/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:59:50,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:59:50,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:59:50,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:59:50,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:59:50,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:59:50,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:59:50,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:59:50,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:59:50,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:59:50,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:59:50,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:59:50,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:59:50,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:59:50,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:59:50,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:59:50,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:59:50,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:59:50,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:59:50,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:59:50,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:59:50,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:59:50,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:59:50,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:59:50,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:59:50,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:59:50,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:59:50,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:59:50,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:59:50,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:59:50,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:59:50,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:59:50,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:59:50,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:59:50,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:59:50,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:59:50,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:59:50,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:59:50,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:59:50,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:59:50,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:59:50,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:59:50,602 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:59:50,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:59:50,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:59:50,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:59:50,608 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:59:50,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:59:50,608 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:59:50,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:59:50,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:59:50,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:59:50,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:59:50,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:59:50,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:59:50,610 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:59:50,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:59:50,611 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:59:50,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:59:50,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:59:50,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:59:50,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:59:50,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:59:50,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:59:50,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:59:50,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:59:50,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:59:50,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:59:50,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:59:50,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:59:50,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:59:50,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:59:50,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:59:50,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:59:50,920 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:59:50,921 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:59:50,921 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-11-06 21:59:50,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289b3ad95/3e39b6b45a234145a7eec32730736a17/FLAGacee2a3a7 [2019-11-06 21:59:51,505 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:59:51,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-11-06 21:59:51,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289b3ad95/3e39b6b45a234145a7eec32730736a17/FLAGacee2a3a7 [2019-11-06 21:59:51,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289b3ad95/3e39b6b45a234145a7eec32730736a17 [2019-11-06 21:59:51,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:59:51,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:59:51,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:59:51,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:59:51,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:59:51,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:51" (1/1) ... [2019-11-06 21:59:51,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562871a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:51, skipping insertion in model container [2019-11-06 21:59:51,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:51" (1/1) ... [2019-11-06 21:59:51,876 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:59:51,925 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:59:52,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:59:52,348 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:59:52,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:59:52,468 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:59:52,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52 WrapperNode [2019-11-06 21:59:52,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:59:52,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:59:52,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:59:52,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:59:52,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2019-11-06 21:59:52,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2019-11-06 21:59:52,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2019-11-06 21:59:52,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2019-11-06 21:59:52,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2019-11-06 21:59:52,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2019-11-06 21:59:52,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2019-11-06 21:59:52,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:59:52,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:59:52,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:59:52,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:59:52,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:59:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:59:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:59:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:59:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:59:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:59:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:59:52,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:59:52,650 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:59:52,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:59:52,650 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:59:52,651 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 21:59:52,651 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 21:59:52,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 21:59:52,652 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 21:59:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 21:59:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 21:59:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 21:59:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 21:59:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-06 21:59:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:59:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:59:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:59:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:59:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:59:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:59:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-11-06 21:59:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:59:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 21:59:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 21:59:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 21:59:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 21:59:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 21:59:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 21:59:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 21:59:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:59:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:59:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:59:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:59:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:59:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:59:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:59:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 21:59:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 21:59:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:59:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:59:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:59:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:59:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 21:59:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 21:59:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 21:59:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 