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_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:37:31,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:37:31,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:37:31,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:37:31,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:37:31,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:37:31,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:37:31,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:37:31,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:37:31,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:37:31,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:37:31,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:37:31,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:37:31,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:37:31,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:37:31,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:37:31,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:37:31,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:37:31,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:37:31,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:37:31,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:37:31,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:37:31,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:37:31,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:37:31,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:37:31,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:37:31,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:37:31,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:37:31,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:37:31,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:37:31,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:37:31,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:37:31,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:37:31,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:37:31,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:37:31,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:37:31,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:37:31,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:37:31,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:37:31,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:37:31,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:37:31,570 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 [2019-10-13 19:37:31,591 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:37:31,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:37:31,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:37:31,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:37:31,594 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:37:31,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:37:31,595 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:37:31,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:37:31,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:37:31,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:37:31,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:37:31,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:37:31,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:37:31,597 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:37:31,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:37:31,597 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:37:31,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:37:31,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:37:31,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:37:31,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:37:31,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:37:31,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:37:31,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:37:31,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:37:31,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:37:31,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:37:31,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:37:31,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:37:31,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:37:31,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:37:31,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:37:31,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:37:31,899 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:37:31,899 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:37:31,900 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-10-13 19:37:31,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd8fc3f31/aa82b78557114fcb9a90ed3c142902ef/FLAG82f0f8c98 [2019-10-13 19:37:32,580 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:37:32,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-10-13 19:37:32,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd8fc3f31/aa82b78557114fcb9a90ed3c142902ef/FLAG82f0f8c98 [2019-10-13 19:37:32,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd8fc3f31/aa82b78557114fcb9a90ed3c142902ef [2019-10-13 19:37:32,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:37:32,865 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:37:32,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:37:32,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:37:32,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:37:32,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:32" (1/1) ... [2019-10-13 19:37:32,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f6a702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:32, skipping insertion in model container [2019-10-13 19:37:32,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:32" (1/1) ... [2019-10-13 19:37:32,880 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:37:32,927 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:37:33,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:37:33,387 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:37:33,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:37:33,561 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:37:33,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33 WrapperNode [2019-10-13 19:37:33,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:37:33,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:37:33,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:37:33,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:37:33,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (1/1) ... [2019-10-13 19:37:33,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (1/1) ... [2019-10-13 19:37:33,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (1/1) ... [2019-10-13 19:37:33,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (1/1) ... [2019-10-13 19:37:33,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (1/1) ... [2019-10-13 19:37:33,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (1/1) ... [2019-10-13 19:37:33,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (1/1) ... [2019-10-13 19:37:33,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:37:33,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:37:33,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:37:33,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:37:33,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (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 [2019-10-13 19:37:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:37:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:37:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:37:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:37:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:37:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:37:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:37:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:37:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:37:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:37:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:37:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:37:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:37:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:37:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:37:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:37:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:37:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:37:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:37:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:37:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:37:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:37:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:37:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:37:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:37:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:37:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:37:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:37:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:37:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:37:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:37:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:37:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:37:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:37:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:37:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:37:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:37:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:37:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:37:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:37:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:37:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:37:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:37:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:37:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:37:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:37:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:37:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:37:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:37:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:37:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:37:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:37:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:37:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