/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:58:35,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:58:35,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:58:35,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:58:35,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:58:35,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:58:35,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:58:35,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:58:35,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:58:35,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:58:35,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:58:35,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:58:35,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:58:35,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:58:35,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:58:35,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:58:35,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:58:35,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:58:35,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:58:35,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:58:35,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:58:35,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:58:35,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:58:35,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:58:35,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:58:35,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:58:35,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:58:35,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:58:35,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:58:35,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:58:35,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:58:35,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:58:35,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:58:35,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:58:35,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:58:35,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:58:35,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:58:35,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:58:35,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:58:35,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:58:35,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:58:35,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:58:35,806 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:58:35,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:58:35,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:58:35,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:58:35,809 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:58:35,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:58:35,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:58:35,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:58:35,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:58:35,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:58:35,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:58:35,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:58:35,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:58:35,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:58:35,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:58:35,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:58:35,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:58:35,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:58:35,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:58:35,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:58:35,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:58:35,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:58:35,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:58:35,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:58:35,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:58:35,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:58:35,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:58:35,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:58:35,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:58:36,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:58:36,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:58:36,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:58:36,132 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:58:36,132 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:58:36,133 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product51.cil.c [2019-11-06 21:58:36,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8e1d9525/30c4c2b8549542bfae5067c58cb2b458/FLAGaff00779c [2019-11-06 21:58:36,690 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:58:36,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product51.cil.c [2019-11-06 21:58:36,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8e1d9525/30c4c2b8549542bfae5067c58cb2b458/FLAGaff00779c [2019-11-06 21:58:37,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8e1d9525/30c4c2b8549542bfae5067c58cb2b458 [2019-11-06 21:58:37,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:58:37,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:58:37,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:58:37,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:58:37,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:58:37,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4945b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37, skipping insertion in model container [2019-11-06 21:58:37,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,061 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:58:37,107 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:58:37,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:58:37,598 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:58:37,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:58:37,735 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:58:37,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37 WrapperNode [2019-11-06 21:58:37,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:58:37,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:58:37,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:58:37,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:58:37,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... [2019-11-06 21:58:37,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:58:37,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:58:37,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:58:37,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:58:37,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:58:37,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:58:37,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:58:37,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:58:37,886 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:58:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:58:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 21:58:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 21:58:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 21:58:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 21:58:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 21:58:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 21:58:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 21:58:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 21:58:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 21:58:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 21:58:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-11-06 21:58:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:58:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:58:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:58:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:58:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:58:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:58:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 21:58:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 21:58:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 21:58:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 21:58:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 21:58:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 21:58:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 21:58:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 21:58:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:58:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:58:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:58:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:58:37,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:58:37,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:58:37,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:58:37,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:58:37,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:58:37,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:58:37,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:58:37,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:58:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:58:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:58:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:58:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 21:58:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 21:58:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-11-06 