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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:59:00,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:59:00,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:59:00,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:59:00,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:59:00,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:59:00,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:59:00,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:59:00,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:59:00,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:59:00,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:59:00,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:59:00,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:59:00,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:59:00,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:59:00,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:59:00,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:59:00,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:59:00,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:59:00,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:59:00,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:59:00,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:59:00,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:59:00,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:59:00,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:59:00,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:59:00,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:59:00,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:59:00,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:59:00,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:59:00,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:59:00,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:59:00,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:59:00,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:59:00,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:59:00,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:59:00,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:59:00,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:59:00,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:59:00,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:59:00,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:59:00,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:59:00,706 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:59:00,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:59:00,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:59:00,709 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:59:00,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:59:00,710 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:59:00,710 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:59:00,710 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:59:00,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:59:00,711 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:59:00,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:59:00,711 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:59:00,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:59:00,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:59:00,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:59:00,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:59:00,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:59:00,713 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:59:00,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:59:00,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:59:00,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:59:00,713 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:59:00,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:59:00,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:59:00,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:59:00,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:59:00,714 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:59:00,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:59:00,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:59:00,716 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:59:00,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:59:00,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:59:00,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:59:00,788 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:59:00,789 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:59:00,790 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2019-10-03 02:59:00,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff93afb5d/b76cfeffc0884778add152811007ccae/FLAG50bdebe52 [2019-10-03 02:59:01,370 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:59:01,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2019-10-03 02:59:01,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff93afb5d/b76cfeffc0884778add152811007ccae/FLAG50bdebe52 [2019-10-03 02:59:01,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff93afb5d/b76cfeffc0884778add152811007ccae [2019-10-03 02:59:01,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:59:01,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:59:01,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:01,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:59:01,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:59:01,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:01" (1/1) ... [2019-10-03 02:59:01,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403b277c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:01, skipping insertion in model container [2019-10-03 02:59:01,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:01" (1/1) ... [2019-10-03 02:59:01,751 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:59:01,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:59:02,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:02,358 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:59:02,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:02,482 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:59:02,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02 WrapperNode [2019-10-03 02:59:02,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:02,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:59:02,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:59:02,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:59:02,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:59:02,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:59:02,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:59:02,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:59:02,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (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 [2019-10-03 02:59:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:59:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:59:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:59:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:59:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:59:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:59:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:59:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:59:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:59:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:59:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:59:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:59:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:59:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:59:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:59:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:59:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:59:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:59:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:59:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:59:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:59:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:59:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:59:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:59:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:59:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:59:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:59:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:59:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:59:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:59:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:59:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:59:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:59:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:59:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:59:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:59:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:59:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:59:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:59:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:59:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:59:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:59:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:59:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:59:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:59:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:59:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:59:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:59:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:59:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:59:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:59:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:59:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:59:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:59:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:59:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:59:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:59:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:59:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:59:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:59:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:59:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:59:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:59:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:59:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:59:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:59:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:59:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:59:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:59:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:59:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:59:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:59:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:59:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:59:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:59:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:59:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:59:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:59:03,753 