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_spec5_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:41:46,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:41:46,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:41:46,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:41:46,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:41:46,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:41:46,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:41:46,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:41:46,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:41:46,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:41:46,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:41:46,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:41:46,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:41:46,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:41:46,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:41:46,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:41:46,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:41:46,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:41:46,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:41:46,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:41:46,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:41:46,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:41:46,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:41:46,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:41:46,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:41:46,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:41:46,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:41:46,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:41:46,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:41:46,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:41:46,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:41:46,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:41:46,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:41:46,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:41:46,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:41:46,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:41:46,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:41:46,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:41:46,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:41:46,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:41:46,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:41:46,611 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 [2019-10-14 23:41:46,625 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:41:46,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:41:46,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:41:46,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:41:46,627 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:41:46,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:41:46,627 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:41:46,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:41:46,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:41:46,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:41:46,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:41:46,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:41:46,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:41:46,628 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:41:46,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:41:46,629 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:41:46,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:41:46,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:41:46,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:41:46,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:41:46,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:41:46,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:41:46,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:41:46,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:41:46,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:41:46,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:41:46,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:41:46,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:41:46,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:41:46,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:41:46,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:41:46,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:41:46,926 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:41:46,926 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:41:46,927 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-10-14 23:41:47,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b8a40a8d/cbd01ccc15ce42ba94119eb964958459/FLAG539bb2f9e [2019-10-14 23:41:47,552 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:41:47,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-10-14 23:41:47,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b8a40a8d/cbd01ccc15ce42ba94119eb964958459/FLAG539bb2f9e [2019-10-14 23:41:47,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b8a40a8d/cbd01ccc15ce42ba94119eb964958459 [2019-10-14 23:41:47,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:41:47,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:41:47,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:41:47,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:41:47,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:41:47,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:47" (1/1) ... [2019-10-14 23:41:47,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3729bd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:47, skipping insertion in model container [2019-10-14 23:41:47,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:47" (1/1) ... [2019-10-14 23:41:47,884 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:41:47,937 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:41:48,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:41:48,442 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:41:48,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:41:48,592 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:41:48,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48 WrapperNode [2019-10-14 23:41:48,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:41:48,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:41:48,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:41:48,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:41:48,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (1/1) ... [2019-10-14 23:41:48,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (1/1) ... [2019-10-14 23:41:48,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (1/1) ... [2019-10-14 23:41:48,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (1/1) ... [2019-10-14 23:41:48,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (1/1) ... [2019-10-14 23:41:48,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (1/1) ... [2019-10-14 23:41:48,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (1/1) ... [2019-10-14 23:41:48,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:41:48,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:41:48,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:41:48,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:41:48,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (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 [2019-10-14 23:41:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:41:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:41:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:41:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:41:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:41:48,764 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:41:48,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:41:48,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:41:48,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:41:48,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:41:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:41:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:41:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:41:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:41:48,767 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:41:48,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:41:48,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:41:48,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:41:48,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:41:48,770 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:41:48,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:41:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:41:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:41:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:41:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:41:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:41:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:41:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:41:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:41:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2019-10-14 