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 01:11:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 01:11:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:21,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:22,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 01:11:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:22,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 01:11:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 01:11:22,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70708568] [2020-08-22 01:11:22,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 01:11:22,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 01:11:22,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730136351] [2020-08-22 01:11:22,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 01:11:22,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:11:22,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 01:11:22,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-08-22 01:11:22,044 INFO L87 Difference]: Start difference. First operand 677 states and 803 transitions. Second operand 17 states. [2020-08-22 01:11:22,772 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:23,162 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 01:11:23,398 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 01:11:23,643 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 01:11:24,231 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:25,240 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:25,536 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:25,783 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:26,056 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:26,356 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:26,626 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:27,162 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-22 01:11:27,702 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-22 01:11:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:29,638 INFO L93 Difference]: Finished difference Result 1398 states and 1726 transitions. [2020-08-22 01:11:29,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 01:11:29,639 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 102 [2020-08-22 01:11:29,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:29,644 INFO L225 Difference]: With dead ends: 1398 [2020-08-22 01:11:29,644 INFO L226 Difference]: Without dead ends: 745 [2020-08-22 01:11:29,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=304, Invalid=1256, Unknown=0, NotChecked=0, Total=1560 [2020-08-22 01:11:29,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-08-22 01:11:29,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 649. [2020-08-22 01:11:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-22 01:11:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 757 transitions. [2020-08-22 01:11:29,782 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 757 transitions. Word has length 102 [2020-08-22 01:11:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:29,783 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 757 transitions. [2020-08-22 01:11:29,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 01:11:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 757 transitions. [2020-08-22 01:11:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 01:11:29,786 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:11:29,787 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] [2020-08-22 01:11:29,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 01:11:29,788 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:11:29,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:11:29,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1153565628, now seen corresponding path program 1 times [2020-08-22 01:11:29,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:11:29,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664231809] [2020-08-22 01:11:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:11:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,069 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:30,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:11:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:11:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:11:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:11:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 01:11:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 01:11:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 01:11:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:11:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 01:11:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 01:11:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-22 01:11:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-22 01:11:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 01:11:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 01:11:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 01:11:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 01:11:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 01:11:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:11:30,418 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-22 01:11:30,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664231809] [2020-08-22 01:11:30,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 01:11:30,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 01:11:30,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991151867] [2020-08-22 01:11:30,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 01:11:30,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:11:30,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 01:11:30,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-22 01:11:30,422 INFO L87 Difference]: Start difference. First operand 649 states and 757 transitions. Second operand 18 states. [2020-08-22 01:11:31,045 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:31,388 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 01:11:31,639 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 01:11:31,875 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 01:11:32,464 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:11:33,361 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:33,672 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:33,923 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:34,180 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:34,479 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:34,729 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:35,855 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:36,147 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:36,418 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:36,682 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:11:37,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:11:37,616 INFO L93 Difference]: Finished difference Result 1181 states and 1457 transitions. [2020-08-22 01:11:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-22 01:11:37,617 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 153 [2020-08-22 01:11:37,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:11:37,618 INFO L225 Difference]: With dead ends: 1181 [2020-08-22 01:11:37,618 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 01:11:37,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=338, Invalid=1554, Unknown=0, NotChecked=0, Total=1892 [2020-08-22 01:11:37,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 01:11:37,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 01:11:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 01:11:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 01:11:37,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-08-22 01:11:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:11:37,624 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 01:11:37,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 01:11:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 01:11:37,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 01:11:37,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 01:11:37,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 01:11:40,227 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-22 01:11:41,865 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-22 01:11:42,722 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 244 [2020-08-22 01:11:43,364 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-22 01:11:44,218 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 18 [2020-08-22 01:11:44,916 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 16 [2020-08-22 01:11:45,091 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-22 01:11:45,282 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2020-08-22 01:11:45,500 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22 [2020-08-22 01:11:45,674 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 1 [2020-08-22 01:11:45,867 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-22 01:11:46,045 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 24 [2020-08-22 01:11:46,227 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 24 [2020-08-22 01:11:46,421 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:11:46,583 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 1 [2020-08-22 01:11:47,078 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 20 [2020-08-22 01:11:47,254 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-08-22 01:11:47,739 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-22 01:11:47,902 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 1 [2020-08-22 01:11:48,420 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 20 [2020-08-22 01:11:48,902 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-08-22 01:11:49,390 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 25 [2020-08-22 01:11:49,867 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19