21:59:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 21:59:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 21:59:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 21:59:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-11-06 21:59:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 21:59:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 21:59:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 21:59:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 21:59:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:59:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:59:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:59:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:59:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:59:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:59:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:59:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:59:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:59:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:59:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:59:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:59:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:59:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:59:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:59:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:59:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:59:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:59:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 21:59:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:59:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:59:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:59:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:59:53,682 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:59:53,682 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 21:59:53,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:53 BoogieIcfgContainer [2019-11-06 21:59:53,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:59:53,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:59:53,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:59:53,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:59:53,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:51" (1/3) ... [2019-11-06 21:59:53,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32114660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:53, skipping insertion in model container [2019-11-06 21:59:53,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (2/3) ... [2019-11-06 21:59:53,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32114660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:53, skipping insertion in model container [2019-11-06 21:59:53,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:53" (3/3) ... [2019-11-06 21:59:53,694 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2019-11-06 21:59:53,704 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:59:53,713 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:59:53,725 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:59:53,763 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:59:53,763 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:59:53,764 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:59:53,764 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:59:53,764 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:59:53,764 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:59:53,764 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:59:53,765 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:59:53,790 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-11-06 21:59:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-06 21:59:53,800 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:53,801 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:53,803 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:53,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:53,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1636335383, now seen corresponding path program 1 times [2019-11-06 21:59:53,818 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:53,819 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068910615] [2019-11-06 21:59:53,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,446 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 21:59:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:54,544 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068910615] [2019-11-06 21:59:54,545 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:54,545 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 21:59:54,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919393854] [2019-11-06 21:59:54,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 21:59:54,558 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:54,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 21:59:54,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 21:59:54,577 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 3 states. [2019-11-06 21:59:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:55,582 INFO L93 Difference]: Finished difference Result 270 states and 355 transitions. [2019-11-06 21:59:55,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:59:55,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-11-06 21:59:55,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:55,612 INFO L225 Difference]: With dead ends: 270 [2019-11-06 21:59:55,612 INFO L226 Difference]: Without dead ends: 146 [2019-11-06 21:59:55,619 INFO L630 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 [2019-11-06 21:59:55,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-06 21:59:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2019-11-06 21:59:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-06 21:59:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2019-11-06 21:59:55,749 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 52 [2019-11-06 21:59:55,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:55,750 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2019-11-06 21:59:55,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 21:59:55,750 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2019-11-06 21:59:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-06 21:59:55,760 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:55,760 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:55,761 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:55,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:55,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1439054439, now seen corresponding path program 1 times [2019-11-06 21:59:55,762 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:55,762 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824304517] [2019-11-06 21:59:55,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,147 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 21:59:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:56,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:56,189 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824304517] [2019-11-06 21:59:56,189 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:56,189 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 21:59:56,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229887222] [2019-11-06 21:59:56,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:59:56,191 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:56,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:59:56,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:59:56,192 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 4 states. [2019-11-06 21:59:56,634 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:57,309 INFO L93 Difference]: Finished difference Result 199 states and 242 transitions. [2019-11-06 21:59:57,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:59:57,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-11-06 21:59:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:57,312 INFO L225 Difference]: With dead ends: 199 [2019-11-06 21:59:57,312 INFO L226 Difference]: Without dead ends: 130 [2019-11-06 21:59:57,314 INFO L630 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 [2019-11-06 21:59:57,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-06 21:59:57,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2019-11-06 21:59:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-06 21:59:57,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2019-11-06 21:59:57,353 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 53 [2019-11-06 21:59:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:57,353 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2019-11-06 21:59:57,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:59:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2019-11-06 21:59:57,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-06 21:59:57,358 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:57,358 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:57,358 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:57,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:57,359 INFO L82 PathProgramCache]: Analyzing trace with hash -580669987, now seen corresponding path program 1 times [2019-11-06 21:59:57,359 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:57,359 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372359829] [2019-11-06 21:59:57,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,780 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 21:59:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:57,906 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372359829] [2019-11-06 21:59:57,906 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:57,906 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:59:57,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205565975] [2019-11-06 21:59:57,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:59:57,908 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:57,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:59:57,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:59:57,909 