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:59:03,753 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:59:03,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:03 BoogieIcfgContainer [2019-10-03 02:59:03,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:59:03,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:59:03,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:59:03,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:59:03,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:59:01" (1/3) ... [2019-10-03 02:59:03,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eb287a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:03, skipping insertion in model container [2019-10-03 02:59:03,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02" (2/3) ... [2019-10-03 02:59:03,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eb287a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:03, skipping insertion in model container [2019-10-03 02:59:03,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:03" (3/3) ... [2019-10-03 02:59:03,766 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2019-10-03 02:59:03,776 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:59:03,788 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:59:03,806 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:59:03,839 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:59:03,839 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:59:03,840 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:59:03,840 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:59:03,840 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:59:03,840 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:59:03,840 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:59:03,841 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:59:03,871 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2019-10-03 02:59:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:59:03,885 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:03,886 INFO L411 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] [2019-10-03 02:59:03,888 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:03,894 INFO L82 PathProgramCache]: Analyzing trace with hash 441969018, now seen corresponding path program 1 times [2019-10-03 02:59:03,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:03,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:03,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:03,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:03,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:04,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:04,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:59:04,248 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:04,254 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:04,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:04,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:04,273 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 2 states. [2019-10-03 02:59:04,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:04,324 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2019-10-03 02:59:04,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:04,326 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:59:04,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:04,354 INFO L225 Difference]: With dead ends: 141 [2019-10-03 02:59:04,354 INFO L226 Difference]: Without dead ends: 130 [2019-10-03 02:59:04,360 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:04,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-03 02:59:04,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-10-03 02:59:04,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-03 02:59:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2019-10-03 02:59:04,448 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 59 [2019-10-03 02:59:04,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:04,450 INFO L475 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2019-10-03 02:59:04,450 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:04,450 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2019-10-03 02:59:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:59:04,456 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:04,456 INFO L411 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] [2019-10-03 02:59:04,457 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:04,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:04,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1441424744, now seen corresponding path program 1 times [2019-10-03 02:59:04,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:04,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:04,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:04,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:04,461 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:04,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:04,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:59:04,657 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:04,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:59:04,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:59:04,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:04,660 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 3 states. [2019-10-03 02:59:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:04,674 INFO L93 Difference]: Finished difference Result 121 states and 139 transitions. [2019-10-03 02:59:04,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:59:04,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:59:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:04,677 INFO L225 Difference]: With dead ends: 121 [2019-10-03 02:59:04,677 INFO L226 Difference]: Without dead ends: 121 [2019-10-03 02:59:04,678 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-03 02:59:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-03 02:59:04,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-03 02:59:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2019-10-03 02:59:04,688 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 60 [2019-10-03 02:59:04,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:04,689 INFO L475 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2019-10-03 02:59:04,689 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:59:04,689 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2019-10-03 02:59:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:59:04,691 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:04,691 INFO L411 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] [2019-10-03 02:59:04,692 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1933724587, now seen corresponding path program 1 times [2019-10-03 02:59:04,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:04,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:04,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:04,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:04,695 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:04,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:04,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:04,892 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:04,893 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:04,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:04,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:04,894 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand 7 states. [2019-10-03 02:59:05,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:05,232 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2019-10-03 02:59:05,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:05,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-10-03 02:59:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:05,235 INFO L225 Difference]: With dead ends: 121 [2019-10-03 02:59:05,235 INFO L226 Difference]: Without dead ends: 121 [2019-10-03 02:59:05,236 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:59:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-03 02:59:05,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-03 02:59:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-03 02:59:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-10-03 02:59:05,248 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 64 [2019-10-03 02:59:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:05,251 INFO L475 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-10-03 02:59:05,252 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-10-03 02:59:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-03 02:59:05,260 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:05,260 INFO L411 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] [2019-10-03 02:59:05,261 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:05,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1782817326, now seen corresponding path