:37:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:37:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:37:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:37:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:37:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:37:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:37:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:37:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:37:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:37:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:37:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:37:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:37:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:37:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:37:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:37:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:37:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:37:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:37:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:37:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:37:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:37:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:37:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:37:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:37:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:37:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:37:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:37:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:37:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:37:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:37:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:37:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:37:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:37:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:37:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:37:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:37:34,820 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:37:34,821 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:37:34,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:34 BoogieIcfgContainer [2019-10-13 19:37:34,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:37:34,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:37:34,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:37:34,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:37:34,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:37:32" (1/3) ... [2019-10-13 19:37:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26db703e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:34, skipping insertion in model container [2019-10-13 19:37:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:33" (2/3) ... [2019-10-13 19:37:34,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26db703e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:34, skipping insertion in model container [2019-10-13 19:37:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:34" (3/3) ... [2019-10-13 19:37:34,831 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2019-10-13 19:37:34,841 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:37:34,850 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:37:34,862 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:37:34,889 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:37:34,890 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:37:34,890 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:37:34,890 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:37:34,890 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:37:34,891 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:37:34,891 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:37:34,891 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:37:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-10-13 19:37:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:37:34,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:34,926 INFO L380 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] [2019-10-13 19:37:34,928 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:34,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:34,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1636335383, now seen corresponding path program 1 times [2019-10-13 19:37:34,944 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:34,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971620621] [2019-10-13 19:37:34,945 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:34,945 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:34,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,681 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:35,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971620621] [2019-10-13 19:37:35,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:35,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:37:35,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27394939] [2019-10-13 19:37:35,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:37:35,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:35,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:37:35,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:37:35,818 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 3 states. [2019-10-13 19:37:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:36,837 INFO L93 Difference]: Finished difference Result 270 states and 355 transitions. [2019-10-13 19:37:36,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:37:36,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-13 19:37:36,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:36,856 INFO L225 Difference]: With dead ends: 270 [2019-10-13 19:37:36,856 INFO L226 Difference]: Without dead ends: 146 [2019-10-13 19:37:36,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:37:36,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-10-13 19:37:36,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2019-10-13 19:37:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-13 19:37:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2019-10-13 19:37:36,968 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 52 [2019-10-13 19:37:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:36,969 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2019-10-13 19:37:36,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:37:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2019-10-13 19:37:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 19:37:36,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:36,983 INFO L380 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] [2019-10-13 19:37:36,984 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:36,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:36,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1439054439, now seen corresponding path program 1 times [2019-10-13 19:37:36,985 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:36,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053666133] [2019-10-13 19:37:36,986 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:36,986 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:36,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,379 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:37,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053666133] [2019-10-13 19:37:37,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:37,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:37:37,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021030243] [2019-10-13 19:37:37,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:37:37,464 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:37,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:37:37,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:37:37,465 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 4 states. [2019-10-13 19:37:37,898 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:38,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:38,631 INFO L93 Difference]: Finished difference Result 199 states and 242 transitions. [2019-10-13 19:37:38,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:37:38,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-13 19:37:38,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:38,635 INFO L225 Difference]: With dead ends: 199 [2019-10-13 19:37:38,636 INFO L226 Difference]: Without dead ends: 130 [2019-10-13 19:37:38,637 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:37:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-13 19:37:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2019-10-13 19:37:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-13 19:37:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2019-10-13 19:37:38,669 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 53 [2019-10-13 19:37:38,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:38,669 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2019-10-13 19:37:38,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:37:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2019-10-13 19:37:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 19:37:38,671 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:38,672 INFO L380 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] [2019-10-13 19:37:38,672 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:38,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:38,672 INFO L82 PathProgramCache]: Analyzing trace with hash -580669987, now seen corresponding path program 1 times [2019-10-13 19:37:38,672 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:38,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591196912] [2019-10-13 19:37:38,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:38,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:38,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,992 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:39,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:39,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591196912] [2019-10-13 19:37:39,110 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:39,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:39,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644390351] [2019-10-13 19:37:39,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:39,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:39,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:39,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:39,112 