/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:31:48,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:31:48,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:31:48,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:31:48,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:31:48,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:31:48,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:31:48,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:31:48,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:31:48,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:31:48,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:31:48,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:31:48,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:31:48,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:31:48,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:31:48,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:31:48,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:31:48,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:31:48,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:31:48,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:31:48,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:31:48,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:31:48,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:31:48,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:31:48,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:31:48,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:31:48,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:31:48,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:31:48,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:31:48,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:31:48,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:31:48,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:31:48,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:31:48,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:31:48,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:31:48,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:31:48,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:31:48,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:31:48,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:31:48,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:31:48,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:31:48,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:31:48,688 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:31:48,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:31:48,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:31:48,693 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:31:48,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:31:48,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:31:48,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:31:48,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:31:48,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:31:48,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:31:48,698 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:31:48,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:31:48,698 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:31:48,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:31:48,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:31:48,699 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:31:48,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:31:48,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:31:48,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:31:48,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:31:48,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:31:48,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:31:48,700 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:31:48,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:31:48,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:31:48,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:31:48,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:31:48,990 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:31:48,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-07-07 12:31:49,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f964e3e54/9624c190402e42fd9fe78d6cd8db301c/FLAGbe9a00b76 [2020-07-07 12:31:49,546 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:31:49,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-07-07 12:31:49,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f964e3e54/9624c190402e42fd9fe78d6cd8db301c/FLAGbe9a00b76 [2020-07-07 12:31:49,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f964e3e54/9624c190402e42fd9fe78d6cd8db301c [2020-07-07 12:31:49,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:31:49,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:31:49,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:31:49,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:31:49,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:31:49,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:31:49" (1/1) ... [2020-07-07 12:31:49,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5907b480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:49, skipping insertion in model container [2020-07-07 12:31:49,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:31:49" (1/1) ... [2020-07-07 12:31:49,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:31:49,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:31:50,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:31:50,436 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:31:50,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:31:50,544 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:31:50,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50 WrapperNode [2020-07-07 12:31:50,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:31:50,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:31:50,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:31:50,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:31:50,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (1/1) ... [2020-07-07 12:31:50,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (1/1) ... [2020-07-07 12:31:50,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (1/1) ... [2020-07-07 12:31:50,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (1/1) ... [2020-07-07 12:31:50,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (1/1) ... [2020-07-07 12:31:50,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (1/1) ... [2020-07-07 12:31:50,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (1/1) ... [2020-07-07 12:31:50,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:31:50,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:31:50,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:31:50,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:31:50,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (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 [2020-07-07 12:31:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:31:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:31:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:31:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:31:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:31:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:31:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:31:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:31:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:31:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:31:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:31:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:31:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:31:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:31:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:31:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:31:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:31:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:31:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:31:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:31:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:31:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:31:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:31:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:31:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:31:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:31:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:31:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:31:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:31:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:31:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:31:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:31:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:31:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:31:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:31:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:31:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:31:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:31:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:31:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:31:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:31:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:31:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:31:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:31:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:31:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:31:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:31:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:31:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:31:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:31:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:31:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:31:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