21:58:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:58:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:58:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:58:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 21:58:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 21:58:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 21:58:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 21:58:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 21:58:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 21:58:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 21:58:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 21:58:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 21:58:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:58:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 21:58:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 21:58:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 21:58:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 21:58:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 21:58:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 21:58:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:58:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:58:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:58:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:58:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:58:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:58:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:58:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 21:58:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:58:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:58:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:58:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:58:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:58:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:58:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:58:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:58:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:58:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:58:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:58:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:58:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:58:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:58:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:58:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:58:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:58:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:58:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:58:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:58:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:58:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:58:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:58:39,011 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:58:39,011 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 21:58:39,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:39 BoogieIcfgContainer [2019-11-06 21:58:39,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:58:39,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:58:39,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:58:39,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:58:39,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:37" (1/3) ... [2019-11-06 21:58:39,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452396d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:39, skipping insertion in model container [2019-11-06 21:58:39,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37" (2/3) ... [2019-11-06 21:58:39,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452396d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:39, skipping insertion in model container [2019-11-06 21:58:39,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:39" (3/3) ... [2019-11-06 21:58:39,021 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2019-11-06 21:58:39,031 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:58:39,040 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:58:39,051 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:58:39,078 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:58:39,078 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:58:39,078 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:58:39,079 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:58:39,079 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:58:39,079 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:58:39,079 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:58:39,079 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:58:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2019-11-06 21:58:39,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-06 21:58:39,112 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:39,113 INFO L410 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] [2019-11-06 21:58:39,115 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:39,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2010639633, now seen corresponding path program 1 times [2019-11-06 21:58:39,131 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:39,131 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138547048] [2019-11-06 21:58:39,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,836 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:39,964 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138547048] [2019-11-06 21:58:39,971 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:39,971 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 21:58:39,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895553209] [2019-11-06 21:58:39,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:58:39,979 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:39,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:58:39,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:58:39,996 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 4 states. [2019-11-06 21:58:41,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:41,202 INFO L93 Difference]: Finished difference Result 311 states and 406 transitions. [2019-11-06 21:58:41,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:58:41,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-11-06 21:58:41,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:41,221 INFO L225 Difference]: With dead ends: 311 [2019-11-06 21:58:41,221 INFO L226 Difference]: Without dead ends: 173 [2019-11-06 21:58:41,228 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:58:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-06 21:58:41,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 139. [2019-11-06 21:58:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-11-06 21:58:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2019-11-06 21:58:41,333 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 51 [2019-11-06 21:58:41,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:41,334 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2019-11-06 21:58:41,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:58:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2019-11-06 21:58:41,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-06 21:58:41,338 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:41,338 INFO L410 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] [2019-11-06 21:58:41,339 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:41,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:41,339 INFO L82 PathProgramCache]: Analyzing trace with hash -119912956, now seen corresponding path program 1 times [2019-11-06 21:58:41,339 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:41,339 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552260086] [2019-11-06 21:58:41,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,735 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:41,783 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552260086] [2019-11-06 21:58:41,784 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:41,784 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:58:41,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966290113] [2019-11-06 21:58:41,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:58:41,786 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:41,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:58:41,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:58:41,787 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 5 states. [2019-11-06 21:58:42,295 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:43,267 INFO L93 Difference]: Finished difference Result 250 states and 309 transitions. [2019-11-06 21:58:43,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:58:43,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-11-06 21:58:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:43,272 INFO L225 Difference]: With dead ends: 250 [2019-11-06 21:58:43,272 INFO L226 Difference]: Without dead ends: 163 [2019-11-06 21:58:43,274 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:58:43,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-06 21:58:43,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 130. [2019-11-06 21:58:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-06 21:58:43,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2019-11-06 21:58:43,311 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 52 [2019-11-06 21:58:43,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:43,312 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2019-11-06 21:58:43,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:58:43,312 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2019-11-06 