program 1 times [2019-10-03 02:59:05,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:05,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:05,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:05,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:05,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:05,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:05,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:59:05,490 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:05,491 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:59:05,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:59:05,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:59:05,492 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 5 states. [2019-10-03 02:59:05,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:05,987 INFO L93 Difference]: Finished difference Result 213 states and 249 transitions. [2019-10-03 02:59:05,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:05,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-03 02:59:05,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:05,993 INFO L225 Difference]: With dead ends: 213 [2019-10-03 02:59:05,993 INFO L226 Difference]: Without dead ends: 213 [2019-10-03 02:59:05,994 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:05,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-10-03 02:59:06,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 195. [2019-10-03 02:59:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-10-03 02:59:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 225 transitions. [2019-10-03 02:59:06,023 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 225 transitions. Word has length 72 [2019-10-03 02:59:06,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:06,024 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 225 transitions. [2019-10-03 02:59:06,024 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:59:06,024 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 225 transitions. [2019-10-03 02:59:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-03 02:59:06,029 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:06,029 INFO L411 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] [2019-10-03 02:59:06,030 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:06,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:06,030 INFO L82 PathProgramCache]: Analyzing trace with hash 526954491, now seen corresponding path program 1 times [2019-10-03 02:59:06,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:06,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:06,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,033 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:59:06,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:06,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:06,165 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:06,166 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:06,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:06,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:06,167 INFO L87 Difference]: Start difference. First operand 195 states and 225 transitions. Second operand 7 states. [2019-10-03 02:59:06,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:06,826 INFO L93 Difference]: Finished difference Result 212 states and 248 transitions. [2019-10-03 02:59:06,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:59:06,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2019-10-03 02:59:06,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:06,830 INFO L225 Difference]: With dead ends: 212 [2019-10-03 02:59:06,830 INFO L226 Difference]: Without dead ends: 212 [2019-10-03 02:59:06,830 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:59:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-10-03 02:59:06,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 194. [2019-10-03 02:59:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-10-03 02:59:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 222 transitions. [2019-10-03 02:59:06,844 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 222 transitions. Word has length 86 [2019-10-03 02:59:06,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:06,844 INFO L475 AbstractCegarLoop]: Abstraction has 194 states and 222 transitions. [2019-10-03 02:59:06,844 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:06,845 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 222 transitions. [2019-10-03 02:59:06,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-03 02:59:06,846 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:06,846 INFO L411 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] [2019-10-03 02:59:06,847 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:06,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:06,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1805003882, now seen corresponding path program 1 times [2019-10-03 02:59:06,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:06,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:06,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,850 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:06,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:06,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:59:06,936 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:06,937 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:59:06,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:59:06,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:59:06,938 INFO L87 Difference]: Start difference. First operand 194 states and 222 transitions. Second operand 6 states. [2019-10-03 02:59:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:06,965 INFO L93 Difference]: Finished difference Result 201 states and 229 transitions. [2019-10-03 02:59:06,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:06,966 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-10-03 02:59:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:06,969 INFO L225 Difference]: With dead ends: 201 [2019-10-03 02:59:06,970 INFO L226 Difference]: Without dead ends: 201 [2019-10-03 02:59:06,970 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:06,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2019-10-03 02:59:06,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 199. [2019-10-03 02:59:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-10-03 02:59:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 227 transitions. [2019-10-03 02:59:06,989 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 227 transitions. Word has length 102 [2019-10-03 02:59:06,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:06,989 INFO L475 AbstractCegarLoop]: Abstraction has 199 states and 227 transitions. [2019-10-03 02:59:06,989 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:59:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 227 transitions. [2019-10-03 02:59:06,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-03 02:59:06,991 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:06,991 INFO L411 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] [2019-10-03 02:59:06,992 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:06,994 INFO L82 PathProgramCache]: Analyzing trace with hash -244383960, now seen corresponding path program 1 times [2019-10-03 02:59:06,994 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,002 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:07,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:59:07,119 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,121 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:59:07,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:59:07,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:07,122 INFO L87 Difference]: Start difference. First operand 199 states and 227 transitions. Second operand 8 states. [2019-10-03 02:59:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:07,157 INFO L93 Difference]: Finished difference Result 206 states and 234 transitions. [2019-10-03 02:59:07,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:59:07,159 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-10-03 02:59:07,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:07,161 INFO L225 Difference]: With dead ends: 206 [2019-10-03 02:59:07,161 INFO L226 Difference]: Without dead ends: 206 [2019-10-03 02:59:07,162 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:07,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-10-03 02:59:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2019-10-03 02:59:07,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-03 02:59:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 231 transitions. [2019-10-03 02:59:07,185 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 231 transitions. Word has length 102 [2019-10-03 02:59:07,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:07,186 INFO L475 AbstractCegarLoop]: Abstraction has 203 states and 231 transitions. [2019-10-03 02:59:07,186 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:59:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 231 transitions. [2019-10-03 02:59:07,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-03 02:59:07,190 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:07,190 INFO L411 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] [2019-10-03 02:59:07,190 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:07,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:07,191 INFO L82 PathProgramCache]: Analyzing trace with hash 725197063, now seen corresponding path program 1 times [2019-10-03 02:59:07,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,194 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:07,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:59:07,279 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,281 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:59:07,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:59:07,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:07,285 INFO L87 Difference]: Start difference. First operand 203 states and 231 transitions. Second operand 4 states. [2019-10-03 