:31:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:31:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:31:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:31:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:31:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:31:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:31:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:31:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:31:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:31:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:31:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:31:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:31:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:31:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:31:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:31:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:31:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:31:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:31:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:31:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:31:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:31:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:31:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:31:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:31:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:31:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:31:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:31:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:31:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:31:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:31:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:31:51,799 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:31:51,799 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:31:51,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:31:51 BoogieIcfgContainer [2020-07-07 12:31:51,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:31:51,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:31:51,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:31:51,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:31:51,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:31:49" (1/3) ... [2020-07-07 12:31:51,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c09abb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:31:51, skipping insertion in model container [2020-07-07 12:31:51,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:50" (2/3) ... [2020-07-07 12:31:51,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c09abb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:31:51, skipping insertion in model container [2020-07-07 12:31:51,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:31:51" (3/3) ... [2020-07-07 12:31:51,813 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-07-07 12:31:51,823 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:31:51,830 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:31:51,843 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:31:51,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:31:51,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:31:51,859 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:31:51,859 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:31:51,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:31:51,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:31:51,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:31:51,860 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:31:51,878 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-07-07 12:31:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:31:51,898 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:51,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:31:51,900 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:51,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:51,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1745842468, now seen corresponding path program 1 times [2020-07-07 12:31:51,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:51,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546671793] [2020-07-07 12:31:51,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,631 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:52,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:31:52,832 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:52,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546671793] [2020-07-07 12:31:52,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:52,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:31:52,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345525] [2020-07-07 12:31:52,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:31:52,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:52,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:31:52,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:31:52,865 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 3 states. [2020-07-07 12:31:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:54,084 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2020-07-07 12:31:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:31:54,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:31:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:54,103 INFO L225 Difference]: With dead ends: 413 [2020-07-07 12:31:54,104 INFO L226 Difference]: Without dead ends: 263 [2020-07-07 12:31:54,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:31:54,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-07-07 12:31:54,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-07-07 12:31:54,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-07-07 12:31:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2020-07-07 12:31:54,231 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 153 [2020-07-07 12:31:54,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:54,233 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2020-07-07 12:31:54,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:31:54,233 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2020-07-07 12:31:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:31:54,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:54,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:31:54,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:31:54,238 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:54,239 INFO L82 PathProgramCache]: Analyzing trace with hash 998854656, now seen corresponding path program 1 times [2020-07-07 12:31:54,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:54,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915927633] [2020-07-07 12:31:54,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,622 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:31:54,727 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:54,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915927633] [2020-07-07 12:31:54,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:54,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:31:54,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865807652] [2020-07-07 12:31:54,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:31:54,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:54,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:31:54,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:31:54,732 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 4 states. [2020-07-07 12:31:55,335 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:31:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:56,015 INFO L93 Difference]: Finished difference Result 330 states and 370 transitions. [2020-07-07 12:31:56,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:31:56,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:31:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:56,021 INFO L225 Difference]: With dead ends: 330 [2020-07-07 12:31:56,021 INFO L226 Difference]: Without dead ends: 246 [2020-07-07 12:31:56,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:31:56,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-07 12:31:56,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-07-07 12:31:56,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-07 12:31:56,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-07-07 12:31:56,089 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 154 [2020-07-07 12:31:56,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:56,090 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-07-07 12:31:56,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:31:56,090 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-07-07 12:31:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:31:56,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:56,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:31:56,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:31:56,093 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:56,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:56,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1282576670, now seen corresponding path program 1 times [2020-07-07 12:31:56,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:56,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057685816] [2020-07-07 12:31:56,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,448 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:31:56,604 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:56,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057685816] [2020-07-07 12:31:56,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:56,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:31:56,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724697001] [2020-07-07 12:31:56,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:31:56,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:56,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:31:56,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:31:56,607 