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 8 states. [2019-10-13 19:37:39,574 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:37:39,911 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:40,207 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:40,476 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:41,615 INFO L93 Difference]: Finished difference Result 212 states and 260 transitions. [2019-10-13 19:37:41,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:37:41,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-10-13 19:37:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:41,620 INFO L225 Difference]: With dead ends: 212 [2019-10-13 19:37:41,620 INFO L226 Difference]: Without dead ends: 130 [2019-10-13 19:37:41,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:37:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-13 19:37:41,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2019-10-13 19:37:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-13 19:37:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2019-10-13 19:37:41,652 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 58 [2019-10-13 19:37:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:41,653 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2019-10-13 19:37:41,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:41,653 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2019-10-13 19:37:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-13 19:37:41,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:41,655 INFO L380 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] [2019-10-13 19:37:41,655 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:41,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:41,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2122897594, now seen corresponding path program 1 times [2019-10-13 19:37:41,656 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:41,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76286045] [2019-10-13 19:37:41,656 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:41,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:41,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,983 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:42,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76286045] [2019-10-13 19:37:42,071 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:42,071 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:37:42,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726175548] [2019-10-13 19:37:42,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:37:42,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:42,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:37:42,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:37:42,073 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 6 states. [2019-10-13 19:37:42,407 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:37:43,652 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:44,190 INFO L93 Difference]: Finished difference Result 312 states and 384 transitions. [2019-10-13 19:37:44,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:37:44,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-10-13 19:37:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:44,194 INFO L225 Difference]: With dead ends: 312 [2019-10-13 19:37:44,194 INFO L226 Difference]: Without dead ends: 230 [2019-10-13 19:37:44,196 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:44,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-10-13 19:37:44,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 187. [2019-10-13 19:37:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-13 19:37:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 214 transitions. [2019-10-13 19:37:44,239 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 214 transitions. Word has length 66 [2019-10-13 19:37:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:44,239 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 214 transitions. [2019-10-13 19:37:44,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:37:44,240 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 214 transitions. [2019-10-13 19:37:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-13 19:37:44,241 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:44,241 INFO L380 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] [2019-10-13 19:37:44,241 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:44,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:44,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1628331355, now seen corresponding path program 1 times [2019-10-13 19:37:44,242 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:44,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119939607] [2019-10-13 19:37:44,243 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:44,243 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:44,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,577 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:44,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119939607] [2019-10-13 19:37:44,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:44,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:44,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478898482] [2019-10-13 19:37:44,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:44,697 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:44,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:44,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:44,698 INFO L87 Difference]: Start difference. First operand 187 states and 214 transitions. Second operand 8 states. [2019-10-13 19:37:45,115 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:37:46,464 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:46,787 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:47,073 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:47,324 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:37:47,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:47,954 INFO L93 Difference]: Finished difference Result 513 states and 644 transitions. [2019-10-13 19:37:47,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:37:47,955 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2019-10-13 19:37:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:47,960 INFO L225 Difference]: With dead ends: 513 [2019-10-13 19:37:47,960 INFO L226 Difference]: Without dead ends: 350 [2019-10-13 19:37:47,962 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:37:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-13 19:37:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 307. [2019-10-13 19:37:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2019-10-13 19:37:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 357 transitions. [2019-10-13 19:37:48,045 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 357 transitions. Word has length 80 [2019-10-13 19:37:48,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:48,046 INFO L462 AbstractCegarLoop]: Abstraction has 307 states and 357 transitions. [2019-10-13 19:37:48,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 357 transitions. [2019-10-13 19:37:48,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-13 19:37:48,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:48,049 INFO L380 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] [2019-10-13 19:37:48,049 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:48,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:48,050 INFO L82 PathProgramCache]: Analyzing trace with hash 452882261, now seen corresponding path program 1 times [2019-10-13 19:37:48,050 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:48,050 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51519107] [2019-10-13 19:37:48,050 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:48,051 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:48,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,401 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:48,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51519107] [2019-10-13 19:37:48,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:48,496 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:37:48,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903678438] [2019-10-13 19:37:48,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:37:48,497 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:48,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:37:48,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:48,498 INFO L87 Difference]: Start difference. First operand 307 states and 357 transitions. Second operand 10 states. [2019-10-13 19:37:48,975 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:37:50,444 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:50,772 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:51,062 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:51,312 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:37:51,707 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:52,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:52,628 INFO L93 Difference]: Finished difference Result 687 states and 870 transitions. [2019-10-13 19:37:52,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:37:52,629 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2019-10-13 19:37:52,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:52,633 INFO L225 Difference]: With dead ends: 687 [2019-10-13 19:37:52,633 INFO L226 Difference]: Without dead ends: 513 [2019-10-13 19:37:52,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:37:52,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2019-10-13 19:37:52,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 441. [2019-10-13 19:37:52,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-10-13 19:37:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 520 transitions. [2019-10-13 19:37:52,734 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 520 transitions. Word has length 84 [2019-10-13 19:37:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:52,735 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 520 transitions. [2019-10-13 19:37:52,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:37:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 520 transitions. [2019-10-13 19:37:52,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-13 