21:58:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-06 21:58:43,314 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:43,314 INFO L410 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] [2019-11-06 21:58:43,315 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:43,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:43,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1399098738, now seen corresponding path program 1 times [2019-11-06 21:58:43,315 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:43,316 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107275427] [2019-11-06 21:58:43,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,658 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:43,807 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107275427] [2019-11-06 21:58:43,807 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:43,807 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:58:43,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741758782] [2019-11-06 21:58:43,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:58:43,809 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:43,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:58:43,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:58:43,810 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 9 states. [2019-11-06 21:58:44,301 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:44,684 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 21:58:44,981 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:45,261 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:46,152 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:48,351 INFO L93 Difference]: Finished difference Result 438 states and 552 transitions. [2019-11-06 21:58:48,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 21:58:48,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-11-06 21:58:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:48,358 INFO L225 Difference]: With dead ends: 438 [2019-11-06 21:58:48,358 INFO L226 Difference]: Without dead ends: 336 [2019-11-06 21:58:48,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-11-06 21:58:48,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-11-06 21:58:48,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 275. [2019-11-06 21:58:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-11-06 21:58:48,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 334 transitions. [2019-11-06 21:58:48,427 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 334 transitions. Word has length 56 [2019-11-06 21:58:48,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:48,428 INFO L462 AbstractCegarLoop]: Abstraction has 275 states and 334 transitions. [2019-11-06 21:58:48,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:58:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 334 transitions. [2019-11-06 21:58:48,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-06 21:58:48,431 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:48,432 INFO L410 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] [2019-11-06 21:58:48,432 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1261702676, now seen corresponding path program 1 times [2019-11-06 21:58:48,432 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:48,433 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11470040] [2019-11-06 21:58:48,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,773 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:48,868 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11470040] [2019-11-06 21:58:48,869 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:48,869 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:58:48,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374755625] [2019-11-06 21:58:48,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:58:48,870 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:48,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:58:48,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:58:48,870 INFO L87 Difference]: Start difference. First operand 275 states and 334 transitions. Second operand 9 states. [2019-11-06 21:58:49,421 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:50,740 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:51,152 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:51,452 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:51,810 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:53,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:53,142 INFO L93 Difference]: Finished difference Result 875 states and 1153 transitions. [2019-11-06 21:58:53,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 21:58:53,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-11-06 21:58:53,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:53,148 INFO L225 Difference]: With dead ends: 875 [2019-11-06 21:58:53,149 INFO L226 Difference]: Without dead ends: 628 [2019-11-06 21:58:53,150 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-11-06 21:58:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2019-11-06 21:58:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 498. [2019-11-06 21:58:53,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2019-11-06 21:58:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 608 transitions. [2019-11-06 21:58:53,272 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 608 transitions. Word has length 62 [2019-11-06 21:58:53,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:53,273 INFO L462 AbstractCegarLoop]: Abstraction has 498 states and 608 transitions. [2019-11-06 21:58:53,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:58:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 608 transitions. [2019-11-06 21:58:53,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-06 21:58:53,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:53,276 INFO L410 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] [2019-11-06 21:58:53,277 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:53,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:53,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1700300984, now seen corresponding path program 1 times [2019-11-06 21:58:53,277 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:53,277 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040506487] [2019-11-06 21:58:53,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,576 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:53,681 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040506487] [2019-11-06 21:58:53,681 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:53,681 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:58:53,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684613463] [2019-11-06 21:58:53,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:58:53,682 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:53,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:58:53,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:58:53,683 INFO L87 Difference]: Start difference. First operand 498 states and 608 transitions. Second operand 10 states. [2019-11-06 21:58:54,210 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:55,289 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:55,605 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:55,946 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:56,595 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:57,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:57,929 INFO L93 Difference]: Finished difference Result 1379 states and 1882 transitions. [2019-11-06 21:58:57,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-06 21:58:57,930 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-11-06 21:58:57,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:57,936 INFO L225 Difference]: With dead ends: 1379 [2019-11-06 21:58:57,936 INFO L226 Difference]: Without dead ends: 909 [2019-11-06 21:58:57,939 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2019-11-06 21:58:57,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2019-11-06 21:58:58,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 713. [2019-11-06 21:58:58,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-11-06 21:58:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 867 transitions. [2019-11-06 21:58:58,091 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 867 transitions. Word has length 66 [2019-11-06 21:58:58,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:58,092 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 867 transitions. [2019-11-06 21:58:58,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:58:58,092 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 867 transitions. [2019-11-06 21:58:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:58:58,094 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:58,095 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:58:58,095 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:58,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1342584408, now seen corresponding path program 1 times [2019-11-06 21:58:58,096 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:58,096 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081866618] [2019-11-06 21:58:58,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,352 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:58,497 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081866618] [2019-11-06 21:58:58,498 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:58,500 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:58:58,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665500604] [2019-11-06 