02:59:07,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:07,527 INFO L93 Difference]: Finished difference Result 393 states and 466 transitions. [2019-10-03 02:59:07,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:59:07,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-10-03 02:59:07,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:07,532 INFO L225 Difference]: With dead ends: 393 [2019-10-03 02:59:07,532 INFO L226 Difference]: Without dead ends: 393 [2019-10-03 02:59:07,532 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-10-03 02:59:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 384. [2019-10-03 02:59:07,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-10-03 02:59:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 449 transitions. [2019-10-03 02:59:07,554 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 449 transitions. Word has length 102 [2019-10-03 02:59:07,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:07,554 INFO L475 AbstractCegarLoop]: Abstraction has 384 states and 449 transitions. [2019-10-03 02:59:07,555 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:59:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 449 transitions. [2019-10-03 02:59:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-03 02:59:07,556 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:07,557 INFO L411 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] [2019-10-03 02:59:07,557 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:07,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1122638495, now seen corresponding path program 1 times [2019-10-03 02:59:07,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,560 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:07,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:59:07,714 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,715 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:59:07,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:59:07,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:59:07,716 INFO L87 Difference]: Start difference. First operand 384 states and 449 transitions. Second operand 9 states. [2019-10-03 02:59:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:08,780 INFO L93 Difference]: Finished difference Result 720 states and 840 transitions. [2019-10-03 02:59:08,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:59:08,781 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-10-03 02:59:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:08,786 INFO L225 Difference]: With dead ends: 720 [2019-10-03 02:59:08,787 INFO L226 Difference]: Without dead ends: 720 [2019-10-03 02:59:08,788 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:59:08,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2019-10-03 02:59:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 650. [2019-10-03 02:59:08,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2019-10-03 02:59:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 751 transitions. [2019-10-03 02:59:08,823 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 751 transitions. Word has length 106 [2019-10-03 02:59:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:08,824 INFO L475 AbstractCegarLoop]: Abstraction has 650 states and 751 transitions. [2019-10-03 02:59:08,824 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:59:08,824 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 751 transitions. [2019-10-03 02:59:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-03 02:59:08,827 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:08,827 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:08,828 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:08,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:08,828 INFO L82 PathProgramCache]: Analyzing trace with hash 193650261, now seen corresponding path program 1 times [2019-10-03 02:59:08,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:08,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:08,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,831 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:08,992 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-03 02:59:08,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:59:08,992 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:59:08,993 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2019-10-03 02:59:08,995 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [113], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [161], [185], [187], [192], [195], [196], [197], [198], [200], [205], [207], [208], [209], [210], [214], [217], [221], [227], [256], [260], [263], [267], [268], [271], [272], [273], [275], [276], [277], [279], [282], [284], [287], [290], [299], [301], [302], [303], [327], [329], [330], [348], [349], [399], [400], [410], [418], [419], [420], [421], [422], [423], [424], [425], [426], [458], [459], [460], [461], [464], [465], [466], [467], [470], [471], [474], [475], [476], [477], [478], [479], [480], [481], [482], [483], [484], [485], [486], [487], [492], [493], [494], [495], [496], [497], [498], [502], [503], [504], [506], [507], [512], [513], [514] [2019-10-03 02:59:09,040 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:59:09,040 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:59:09,121 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:59:09,122 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:59:09,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:09,127 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:59:09,178 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:59:09,178 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:59:09,182 INFO L420 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2019-10-03 02:59:09,182 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:59:09,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:59:09,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:59:09,184 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:09,184 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:09,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:09,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:09,185 INFO L87 Difference]: Start difference. First operand 650 states and 751 transitions. Second operand 2 states. [2019-10-03 02:59:09,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:09,185 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:59:09,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:09,185 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 149 [2019-10-03 02:59:09,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:09,186 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:59:09,186 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:09,186 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:09,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:09,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:09,187 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2019-10-03 02:59:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:09,187 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:09,188 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:09,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:09,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:09 BoogieIcfgContainer [2019-10-03 02:59:09,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:09,195 INFO L168 Benchmark]: Toolchain (without parser) took 7461.28 ms. Allocated memory was 140.5 MB in the beginning and 317.2 MB in the end (delta: 176.7 MB). Free memory was 86.8 MB in the beginning and 220.0 MB in the end (delta: -133.3 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:09,196 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:09,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.70 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 86.6 MB in the beginning and 165.6 MB in the end (delta: -79.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:09,198 INFO L168 Benchmark]: Boogie Preprocessor took 96.34 ms. Allocated memory is still 200.3 MB. Free memory was 165.6 MB in the beginning and 161.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:09,199 INFO L168 Benchmark]: RCFGBuilder took 1169.14 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 161.4 MB in the beginning and 194.2 MB in the end (delta: -32.8 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:09,200 INFO L168 Benchmark]: TraceAbstraction took 5436.50 ms. Allocated memory was 226.5 MB in the beginning and 317.2 MB in the end (delta: 90.7 MB). Free memory was 194.2 MB in the beginning and 220.0 MB in the end (delta: -25.8 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:09,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.70 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 86.6 MB in the beginning and 165.6 MB in the end (delta: -79.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.34 ms. Allocated memory is still 200.3 MB. Free memory was 165.6 MB in the beginning and 161.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1169.14 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 161.4 MB in the beginning and 194.2 MB in the end (delta: -32.8 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5436.50 ms. Allocated memory was 226.5 MB in the beginning and 317.2 MB in the end (delta: 90.7 MB). Free memory was 194.2 MB in the beginning and 220.0 MB in the end (delta: -25.8 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 940]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 232 locations, 1 error locations. SAFE Result, 5.3s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1389 SDtfs, 1024 SDslu, 2717 SDs, 0 SdLazy, 1575 SolverSat, 386 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=650occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8581081081081081 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 120 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 902 NumberOfCodeBlocks, 902 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 892 ConstructedInterpolants, 0 QuantifiedInterpolants, 141400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 60/65 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...