java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:42:43,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:42:43,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:42:43,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:42:43,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:42:43,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:42:43,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:42:43,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:42:43,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:42:43,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:42:43,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:42:43,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:42:43,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:42:43,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:42:43,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:42:43,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:42:43,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:42:43,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:42:43,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:42:43,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:42:43,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:42:43,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:42:43,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:42:43,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:42:43,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:42:43,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:42:43,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:42:43,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:42:43,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:42:43,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:42:43,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:42:43,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:42:43,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:42:43,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:42:43,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:42:43,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:42:43,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:42:43,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:42:43,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:42:43,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:42:43,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:42:43,568 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 19:42:43,594 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:42:43,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:42:43,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:42:43,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:42:43,596 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:42:43,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:42:43,597 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:42:43,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:42:43,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:42:43,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:42:43,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:42:43,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:42:43,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:42:43,598 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:42:43,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:42:43,598 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:42:43,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:42:43,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:42:43,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:42:43,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:42:43,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:42:43,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:43,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:42:43,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:42:43,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:42:43,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:42:43,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:42:43,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:42:43,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:42:43,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:42:43,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:42:43,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:42:43,932 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:42:43,932 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:42:43,933 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-10-13 19:42:44,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1045edad/3b6195032ec4492a94372563fa36dfb3/FLAGc5043de15 [2019-10-13 19:42:44,546 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:42:44,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-10-13 19:42:44,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1045edad/3b6195032ec4492a94372563fa36dfb3/FLAGc5043de15 [2019-10-13 19:42:44,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1045edad/3b6195032ec4492a94372563fa36dfb3 [2019-10-13 19:42:44,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:42:44,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:42:44,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:44,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:42:44,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:42:44,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:44" (1/1) ... [2019-10-13 19:42:44,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25eea2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:44, skipping insertion in model container [2019-10-13 19:42:44,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:44" (1/1) ... [2019-10-13 19:42:44,949 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:42:45,008 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:42:45,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:45,474 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:42:45,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:45,652 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:42:45,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45 WrapperNode [2019-10-13 19:42:45,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:45,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:42:45,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:42:45,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:42:45,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (1/1) ... [2019-10-13 19:42:45,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (1/1) ... [2019-10-13 19:42:45,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (1/1) ... [2019-10-13 19:42:45,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (1/1) ... [2019-10-13 19:42:45,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (1/1) ... [2019-10-13 19:42:45,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (1/1) ... [2019-10-13 19:42:45,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (1/1) ... [2019-10-13 19:42:45,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:42:45,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:42:45,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:42:45,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:42:45,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (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 19:42:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:42:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:42:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:42:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:42:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:42:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:42:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:42:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:42:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:42:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:42:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:42:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:42:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:42:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:42:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:42:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:42:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:42:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:42:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:42:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:42:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:42:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:42:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:42:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:42:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:42:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:42:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:42:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:42:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:42:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:42:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:42:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:42:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:42:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:42:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:42:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:42:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:42:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:42:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:42:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:42:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:42:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:42:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:42:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:42:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:42:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:42:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:42:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:42:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:42:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:42:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:42:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:42:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:42:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:42:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:42:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:42:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:42:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:42:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:42:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:42:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:42:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:42:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:42:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:42:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:42:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:42:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:42:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:42:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:42:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:42:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:42:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:42:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:42:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:42:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:42:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:42:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:42:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:42:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:42:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:42:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:42:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:42:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:42:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:42:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:42:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:42:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:42:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:42:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:42:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:42:47,108 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:42:47,109 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:42:47,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:47 BoogieIcfgContainer [2019-10-13 19:42:47,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:42:47,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:42:47,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:42:47,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:42:47,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:42:44" (1/3) ... [2019-10-13 19:42:47,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b83fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:47, skipping insertion in model container [2019-10-13 19:42:47,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:45" (2/3) ... [2019-10-13 19:42:47,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b83fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:47, skipping insertion in model container [2019-10-13 19:42:47,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:47" (3/3) ... [2019-10-13 19:42:47,121 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2019-10-13 19:42:47,131 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:42:47,142 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:42:47,154 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:42:47,190 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:42:47,190 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:42:47,190 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:42:47,190 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:42:47,192 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:42:47,193 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:42:47,193 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:42:47,193 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:42:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2019-10-13 19:42:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 19:42:47,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:47,245 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:47,248 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:47,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:47,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1456889578, now seen corresponding path program 1 times [2019-10-13 19:42:47,263 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:47,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461999513] [2019-10-13 19:42:47,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:47,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:47,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:47,990 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:48,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461999513] [2019-10-13 19:42:48,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:48,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:42:48,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462342431] [2019-10-13 19:42:48,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:42:48,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:48,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:42:48,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:48,176 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 4 states. [2019-10-13 19:42:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:49,557 INFO L93 Difference]: Finished difference Result 367 states and 468 transitions. [2019-10-13 19:42:49,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:42:49,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 19:42:49,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:49,576 INFO L225 Difference]: With dead ends: 367 [2019-10-13 19:42:49,576 INFO L226 Difference]: Without dead ends: 201 [2019-10-13 19:42:49,581 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2019-10-13 19:42:49,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 167. [2019-10-13 19:42:49,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-13 19:42:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 197 transitions. [2019-10-13 19:42:49,680 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 197 transitions. Word has length 59 [2019-10-13 19:42:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:49,681 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 197 transitions. [2019-10-13 19:42:49,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:42:49,681 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 197 transitions. [2019-10-13 19:42:49,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 19:42:49,686 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:49,686 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:49,686 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:49,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:49,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1129690590, now seen corresponding path program 1 times [2019-10-13 19:42:49,687 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:49,687 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796477719] [2019-10-13 19:42:49,687 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:49,688 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:49,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,088 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:50,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796477719] [2019-10-13 19:42:50,142 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:50,142 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:42:50,142 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587595686] [2019-10-13 19:42:50,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:42:50,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:50,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:42:50,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:42:50,145 INFO L87 Difference]: Start difference. First operand 167 states and 197 transitions. Second operand 5 states. [2019-10-13 19:42:50,713 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:51,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:51,943 INFO L93 Difference]: Finished difference Result 308 states and 376 transitions. [2019-10-13 19:42:51,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:42:51,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 19:42:51,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:51,948 INFO L225 Difference]: With dead ends: 308 [2019-10-13 19:42:51,948 INFO L226 Difference]: Without dead ends: 191 [2019-10-13 19:42:51,950 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:42:51,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-10-13 19:42:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2019-10-13 19:42:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-13 19:42:51,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2019-10-13 19:42:51,988 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 60 [2019-10-13 19:42:51,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:51,988 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2019-10-13 19:42:51,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:42:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2019-10-13 19:42:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:42:51,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:51,992 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:51,992 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:51,992 INFO L82 PathProgramCache]: Analyzing trace with hash -651026134, now seen corresponding path program 1 times [2019-10-13 19:42:51,992 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:51,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142557897] [2019-10-13 19:42:51,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:51,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:51,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,339 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:52,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142557897] [2019-10-13 19:42:52,507 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:52,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:52,508 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830328759] [2019-10-13 19:42:52,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:52,509 