23:41:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2019-10-14 23:41:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2019-10-14 23:41:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2019-10-14 23:41:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2019-10-14 23:41:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2019-10-14 23:41:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:41:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2019-10-14 23:41:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2019-10-14 23:41:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:41:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:41:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:41:48,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:41:48,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:41:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:41:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:41:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:41:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:41:48,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:41:48,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:41:48,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:41:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:41:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:41:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:41:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:41:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:41:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:41:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:41:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:41:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:41:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:41:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:41:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:41:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:41:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:41:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:41:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:41:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:41:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:41:48,782 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:41:48,782 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:41:48,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:41:48,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:41:48,783 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:41:48,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:41:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:41:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:41:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:41:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:41:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:41:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:41:48,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:41:48,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:41:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:41:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:41:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:41:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:41:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:41:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:41:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:41:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:41:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:41:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:41:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:41:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:41:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:41:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:41:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:41:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:41:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:41:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:41:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2019-10-14 23:41:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:41:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2019-10-14 23:41:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2019-10-14 23:41:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:41:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2019-10-14 23:41:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2019-10-14 23:41:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:41:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2019-10-14 23:41:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2019-10-14 23:41:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2019-10-14 23:41:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:41:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:41:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:41:50,040 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:41:50,040 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:41:50,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:50 BoogieIcfgContainer [2019-10-14 23:41:50,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:41:50,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:41:50,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:41:50,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:41:50,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:41:47" (1/3) ... [2019-10-14 23:41:50,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b050df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:50, skipping insertion in model container [2019-10-14 23:41:50,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:48" (2/3) ... [2019-10-14 23:41:50,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b050df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:50, skipping insertion in model container [2019-10-14 23:41:50,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:50" (3/3) ... [2019-10-14 23:41:50,051 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2019-10-14 23:41:50,061 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:41:50,070 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:41:50,082 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:41:50,112 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:41:50,112 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:41:50,113 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:41:50,113 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:41:50,113 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:41:50,113 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:41:50,114 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:41:50,114 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:41:50,139 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2019-10-14 23:41:50,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-14 23:41:50,152 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:50,153 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-14 23:41:50,155 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:50,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:50,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1762673243, now seen corresponding path program 1 times [2019-10-14 23:41:50,170 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:50,171 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501175374] [2019-10-14 23:41:50,171 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:50,171 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:50,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,950 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-14 23:41:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-14 23:41:51,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501175374] [2019-10-14 23:41:51,176 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:51,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:41:51,177 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301903232] [2019-10-14 23:41:51,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:41:51,183 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:51,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:41:51,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:41:51,200 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2019-10-14 23:41:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:53,704 INFO L93 Difference]: Finished difference Result 455 states and 593 transitions. [2019-10-14 23:41:53,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:41:53,706 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2019-10-14 23:41:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:53,724 INFO L225 Difference]: With dead ends: 455 [2019-10-14 23:41:53,724 INFO L226 Difference]: Without dead ends: 261 [2019-10-14 23:41:53,729 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:41:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-10-14 