21:58:58,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:58:58,501 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:58,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:58:58,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:58:58,502 INFO L87 Difference]: Start difference. First operand 713 states and 867 transitions. Second operand 10 states. [2019-11-06 21:58:59,696 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:59,984 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 21:59:00,302 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:00,579 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:01,745 INFO L93 Difference]: Finished difference Result 1670 states and 2230 transitions. [2019-11-06 21:59:01,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 21:59:01,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-11-06 21:59:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:01,754 INFO L225 Difference]: With dead ends: 1670 [2019-11-06 21:59:01,754 INFO L226 Difference]: Without dead ends: 985 [2019-11-06 21:59:01,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:59:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2019-11-06 21:59:01,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 739. [2019-11-06 21:59:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2019-11-06 21:59:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 895 transitions. [2019-11-06 21:59:01,926 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 895 transitions. Word has length 88 [2019-11-06 21:59:01,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:01,927 INFO L462 AbstractCegarLoop]: Abstraction has 739 states and 895 transitions. [2019-11-06 21:59:01,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:59:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 895 transitions. [2019-11-06 21:59:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:59:01,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:01,936 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:01,936 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:01,937 INFO L82 PathProgramCache]: Analyzing trace with hash -640984534, now seen corresponding path program 1 times [2019-11-06 21:59:01,937 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:01,937 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277881204] [2019-11-06 21:59:01,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,251 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:02,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:02,407 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277881204] [2019-11-06 21:59:02,408 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:02,408 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 21:59:02,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980273958] [2019-11-06 21:59:02,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 21:59:02,409 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:02,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 21:59:02,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:59:02,410 INFO L87 Difference]: Start difference. First operand 739 states and 895 transitions. Second operand 12 states. [2019-11-06 21:59:03,120 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:03,381 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:03,642 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:04,445 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:04,755 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:05,038 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:06,674 INFO L93 Difference]: Finished difference Result 1724 states and 2339 transitions. [2019-11-06 21:59:06,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 21:59:06,676 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-11-06 21:59:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:06,685 INFO L225 Difference]: With dead ends: 1724 [2019-11-06 21:59:06,685 INFO L226 Difference]: Without dead ends: 1013 [2019-11-06 21:59:06,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-11-06 21:59:06,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2019-11-06 21:59:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 755. [2019-11-06 21:59:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2019-11-06 21:59:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 911 transitions. [2019-11-06 21:59:06,879 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 911 transitions. Word has length 88 [2019-11-06 21:59:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:06,880 INFO L462 AbstractCegarLoop]: Abstraction has 755 states and 911 transitions. [2019-11-06 21:59:06,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 21:59:06,880 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 911 transitions. [2019-11-06 21:59:06,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:59:06,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:06,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:06,883 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:06,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:06,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1084496363, now seen corresponding path program 1 times [2019-11-06 21:59:06,884 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:06,885 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131730890] [2019-11-06 21:59:06,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,177 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:07,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:07,305 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131730890] [2019-11-06 21:59:07,305 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:07,305 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:59:07,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217723854] [2019-11-06 21:59:07,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:59:07,307 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:07,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:59:07,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:59:07,307 INFO L87 Difference]: Start difference. First operand 755 states and 911 transitions. Second operand 8 states. [2019-11-06 21:59:07,706 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:08,260 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:11,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:11,205 INFO L93 Difference]: Finished difference Result 2626 states and 3597 transitions. [2019-11-06 21:59:11,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-06 21:59:11,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-11-06 21:59:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:11,226 INFO L225 Difference]: With dead ends: 2626 [2019-11-06 21:59:11,226 INFO L226 Difference]: Without dead ends: 1899 [2019-11-06 21:59:11,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2019-11-06 21:59:11,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2019-11-06 21:59:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1555. [2019-11-06 21:59:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1555 states. [2019-11-06 21:59:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1901 transitions. [2019-11-06 21:59:11,549 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1901 transitions. Word has length 88 [2019-11-06 21:59:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:11,549 INFO L462 AbstractCegarLoop]: Abstraction has 1555 states and 1901 transitions. [2019-11-06 21:59:11,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 21:59:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1901 transitions. [2019-11-06 21:59:11,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 21:59:11,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:11,553 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:11,553 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:11,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:11,554 INFO L82 PathProgramCache]: Analyzing trace with hash 269339525, now seen corresponding path program 1 times [2019-11-06 21:59:11,554 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:11,554 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368401678] [2019-11-06 21:59:11,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,870 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:11,973 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368401678] [2019-11-06 21:59:11,974 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:11,974 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:59:11,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339057648] [2019-11-06 21:59:11,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:59:11,975 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:11,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:59:11,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:59:11,975 INFO L87 Difference]: Start difference. First operand 1555 states and 1901 transitions. Second operand 8 states. [2019-11-06 21:59:12,421 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:15,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:15,150 INFO L93 Difference]: Finished difference Result 3162 states and 4351 transitions. [2019-11-06 21:59:15,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-06 21:59:15,150 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-11-06 21:59:15,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:15,171 INFO L225 Difference]: With dead ends: 3162 [2019-11-06 21:59:15,172 INFO L226 Difference]: Without dead ends: 3159 [2019-11-06 21:59:15,174 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2019-11-06 21:59:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states.