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:52,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:52,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:52,510 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand 9 states. [2019-10-13 19:42:52,950 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:53,299 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:42:53,586 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:53,844 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:55,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:55,418 INFO L93 Difference]: Finished difference Result 321 states and 395 transitions. [2019-10-13 19:42:55,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:42:55,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-13 19:42:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:55,428 INFO L225 Difference]: With dead ends: 321 [2019-10-13 19:42:55,428 INFO L226 Difference]: Without dead ends: 191 [2019-10-13 19:42:55,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:42:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-10-13 19:42:55,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2019-10-13 19:42:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-13 19:42:55,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2019-10-13 19:42:55,471 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 65 [2019-10-13 19:42:55,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:55,471 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2019-10-13 19:42:55,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:55,472 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2019-10-13 19:42:55,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 19:42:55,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:55,475 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:55,476 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:55,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1717523051, now seen corresponding path program 1 times [2019-10-13 19:42:55,476 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:55,477 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633469102] [2019-10-13 19:42:55,477 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:55,477 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:55,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,775 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:55,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:55,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633469102] [2019-10-13 19:42:55,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:55,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:42:55,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614013887] [2019-10-13 19:42:55,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:42:55,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:55,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:42:55,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:42:55,880 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand 7 states. [2019-10-13 19:42:56,324 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:58,015 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:58,710 INFO L93 Difference]: Finished difference Result 439 states and 543 transitions. [2019-10-13 19:42:58,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:42:58,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-10-13 19:42:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:58,715 INFO L225 Difference]: With dead ends: 439 [2019-10-13 19:42:58,716 INFO L226 Difference]: Without dead ends: 309 [2019-10-13 19:42:58,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:42:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-10-13 19:42:58,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 263. [2019-10-13 19:42:58,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-10-13 19:42:58,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 298 transitions. [2019-10-13 19:42:58,772 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 298 transitions. Word has length 83 [2019-10-13 19:42:58,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:58,773 INFO L462 AbstractCegarLoop]: Abstraction has 263 states and 298 transitions. [2019-10-13 19:42:58,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:42:58,773 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 298 transitions. [2019-10-13 19:42:58,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:42:58,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:58,776 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:58,776 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:58,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:58,776 INFO L82 PathProgramCache]: Analyzing trace with hash 119397721, now seen corresponding path program 1 times [2019-10-13 19:42:58,777 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:58,777 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392000401] [2019-10-13 19:42:58,777 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:58,777 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:58,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,131 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:42:59,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392000401] [2019-10-13 19:42:59,302 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:59,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:59,302 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974416084] [2019-10-13 19:42:59,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:59,303 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:59,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:59,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:59,304 INFO L87 Difference]: Start difference. First operand 263 states and 298 transitions. Second operand 9 states. [2019-10-13 19:42:59,865 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:00,646 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:01,624 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:01,917 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:02,371 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:02,632 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:03,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:03,312 INFO L93 Difference]: Finished difference Result 543 states and 648 transitions. [2019-10-13 19:43:03,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:43:03,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2019-10-13 19:43:03,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:03,316 INFO L225 Difference]: With dead ends: 543 [2019-10-13 19:43:03,316 INFO L226 Difference]: Without dead ends: 308 [2019-10-13 19:43:03,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:43:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-10-13 19:43:03,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 262. [2019-10-13 19:43:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-10-13 19:43:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 295 transitions. [2019-10-13 19:43:03,367 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 295 transitions. Word has length 97 [2019-10-13 19:43:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:03,369 INFO L462 AbstractCegarLoop]: Abstraction has 262 states and 295 transitions. [2019-10-13 19:43:03,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:43:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 295 transitions. [2019-10-13 19:43:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:43:03,372 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:03,372 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:03,372 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:03,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:03,373 INFO L82 PathProgramCache]: Analyzing trace with hash 299468705, now seen corresponding path program 1 times [2019-10-13 19:43:03,373 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:03,373 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827626512] [2019-10-13 19:43:03,373 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:03,373 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:03,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,636 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:03,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827626512] [2019-10-13 19:43:03,784 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:03,784 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:43:03,784 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338970462] [2019-10-13 19:43:03,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:43:03,785 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:03,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:43:03,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:43:03,786 INFO L87 Difference]: Start difference. First operand 262 states and 295 transitions. Second operand 9 states. [2019-10-13 19:43:04,949 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:05,206 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:43:05,473 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:05,728 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:06,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:06,696 INFO L93 Difference]: Finished difference Result 543 states and 653 transitions. [2019-10-13 19:43:06,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:43:06,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2019-10-13 19:43:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:06,700 INFO L225 Difference]: With dead ends: 543 [2019-10-13 19:43:06,700 INFO L226 Difference]: Without dead ends: 309 [2019-10-13 19:43:06,701 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:43:06,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-10-13 19:43:06,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 267. [2019-10-13 19:43:06,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-10-13 19:43:06,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 300 transitions. [2019-10-13 19:43:06,750 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 300 transitions. Word has length 113 [2019-10-13 19:43:06,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:06,751 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 300 transitions. [2019-10-13 