23:41:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 212. [2019-10-14 23:41:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-10-14 23:41:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 259 transitions. [2019-10-14 23:41:53,841 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 259 transitions. Word has length 91 [2019-10-14 23:41:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:53,842 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 259 transitions. [2019-10-14 23:41:53,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:41:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 259 transitions. [2019-10-14 23:41:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-14 23:41:53,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:53,848 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-14 23:41:53,848 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:53,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1489086657, now seen corresponding path program 1 times [2019-10-14 23:41:53,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:53,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299899420] [2019-10-14 23:41:53,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:53,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:53,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,297 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-14 23:41:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-14 23:41:54,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299899420] [2019-10-14 23:41:54,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:54,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:41:54,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252808685] [2019-10-14 23:41:54,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:41:54,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:54,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:41:54,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:41:54,444 INFO L87 Difference]: Start difference. First operand 212 states and 259 transitions. Second operand 7 states. [2019-10-14 23:41:55,304 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-14 23:41:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:57,251 INFO L93 Difference]: Finished difference Result 388 states and 489 transitions. [2019-10-14 23:41:57,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:41:57,254 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-10-14 23:41:57,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:57,259 INFO L225 Difference]: With dead ends: 388 [2019-10-14 23:41:57,259 INFO L226 Difference]: Without dead ends: 251 [2019-10-14 23:41:57,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:41:57,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-10-14 23:41:57,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 203. [2019-10-14 23:41:57,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-14 23:41:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 247 transitions. [2019-10-14 23:41:57,306 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 247 transitions. Word has length 92 [2019-10-14 23:41:57,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:57,307 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 247 transitions. [2019-10-14 23:41:57,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:41:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 247 transitions. [2019-10-14 23:41:57,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:41:57,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:57,310 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-14 23:41:57,311 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:57,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:57,311 INFO L82 PathProgramCache]: Analyzing trace with hash -2081754782, now seen corresponding path program 1 times [2019-10-14 23:41:57,312 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:57,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155025555] [2019-10-14 23:41:57,312 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:57,312 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:57,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,780 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-14 23:41:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:58,014 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-14 23:41:58,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155025555] [2019-10-14 23:41:58,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:58,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:41:58,015 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451898554] [2019-10-14 23:41:58,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:41:58,016 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:58,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:41:58,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:41:58,017 INFO L87 Difference]: Start difference. First operand 203 states and 247 transitions. Second operand 13 states. [2019-10-14 23:41:58,594 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-14 23:41:59,402 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 214 [2019-10-14 23:42:00,350 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 216 [2019-10-14 23:42:01,545 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-14 23:42:02,403 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2019-10-14 23:42:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:42:06,518 INFO L93 Difference]: Finished difference Result 654 states and 830 transitions. [2019-10-14 23:42:06,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-14 23:42:06,519 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2019-10-14 23:42:06,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:42:06,525 INFO L225 Difference]: With dead ends: 654 [2019-10-14 23:42:06,525 INFO L226 Difference]: Without dead ends: 496 [2019-10-14 23:42:06,527 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2019-10-14 23:42:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-10-14 23:42:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 407. [2019-10-14 23:42:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-14 23:42:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 508 transitions. [2019-10-14 23:42:06,629 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 508 transitions. Word has length 97 [2019-10-14 23:42:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:42:06,630 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 508 transitions. [2019-10-14 23:42:06,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:42:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 508 transitions. [2019-10-14 23:42:06,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-14 23:42:06,634 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:42:06,634 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-14 23:42:06,635 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:42:06,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:42:06,635 INFO L82 PathProgramCache]: Analyzing trace with hash -995246095, now seen corresponding path program 1 times [2019-10-14 23:42:06,635 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:42:06,636 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368464473] [2019-10-14 23:42:06,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:06,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:06,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:42:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,070 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-14 23:42:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-14 23:42:07,303 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368464473] [2019-10-14 23:42:07,303 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:42:07,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:42:07,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886883146] [2019-10-14 23:42:07,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:42:07,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:42:07,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:42:07,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:42:07,305 INFO L87 Difference]: Start difference. First operand 407 states and 508 transitions. Second operand 11 states. [2019-10-14 23:42:07,925 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-14 23:42:09,214 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-14 23:42:10,594 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-14 23:42:10,933 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-14 23:42:11,535 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-14 23:42:11,938 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-14 23:42:13,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:42:13,619 INFO L93 Difference]: Finished difference Result 1064 states and 1438 transitions. [2019-10-14 23:42:13,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-14 23:42:13,625 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2019-10-14 23:42:13,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:42:13,634 INFO L225 Difference]: With dead