19:37:52,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:52,739 INFO L380 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] [2019-10-13 19:37:52,739 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:52,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:52,739 INFO L82 PathProgramCache]: Analyzing trace with hash 782648022, now seen corresponding path program 1 times [2019-10-13 19:37:52,740 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:52,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393505877] [2019-10-13 19:37:52,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:52,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:52,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,009 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:53,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393505877] [2019-10-13 19:37:53,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:53,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:53,169 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232992511] [2019-10-13 19:37:53,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:53,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:53,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:53,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:53,172 INFO L87 Difference]: Start difference. First operand 441 states and 520 transitions. Second operand 8 states. [2019-10-13 19:37:54,163 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:54,420 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:54,696 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:55,607 INFO L93 Difference]: Finished difference Result 813 states and 1003 transitions. [2019-10-13 19:37:55,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:37:55,608 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-10-13 19:37:55,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:55,612 INFO L225 Difference]: With dead ends: 813 [2019-10-13 19:37:55,612 INFO L226 Difference]: Without dead ends: 501 [2019-10-13 19:37:55,613 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:37:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-13 19:37:55,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 441. [2019-10-13 19:37:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-10-13 19:37:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 519 transitions. [2019-10-13 19:37:55,692 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 519 transitions. Word has length 84 [2019-10-13 19:37:55,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:55,692 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 519 transitions. [2019-10-13 19:37:55,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:55,693 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 519 transitions. [2019-10-13 19:37:55,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-13 19:37:55,694 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:55,695 INFO L380 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] [2019-10-13 19:37:55,695 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:55,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:55,695 INFO L82 PathProgramCache]: Analyzing trace with hash 710261464, now seen corresponding path program 1 times [2019-10-13 19:37:55,695 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:55,696 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794522514] [2019-10-13 19:37:55,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:55,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:55,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:55,966 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:37:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:56,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794522514] [2019-10-13 19:37:56,104 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:56,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:37:56,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46270366] [2019-10-13 19:37:56,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:37:56,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:56,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:37:56,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:37:56,106 INFO L87 Difference]: Start difference. First operand 441 states and 519 transitions. Second operand 12 states. [2019-10-13 19:37:56,674 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:56,949 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:57,220 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:58,045 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:58,327 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:58,646 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:58,918 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:37:59,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:59,991 INFO L93 Difference]: Finished difference Result 880 states and 1086 transitions. [2019-10-13 19:37:59,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 19:37:59,995 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2019-10-13 19:37:59,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:59,999 INFO L225 Difference]: With dead ends: 880 [2019-10-13 19:38:00,000 INFO L226 Difference]: Without dead ends: 463 [2019-10-13 19:38:00,003 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-10-13 19:38:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-10-13 19:38:00,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 414. [2019-10-13 19:38:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-13 19:38:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 485 transitions. [2019-10-13 19:38:00,089 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 485 transitions. Word has length 84 [2019-10-13 19:38:00,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:38:00,090 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 485 transitions. [2019-10-13 19:38:00,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:38:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 485 transitions. [2019-10-13 19:38:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-13 19:38:00,094 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:38:00,095 INFO L380 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] [2019-10-13 19:38:00,095 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:38:00,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:38:00,095 INFO L82 PathProgramCache]: Analyzing trace with hash 851492262, now seen corresponding path program 1 times [2019-10-13 19:38:00,095 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:38:00,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735518822] [2019-10-13 19:38:00,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:38:00,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:38:00,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:38:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,457 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:38:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:38:00,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735518822] [2019-10-13 19:38:00,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:38:00,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:38:00,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840642372] [2019-10-13 19:38:00,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:38:00,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:38:00,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:38:00,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:38:00,584 INFO L87 Difference]: Start difference. First operand 414 states and 485 transitions. Second operand 13 states. [2019-10-13 19:38:01,337 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:38:01,619 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:38:01,897 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:38:02,985 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:38:03,775 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:38:04,167 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:38:04,484 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:38:05,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:38:05,081 INFO L93 Difference]: Finished difference Result 820 states and 974 transitions. [2019-10-13 19:38:05,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:38:05,082 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2019-10-13 19:38:05,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:38:05,082 INFO L225 Difference]: With dead ends: 820 [2019-10-13 19:38:05,083 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:38:05,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2019-10-13 19:38:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:38:05,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:38:05,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:38:05,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:38:05,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2019-10-13 19:38:05,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:38:05,086 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:38:05,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:38:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:38:05,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:38:05,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:38:06,144 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-10-13 19:38:07,137 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-10-13 19:38:07,701 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-10-13 19:38:08,030 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 228 [2019-10-13 19:38:08,167 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 219 [2019-10-13 19:38:08,608 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 16 [2019-10-13 19:38:08,772 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2019-10-13 19:38:08,923 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2019-10-13 19:38:09,076 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2019-10-13 19:38:09,239 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 1 [2019-10-13 19:38:09,627 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 24 [2019-10-13 19:38:09,782 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2019-10-13 19:38:10,372 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 21 [2019-10-13 19:38:10,692 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 15 [2019-10-13 19:38:10,885 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 16