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 9 states. [2020-07-07 12:31:57,073 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:31:57,379 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:31:57,630 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:31:57,884 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:58,161 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:31:58,401 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:59,570 INFO L93 Difference]: Finished difference Result 350 states and 395 transitions. [2020-07-07 12:31:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:31:59,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:31:59,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:59,575 INFO L225 Difference]: With dead ends: 350 [2020-07-07 12:31:59,575 INFO L226 Difference]: Without dead ends: 246 [2020-07-07 12:31:59,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:31:59,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-07 12:31:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-07-07 12:31:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-07 12:31:59,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2020-07-07 12:31:59,630 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 163 [2020-07-07 12:31:59,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:59,631 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2020-07-07 12:31:59,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:31:59,631 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2020-07-07 12:31:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:31:59,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:59,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:31:59,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:31:59,634 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:59,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:59,635 INFO L82 PathProgramCache]: Analyzing trace with hash -451135243, now seen corresponding path program 1 times [2020-07-07 12:31:59,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:59,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661013862] [2020-07-07 12:31:59,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:59,988 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:00,229 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:00,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661013862] [2020-07-07 12:32:00,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:00,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:32:00,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367721113] [2020-07-07 12:32:00,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:32:00,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:00,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:32:00,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:32:00,235 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand 9 states. [2020-07-07 12:32:00,947 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:02,647 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:02,872 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:03,162 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:03,417 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:03,702 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:04,072 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:04,308 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:04,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:04,628 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-07-07 12:32:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:32:04,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-07-07 12:32:04,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:04,635 INFO L225 Difference]: With dead ends: 489 [2020-07-07 12:32:04,635 INFO L226 Difference]: Without dead ends: 385 [2020-07-07 12:32:04,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:32:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-07-07 12:32:04,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 310. [2020-07-07 12:32:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-07-07 12:32:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 341 transitions. [2020-07-07 12:32:04,745 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 341 transitions. Word has length 171 [2020-07-07 12:32:04,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:04,746 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 341 transitions. [2020-07-07 12:32:04,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:32:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 341 transitions. [2020-07-07 12:32:04,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-07 12:32:04,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:04,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:32:04,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:32:04,750 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:04,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:04,750 INFO L82 PathProgramCache]: Analyzing trace with hash -481228589, now seen corresponding path program 1 times [2020-07-07 12:32:04,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:04,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242823329] [2020-07-07 12:32:04,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:05,063 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:05,064 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:32:05,064 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:32:05,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:32:05,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:32:05 BoogieIcfgContainer [2020-07-07 12:32:05,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:32:05,091 INFO L168 Benchmark]: Toolchain (without parser) took 15185.82 ms. Allocated memory was 146.3 MB in the beginning and 524.3 MB in the end (delta: 378.0 MB). Free memory was 103.6 MB in the beginning and 480.2 MB in the end (delta: -376.6 MB). Peak memory consumption was 356.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:05,092 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.3 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:32:05,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.75 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 103.4 MB in the beginning and 171.9 MB in the end (delta: -68.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:05,094 INFO L168 Benchmark]: Boogie Preprocessor took 103.93 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:05,095 INFO L168 Benchmark]: RCFGBuilder took 1155.75 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.9 MB in the beginning and 178.8 MB in the end (delta: -10.9 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:05,095 INFO L168 Benchmark]: TraceAbstraction took 13282.87 ms. Allocated memory was 236.5 MB in the beginning and 524.3 MB in the end (delta: 287.8 MB). Free memory was 178.8 MB in the beginning and 480.2 MB in the end (delta: -301.5 MB). Peak memory consumption was 341.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:05,099 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 146.3 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.75 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 103.4 MB in the beginning and 171.9 MB in the end (delta: -68.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.93 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1155.75 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.9 MB in the beginning and 178.8 MB in the end (delta: -10.9 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13282.87 ms. Allocated memory was 236.5 MB in the beginning and 524.3 MB in the end (delta: 287.8 MB). Free memory was 178.8 MB in the beginning and 480.2 MB in the end (delta: -301.5 MB). Peak memory consumption was 341.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L95] int pumpRunning = 0; [L96] int systemActive = 1; [L297] int cleanupTimeShifts = 4; [L562] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L370] int retValue_acc ; [L371] int tmp ; [L375] FCALL select_helpers() [L376] FCALL select_features() [L377] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L377] RET, EXPR valid_product() [L377] tmp = valid_product() [L379] COND TRUE \read(tmp) [L381] FCALL setup() [L382] CALL runTest() [L364] CALL test() [L233] int splverifierCounter ; [L234] int tmp ; [L235] int tmp___0 ; [L236] int tmp___1 ; [L237] int tmp___2 ; [L240] splverifierCounter = 0 [L242] COND TRUE 1 [L244] COND TRUE splverifierCounter < 4 [L250] tmp = __VERIFIER_nondet_int() [L252] COND TRUE \read(tmp) [L254] CALL waterRise() [L778] COND TRUE waterLevel < 2 [L779] waterLevel = waterLevel + 1 [L254] RET waterRise() [L260] tmp___0 = __VERIFIER_nondet_int() [L262] COND FALSE !(\read(tmp___0)) [L270] tmp___2 = __VERIFIER_nondet_int() [L272] COND TRUE \read(tmp___2) [L285] CALL timeShift() [L103] COND FALSE !(\read(pumpRunning)) [L110] COND TRUE \read(systemActive) [L112] CALL processEnvironment() [L132] int tmp ; [L135] COND FALSE !(\read(pumpRunning)) [L150] FCALL processEnvironment__wrappee__base() [L112] RET processEnvironment() [L118] CALL __utac_acc__Specification3_spec__1() [L841] int tmp ; [L842] int tmp___0 ; [L843] int tmp___1 ; [L847] CALL, EXPR isMethaneLevelCritical() [L799] int retValue_acc ; [L802] retValue_acc = methaneLevelCritical [L803] return (retValue_acc); [L847] RET, EXPR isMethaneLevelCritical() [L847] tmp = isMethaneLevelCritical() [L849] COND FALSE !(\read(tmp)) [L853] CALL, EXPR getWaterLevel() [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L853] RET, EXPR getWaterLevel() [L853] tmp___0 = getWaterLevel() [L855] COND TRUE tmp___0 == 2 [L857] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L857] RET, EXPR isPumpRunning() [L857] tmp___1 = isPumpRunning() [L859] COND FALSE !(\read(tmp___1)) [L863] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 817 SDtfs, 956 SDslu, 1090 SDs, 0 SdLazy, 2139 SolverSat, 319 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...