ends: 1064 [2019-10-14 23:42:13,634 INFO L226 Difference]: Without dead ends: 702 [2019-10-14 23:42:13,637 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=220, Invalid=536, Unknown=0, NotChecked=0, Total=756 [2019-10-14 23:42:13,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-14 23:42:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 628. [2019-10-14 23:42:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-10-14 23:42:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 795 transitions. [2019-10-14 23:42:13,800 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 795 transitions. Word has length 103 [2019-10-14 23:42:13,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:42:13,801 INFO L462 AbstractCegarLoop]: Abstraction has 628 states and 795 transitions. [2019-10-14 23:42:13,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:42:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 795 transitions. [2019-10-14 23:42:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-14 23:42:13,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:42:13,805 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:42:13,805 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:42:13,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:42:13,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2077668553, now seen corresponding path program 1 times [2019-10-14 23:42:13,806 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:42:13,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901259653] [2019-10-14 23:42:13,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:13,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:13,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:42:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,172 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-14 23:42:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-14 23:42:14,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901259653] [2019-10-14 23:42:14,492 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:42:14,492 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-14 23:42:14,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21575793] [2019-10-14 23:42:14,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-14 23:42:14,493 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:42:14,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-14 23:42:14,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:42:14,494 INFO L87 Difference]: Start difference. First operand 628 states and 795 transitions. Second operand 14 states. [2019-10-14 23:42:15,380 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-14 23:42:15,971 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-14 23:42:17,445 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-14 23:42:17,895 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-14 23:42:18,273 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-14 23:42:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:42:20,240 INFO L93 Difference]: Finished difference Result 1314 states and 1796 transitions. [2019-10-14 23:42:20,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-14 23:42:20,242 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2019-10-14 23:42:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:42:20,249 INFO L225 Difference]: With dead ends: 1314 [2019-10-14 23:42:20,250 INFO L226 Difference]: Without dead ends: 731 [2019-10-14 23:42:20,252 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2019-10-14 23:42:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2019-10-14 23:42:20,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 639. [2019-10-14 23:42:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-14 23:42:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 807 transitions. [2019-10-14 23:42:20,372 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 807 transitions. Word has length 136 [2019-10-14 23:42:20,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:42:20,373 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 807 transitions. [2019-10-14 23:42:20,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-14 23:42:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 807 transitions. [2019-10-14 23:42:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-14 23:42:20,376 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:42:20,376 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:42:20,376 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:42:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:42:20,377 INFO L82 PathProgramCache]: Analyzing trace with hash -232301387, now seen corresponding path program 1 times [2019-10-14 23:42:20,377 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:42:20,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289035396] [2019-10-14 23:42:20,377 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:20,377 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:20,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:42:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,718 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-14 23:42:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-14 23:42:20,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289035396] [2019-10-14 23:42:20,965 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:42:20,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:42:20,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472664379] [2019-10-14 23:42:20,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:42:20,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:42:20,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:42:20,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:42:20,967 INFO L87 Difference]: Start difference. First operand 639 states and 807 transitions. Second operand 11 states. [2019-10-14 23:42:22,888 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-14 23:42:23,212 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2019-10-14 23:42:23,563 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-14 23:42:23,917 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-14 23:42:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:42:25,610 INFO L93 Difference]: Finished difference Result 1333 states and 1816 transitions. [2019-10-14 23:42:25,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:42:25,611 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2019-10-14 23:42:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:42:25,618 INFO L225 Difference]: With dead ends: 1333 [2019-10-14 23:42:25,619 INFO L226 Difference]: Without dead ends: 739 [2019-10-14 23:42:25,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:42:25,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-10-14 23:42:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 649. [2019-10-14 23:42:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-10-14 23:42:25,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 817 transitions. [2019-10-14 23:42:25,770 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 817 transitions. Word has length 136 [2019-10-14 23:42:25,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:42:25,772 INFO L462 AbstractCegarLoop]: Abstraction has 649 states and 817 transitions. [2019-10-14 23:42:25,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:42:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 817 transitions. [2019-10-14 23:42:25,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-14 23:42:25,777 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:42:25,778 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:42:25,778 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:42:25,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:42:25,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1768602104, now seen corresponding path program 1 times [2019-10-14 23:42:25,779 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:42:25,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776496704] [2019-10-14 23:42:25,779 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:25,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:42:25,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:42:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,170 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-14 23:42:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:42:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-14 23:42:26,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776496704] [2019-10-14 23:42:26,392 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:42:26,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:42:26,392 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94625240] [2019-10-14 23:42:26,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:42:26,393 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:42:26,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:42:26,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:42:26,394 INFO L87 Difference]: Start difference. First operand 649 states and 817 transitions. Second operand 9 states. [2019-10-14 23:42:26,973 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 213