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_spec4_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:34,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:34,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:34,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:34,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:34,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:34,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:34,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:34,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:34,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:34,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:34,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:34,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:34,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:34,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:34,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:34,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:34,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:34,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:34,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:34,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:34,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:34,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:34,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:34,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:34,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:34,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:34,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:34,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:34,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:34,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:34,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:34,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:34,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:34,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:34,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:34,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:34,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:34,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:34,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:34,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:34,747 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 02:58:34,762 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:34,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:34,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:34,763 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:34,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:34,764 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:34,764 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:34,764 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:34,764 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:34,765 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:34,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:34,766 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:34,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:34,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:34,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:34,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:34,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:34,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:34,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:34,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:34,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:34,768 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:34,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:34,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:34,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:34,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:34,769 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:34,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:34,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:34,769 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:34,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:34,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:34,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:34,816 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:34,816 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:34,817 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-03 02:58:34,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed15f1455/84d23163997a41888687495c26b80603/FLAG328fc87b1 [2019-10-03 02:58:35,492 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:35,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-03 02:58:35,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed15f1455/84d23163997a41888687495c26b80603/FLAG328fc87b1 [2019-10-03 02:58:35,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed15f1455/84d23163997a41888687495c26b80603 [2019-10-03 02:58:35,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:35,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:35,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:35,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:35,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:35,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:35" (1/1) ... [2019-10-03 02:58:35,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd28435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:35, skipping insertion in model container [2019-10-03 02:58:35,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:35" (1/1) ... [2019-10-03 02:58:35,763 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:35,836 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:36,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:36,339 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:36,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:36,522 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:36,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36 WrapperNode [2019-10-03 02:58:36,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:36,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:36,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:36,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:36,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (1/1) ... [2019-10-03 02:58:36,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (1/1) ... [2019-10-03 02:58:36,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (1/1) ... [2019-10-03 02:58:36,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (1/1) ... [2019-10-03 02:58:36,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (1/1) ... [2019-10-03 02:58:36,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (1/1) ... [2019-10-03 02:58:36,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (1/1) ... [2019-10-03 02:58:36,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:36,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:36,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:36,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:36,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (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 02:58:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:36,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:36,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:38,163 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:38,164 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:38,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:38 BoogieIcfgContainer [2019-10-03 02:58:38,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:38,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:38,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:38,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:38,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:35" (1/3) ... [2019-10-03 02:58:38,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc2e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:38, skipping insertion in model container [2019-10-03 02:58:38,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:36" (2/3) ... [2019-10-03 02:58:38,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc2e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:38, skipping insertion in model container [2019-10-03 02:58:38,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:38" (3/3) ... [2019-10-03 02:58:38,178 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2019-10-03 02:58:38,189 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:38,201 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:38,221 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:38,252 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:38,252 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:38,252 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:38,253 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:38,253 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:38,254 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:38,254 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:38,254 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-10-03 02:58:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:38,305 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:38,306 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:38,309 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:38,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:38,315 INFO L82 PathProgramCache]: Analyzing trace with hash -389891839, now seen corresponding path program 1 times [2019-10-03 02:58:38,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:38,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:38,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,378 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:38,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:38,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:38,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:38,684 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:38,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:38,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:38,702 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-10-03 02:58:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:38,745 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2019-10-03 02:58:38,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:38,746 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:38,763 INFO L225 Difference]: With dead ends: 164 [2019-10-03 02:58:38,764 INFO L226 Difference]: Without dead ends: 153 [2019-10-03 02:58:38,765 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 02:58:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-03 02:58:38,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-10-03 02:58:38,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-03 02:58:38,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2019-10-03 02:58:38,819 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 46 [2019-10-03 02:58:38,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:38,820 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2019-10-03 02:58:38,820 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:38,820 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2019-10-03 02:58:38,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:38,824 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:38,824 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:38,825 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:38,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:38,825 INFO L82 PathProgramCache]: Analyzing trace with hash 999791911, now seen corresponding path program 1 times [2019-10-03 02:58:38,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:38,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:38,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,829 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:38,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:38,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:38,966 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:38,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:38,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:38,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:38,969 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2019-10-03 02:58:38,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:38,995 INFO L93 Difference]: Finished difference Result 144 states and 169 transitions. [2019-10-03 02:58:38,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:38,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:38,998 INFO L225 Difference]: With dead ends: 144 [2019-10-03 02:58:38,998 INFO L226 Difference]: Without dead ends: 144 [2019-10-03 02:58:38,999 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 02:58:39,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-03 02:58:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-03 02:58:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-03 02:58:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2019-10-03 02:58:39,014 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 47 [2019-10-03 02:58:39,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:39,015 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2019-10-03 02:58:39,015 