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 8 states. [2019-11-06 21:59:58,340 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 21:59:58,674 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:58,944 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 21:59:59,213 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:00,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:00,318 INFO L93 Difference]: Finished difference Result 212 states and 260 transitions. [2019-11-06 22:00:00,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 22:00:00,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-11-06 22:00:00,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:00,320 INFO L225 Difference]: With dead ends: 212 [2019-11-06 22:00:00,321 INFO L226 Difference]: Without dead ends: 130 [2019-11-06 22:00:00,322 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:00:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-06 22:00:00,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2019-11-06 22:00:00,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-06 22:00:00,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2019-11-06 22:00:00,352 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 58 [2019-11-06 22:00:00,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:00,352 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2019-11-06 22:00:00,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:00,352 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2019-11-06 22:00:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-06 22:00:00,353 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:00,354 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:00,354 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:00,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:00,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2122897594, now seen corresponding path program 1 times [2019-11-06 22:00:00,355 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:00,355 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400008180] [2019-11-06 22:00:00,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,687 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:00,755 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400008180] [2019-11-06 22:00:00,756 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:00,756 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:00:00,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846920134] [2019-11-06 22:00:00,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:00:00,757 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:00,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:00:00,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:00:00,757 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 6 states. [2019-11-06 22:00:01,092 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:02,275 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:02,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:02,833 INFO L93 Difference]: Finished difference Result 312 states and 384 transitions. [2019-11-06 22:00:02,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:00:02,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-11-06 22:00:02,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:02,837 INFO L225 Difference]: With dead ends: 312 [2019-11-06 22:00:02,837 INFO L226 Difference]: Without dead ends: 230 [2019-11-06 22:00:02,838 INFO L630 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 [2019-11-06 22:00:02,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-11-06 22:00:02,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 187. [2019-11-06 22:00:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-11-06 22:00:02,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 214 transitions. [2019-11-06 22:00:02,881 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 214 transitions. Word has length 66 [2019-11-06 22:00:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:02,881 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 214 transitions. [2019-11-06 22:00:02,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:00:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 214 transitions. [2019-11-06 22:00:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-06 22:00:02,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:02,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:02,883 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:02,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:02,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1628331355, now seen corresponding path program 1 times [2019-11-06 22:00:02,884 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:02,884 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054241945] [2019-11-06 22:00:02,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,213 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:03,302 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054241945] [2019-11-06 22:00:03,302 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:03,302 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:00:03,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179221498] [2019-11-06 22:00:03,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:03,303 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:03,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:03,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:00:03,304 INFO L87 Difference]: Start difference. First operand 187 states and 214 transitions. Second operand 8 states. [2019-11-06 22:00:03,734 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:05,022 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:05,331 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:05,614 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:05,861 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:06,493 INFO L93 Difference]: Finished difference Result 513 states and 644 transitions. [2019-11-06 22:00:06,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 22:00:06,494 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2019-11-06 22:00:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:06,501 INFO L225 Difference]: With dead ends: 513 [2019-11-06 22:00:06,502 INFO L226 Difference]: Without dead ends: 350 [2019-11-06 22:00:06,503 INFO L630 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 [2019-11-06 22:00:06,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-11-06 22:00:06,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 307. [2019-11-06 22:00:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2019-11-06 22:00:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 357 transitions. [2019-11-06 22:00:06,574 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 357 transitions. Word has length 80 [2019-11-06 22:00:06,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:06,574 INFO L462 AbstractCegarLoop]: Abstraction has 307 states and 357 transitions. [2019-11-06 22:00:06,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:06,574 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 357 transitions. [2019-11-06 22:00:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-06 22:00:06,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:06,576 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:06,577 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:06,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:06,577 INFO L82 PathProgramCache]: Analyzing trace with hash 452882261, now seen corresponding path program 1 times [2019-11-06 22:00:06,577 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:06,577 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566474005] [2019-11-06 22:00:06,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,887 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:07,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:07,024 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566474005] [2019-11-06 22:00:07,025 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:07,026 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:00:07,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453823603] [2019-11-06 22:00:07,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:00:07,028 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:07,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:00:07,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:00:07,029 INFO L87 Difference]: Start difference. First operand 307 states and 357 transitions. Second operand 10 states. [2019-11-06 22:00:07,585 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:09,068 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:09,401 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:09,710 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:09,969 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:10,364 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:11,336 INFO L93 Difference]: Finished difference Result 687 states and 870 transitions. [2019-11-06 22:00:11,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:00:11,337 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2019-11-06 22:00:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:11,343 INFO L225 Difference]: With dead ends: 687 [2019-11-06 22:00:11,343 INFO L226 Difference]: Without dead ends: 513 [2019-11-06 22:00:11,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:00:11,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2019-11-06 22:00:11,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 441. [2019-11-06 22:00:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-11-06 22:00:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 520 transitions. [2019-11-06 22:00:11,428 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 520 transitions. Word has length 84 [2019-11-06 22:00:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:11,428 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 520 transitions. [2019-11-06 22:00:11,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:00:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 520 transitions. [2019-11-06 22:00:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-06 22:00:11,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:11,430 