19:43:06,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:43:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 300 transitions. [2019-10-13 19:43:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:43:06,753 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:06,753 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:06,753 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:06,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:06,754 INFO L82 PathProgramCache]: Analyzing trace with hash -2056336545, now seen corresponding path program 1 times [2019-10-13 19:43:06,754 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:06,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652458396] [2019-10-13 19:43:06,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:06,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:06,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,030 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:07,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652458396] [2019-10-13 19:43:07,210 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:07,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:43:07,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860636241] [2019-10-13 19:43:07,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:43:07,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:07,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:43:07,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:43:07,213 INFO L87 Difference]: Start difference. First operand 267 states and 300 transitions. Second operand 11 states. [2019-10-13 19:43:07,895 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:08,199 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:08,473 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:09,343 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:09,620 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:09,874 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:11,139 INFO L93 Difference]: Finished difference Result 553 states and 664 transitions. [2019-10-13 19:43:11,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:43:11,142 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2019-10-13 19:43:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:11,145 INFO L225 Difference]: With dead ends: 553 [2019-10-13 19:43:11,145 INFO L226 Difference]: Without dead ends: 314 [2019-10-13 19:43:11,146 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:43:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-10-13 19:43:11,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 271. [2019-10-13 19:43:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2019-10-13 19:43:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 304 transitions. [2019-10-13 19:43:11,198 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 304 transitions. Word has length 113 [2019-10-13 19:43:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:11,198 INFO L462 AbstractCegarLoop]: Abstraction has 271 states and 304 transitions. [2019-10-13 19:43:11,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:43:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 304 transitions. [2019-10-13 19:43:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:43:11,200 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:11,200 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:11,201 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1287166530, now seen corresponding path program 1 times [2019-10-13 19:43:11,201 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:11,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556763353] [2019-10-13 19:43:11,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:11,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:11,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,506 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:11,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:11,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556763353] [2019-10-13 19:43:11,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:11,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:43:11,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639455243] [2019-10-13 19:43:11,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:43:11,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:11,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:43:11,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:43:11,669 INFO L87 Difference]: Start difference. First operand 271 states and 304 transitions. Second operand 7 states. [2019-10-13 19:43:12,010 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:12,615 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:14,794 INFO L93 Difference]: Finished difference Result 745 states and 915 transitions. [2019-10-13 19:43:14,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:43:14,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-13 19:43:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:14,799 INFO L225 Difference]: With dead ends: 745 [2019-10-13 19:43:14,799 INFO L226 Difference]: Without dead ends: 502 [2019-10-13 19:43:14,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:43:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2019-10-13 19:43:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 460. [2019-10-13 19:43:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2019-10-13 19:43:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 532 transitions. [2019-10-13 19:43:14,877 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 532 transitions. Word has length 113 [2019-10-13 19:43:14,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:14,878 INFO L462 AbstractCegarLoop]: Abstraction has 460 states and 532 transitions. [2019-10-13 19:43:14,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:43:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 532 transitions. [2019-10-13 19:43:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-13 19:43:14,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:14,880 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:14,881 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:14,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:14,881 INFO L82 PathProgramCache]: Analyzing trace with hash -803017404, now seen corresponding path program 1 times [2019-10-13 19:43:14,881 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:14,881 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941563744] [2019-10-13 19:43:14,882 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:14,882 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:14,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,235 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:15,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941563744] [2019-10-13 19:43:15,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:15,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:43:15,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97701372] [2019-10-13 19:43:15,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:43:15,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:15,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:43:15,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:43:15,462 INFO L87 Difference]: Start difference. First operand 460 states and 532 transitions. Second operand 12 states. [2019-10-13 19:43:16,000 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:16,808 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:18,131 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:18,481 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:18,774 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:43:19,081 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:19,412 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:21,006 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:21,321 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:22,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:22,284 INFO L93 Difference]: Finished difference Result 1281 states and 1569 transitions. [2019-10-13 19:43:22,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-13 19:43:22,284 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2019-10-13 19:43:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:22,291 INFO L225 Difference]: With dead ends: 1281 [2019-10-13 19:43:22,291 INFO L226 Difference]: Without dead ends: 928 [2019-10-13 19:43:22,293 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 19:43:22,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2019-10-13 19:43:22,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 803. [2019-10-13 19:43:22,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-13 19:43:22,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 919 transitions. [2019-10-13 19:43:22,436 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 919 transitions. Word has length 117 [2019-10-13 19:43:22,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:22,436 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 919 transitions. [2019-10-13 19:43:22,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:43:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 919 transitions. [2019-10-13 19:43:22,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 19:43:22,440 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:22,440 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:22,441 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:22,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:22,441 INFO L82 PathProgramCache]: Analyzing trace with hash -394036424, now seen corresponding path program 1 times [2019-10-13 19:43:22,441 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:22,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656494278] [2019-10-13 19:43:22,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:22,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:22,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,785 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 19:43:23,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656494278] [2019-10-13 19:43:23,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376670464] [2019-10-13 19:43:23,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:43:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:23,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 19:43:23,371 INFO L279 TraceCheckSpWp]: Computing forward predicates...