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2019-10-03 02:58:39,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:58:39,017 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:39,018 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:39,018 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:39,018 INFO L82 PathProgramCache]: Analyzing trace with hash -314490359, now seen corresponding path program 1 times [2019-10-03 02:58:39,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:39,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:39,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:39,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:39,022 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:39,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:39,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:39,189 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:39,189 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:39,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:39,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:39,190 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2019-10-03 02:58:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:39,646 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2019-10-03 02:58:39,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:39,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-03 02:58:39,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:39,650 INFO L225 Difference]: With dead ends: 144 [2019-10-03 02:58:39,654 INFO L226 Difference]: Without dead ends: 144 [2019-10-03 02:58:39,655 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 02:58:39,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-03 02:58:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-03 02:58:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-03 02:58:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-03 02:58:39,682 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 51 [2019-10-03 02:58:39,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:39,682 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-03 02:58:39,682 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-03 02:58:39,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-03 02:58:39,692 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:39,692 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:39,693 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:39,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:39,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1957039538, now seen corresponding path program 1 times [2019-10-03 02:58:39,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:39,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:39,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:39,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:39,701 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:39,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:39,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:39,890 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:39,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:39,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:39,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:39,892 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2019-10-03 02:58:40,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:40,492 INFO L93 Difference]: Finished difference Result 256 states and 292 transitions. [2019-10-03 02:58:40,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:40,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-03 02:58:40,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:40,496 INFO L225 Difference]: With dead ends: 256 [2019-10-03 02:58:40,496 INFO L226 Difference]: Without dead ends: 256 [2019-10-03 02:58:40,496 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:58:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-10-03 02:58:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2019-10-03 02:58:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-10-03 02:58:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 268 transitions. [2019-10-03 02:58:40,526 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 268 transitions. Word has length 69 [2019-10-03 02:58:40,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:40,527 INFO L475 AbstractCegarLoop]: Abstraction has 238 states and 268 transitions. [2019-10-03 02:58:40,527 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 268 transitions. [2019-10-03 02:58:40,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-03 02:58:40,532 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:40,532 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:40,532 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:40,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:40,533 INFO L82 PathProgramCache]: Analyzing trace with hash 868877799, now seen corresponding path program 1 times [2019-10-03 02:58:40,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:40,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:40,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:40,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:40,538 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:40,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:40,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:40,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:40,716 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:40,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:40,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:40,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:40,717 INFO L87 Difference]: Start difference. First operand 238 states and 268 transitions. Second operand 10 states. [2019-10-03 02:58:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:41,384 INFO L93 Difference]: Finished difference Result 557 states and 653 transitions. [2019-10-03 02:58:41,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:41,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-10-03 02:58:41,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:41,390 INFO L225 Difference]: With dead ends: 557 [2019-10-03 02:58:41,390 INFO L226 Difference]: Without dead ends: 557 [2019-10-03 02:58:41,391 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-03 02:58:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2019-10-03 02:58:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-10-03 02:58:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 636 transitions. [2019-10-03 02:58:41,425 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 636 transitions. Word has length 83 [2019-10-03 02:58:41,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:41,426 INFO L475 AbstractCegarLoop]: Abstraction has 547 states and 636 transitions. [2019-10-03 02:58:41,426 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:41,426 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 636 transitions. [2019-10-03 02:58:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-03 02:58:41,430 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:41,430 INFO L411 BasicCegarLoop]: trace histogram [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, 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] [2019-10-03 02:58:41,431 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:41,431 INFO L82 PathProgramCache]: Analyzing trace with hash -128505367, now seen corresponding path program 1 times [2019-10-03 02:58:41,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:41,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:41,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:41,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:41,436 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:41,557 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-03 02:58:41,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:41,557 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:41,559 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2019-10-03 02:58:41,561 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [132], [134], [135], [150], [153], [154], [155], [164], [168], [172], [175], [180], [186], [188], [191], [230], [232], [235], [239], [240], [241], [242], [250], [254], [260], [294], [297], [299], [305], [312], [315], [319], [320], [323], [324], [339], [342], [343], [344], [437], [438], [448], [456], [457], [458], [459], [460], [462], [463], [464], [465], [466], [467], [468], [469], [470], [510], [511], [512], [513], [516], [517], [524], [525], [528], [529], [530], [531], [536], [537], [540], [541], [550], [551], [554], [562], [563], [564] [2019-10-03 02:58:41,610 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:41,610 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:41,726 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:41,728 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-03 02:58:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:41,734 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:41,838 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:41,838 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:41,846 INFO L420 sIntCurrentIteration]: We unified 145 AI predicates to 145 [2019-10-03 02:58:41,846 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:41,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:41,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-03 02:58:41,848 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:41,850 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:41,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:41,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:41,851 INFO L87 Difference]: Start difference. First operand 547 states and 636 transitions. Second operand 2 states. [2019-10-03 02:58:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:41,852 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:41,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:41,852 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 146 [2019-10-03 02:58:41,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:41,852 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:41,853 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:41,853 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 02:58:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:41,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:41,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:41,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 146 [2019-10-03 02:58:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:41,854 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:41,854 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:41,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:41,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:41,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:41 BoogieIcfgContainer [2019-10-03 02:58:41,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:41,867 INFO L168 Benchmark]: Toolchain (without parser) took 6121.67 ms. Allocated memory was 137.9 MB in the beginning and 268.4 MB in the end (delta: 130.5 MB). Free memory was 84.7 MB in the beginning and 151.2 MB in the end (delta: -66.5 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:41,869 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:41,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.62 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 84.4 MB in the beginning and 163.3 MB in the end (delta: -78.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:41,873 INFO L168 Benchmark]: Boogie Preprocessor took 131.40 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 158.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:41,875 INFO L168 Benchmark]: RCFGBuilder took 1508.46 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 158.9 MB in the beginning and 188.0 MB in the end (delta: -29.2 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:41,877 INFO L168 Benchmark]: TraceAbstraction took 3695.64 ms. Allocated memory was 219.2 MB in the beginning and 268.4 MB in the end (delta: 49.3 MB). Free memory was 188.0 MB in the beginning and 151.2 MB in the end (delta: 36.9 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:41,890 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.62 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 84.4 MB in the beginning and 163.3 MB in the end (delta: -78.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.40 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 158.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1508.46 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 158.9 MB in the beginning and 188.0 MB in the end (delta: -29.2 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3695.64 ms. Allocated memory was 219.2 MB in the beginning and 268.4 MB in the end (delta: 49.3 MB). Free memory was 188.0 MB in the beginning and 151.2 MB in the end (delta: 36.9 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 42 procedures, 252 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 929 SDtfs, 645 SDslu, 2042 SDs, 0 SdLazy, 816 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=547occurred in iteration=5, 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, 0.8551724137931035 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 81282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 51/55 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...