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:11,431 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:11,431 INFO L82 PathProgramCache]: Analyzing trace with hash 782648022, now seen corresponding path program 1 times [2019-11-06 22:00:11,431 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:11,431 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021752136] [2019-11-06 22:00:11,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,679 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:11,793 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021752136] [2019-11-06 22:00:11,793 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:11,794 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:00:11,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427293818] [2019-11-06 22:00:11,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:11,795 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:11,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:11,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:00:11,795 INFO L87 Difference]: Start difference. First operand 441 states and 520 transitions. Second operand 8 states. [2019-11-06 22:00:12,705 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:12,957 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:13,271 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:14,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:14,169 INFO L93 Difference]: Finished difference Result 813 states and 1003 transitions. [2019-11-06 22:00:14,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:00:14,171 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-11-06 22:00:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:14,175 INFO L225 Difference]: With dead ends: 813 [2019-11-06 22:00:14,175 INFO L226 Difference]: Without dead ends: 501 [2019-11-06 22:00:14,177 INFO L630 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 [2019-11-06 22:00:14,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-11-06 22:00:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 441. [2019-11-06 22:00:14,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-11-06 22:00:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 519 transitions. [2019-11-06 22:00:14,257 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 519 transitions. Word has length 84 [2019-11-06 22:00:14,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:14,258 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 519 transitions. [2019-11-06 22:00:14,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:14,258 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 519 transitions. [2019-11-06 22:00:14,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-06 22:00:14,260 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:14,260 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:14,260 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:14,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:14,261 INFO L82 PathProgramCache]: Analyzing trace with hash 710261464, now seen corresponding path program 1 times [2019-11-06 22:00:14,261 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:14,261 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555005940] [2019-11-06 22:00:14,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,541 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:14,702 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555005940] [2019-11-06 22:00:14,702 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:14,702 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:00:14,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131773356] [2019-11-06 22:00:14,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:00:14,709 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:14,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:00:14,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:00:14,710 INFO L87 Difference]: Start difference. First operand 441 states and 519 transitions. Second operand 12 states. [2019-11-06 22:00:15,295 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:15,562 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:15,813 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:16,593 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:16,864 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:00:17,178 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:17,440 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:18,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:18,514 INFO L93 Difference]: Finished difference Result 880 states and 1086 transitions. [2019-11-06 22:00:18,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-06 22:00:18,519 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2019-11-06 22:00:18,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:18,524 INFO L225 Difference]: With dead ends: 880 [2019-11-06 22:00:18,524 INFO L226 Difference]: Without dead ends: 463 [2019-11-06 22:00:18,526 INFO L630 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 [2019-11-06 22:00:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-11-06 22:00:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 414. [2019-11-06 22:00:18,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-11-06 22:00:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 485 transitions. [2019-11-06 22:00:18,604 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 485 transitions. Word has length 84 [2019-11-06 22:00:18,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:18,604 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 485 transitions. [2019-11-06 22:00:18,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:00:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 485 transitions. [2019-11-06 22:00:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-11-06 22:00:18,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:18,606 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:18,607 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:18,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:18,607 INFO L82 PathProgramCache]: Analyzing trace with hash 851492262, now seen corresponding path program 1 times [2019-11-06 22:00:18,607 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:18,607 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849145229] [2019-11-06 22:00:18,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:18,971 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:19,111 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849145229] [2019-11-06 22:00:19,112 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:19,112 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-06 22:00:19,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799255458] [2019-11-06 22:00:19,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-06 22:00:19,113 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 22:00:19,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-11-06 22:00:19,114 INFO L87 Difference]: Start difference. First operand 414 states and 485 transitions. Second operand 13 states. [2019-11-06 22:00:19,729 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:19,999 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:20,260 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:21,349 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:22,147 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:22,519 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:22,836 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:23,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:23,414 INFO L93 Difference]: Finished difference Result 820 states and 974 transitions. [2019-11-06 22:00:23,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:00:23,414 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2019-11-06 22:00:23,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:23,415 INFO L225 Difference]: With dead ends: 820 [2019-11-06 22:00:23,415 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:00:23,419 INFO L630 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 [2019-11-06 22:00:23,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:00:23,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:00:23,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:00:23,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:00:23,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2019-11-06 22:00:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:23,421 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:00:23,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-06 22:00:23,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:00:23,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:00:23,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:00:24,573 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-11-06 22:00:25,631 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-11-06 22:00:26,189 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-11-06 22:00:26,475 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 228 [2019-11-06 22:00:26,605 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 219 [2019-11-06 22:00:27,095 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 16 [2019-11-06 22:00:27,252 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2019-11-06 22:00:27,410 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2019-11-06 22:00:27,571 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2019-11-06 22:00:27,733 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 1 [2019-11-06 22:00:28,136 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 24 [2019-11-06 22:00:28,299 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2019-11-06 22:00:28,905 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 21 [2019-11-06 22:00:29,232 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 15 [2019-11-06 22:00:29,436 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 16 [2019-11-06 22:00:29,770 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 19 [2019-11-06 22:00:30,216 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 15 [2019-11-06 22:00:30,369 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2019-11-06 22:00:30,585 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:30,743 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22