/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_spec4_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:04:07,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:04:07,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:04:07,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:04:07,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:04:07,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:04:07,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:04:07,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:04:07,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:04:07,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:04:07,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:04:07,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:04:07,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:04:07,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:04:07,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:04:07,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:04:07,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:04:07,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:04:07,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:04:07,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:04:07,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:04:07,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:04:07,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:04:07,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:04:07,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:04:07,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:04:07,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:04:07,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:04:07,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:04:07,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:04:07,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:04:07,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:04:07,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:04:07,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:04:07,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:04:07,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:04:07,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:04:07,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:04:07,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:04:07,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:04:07,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:04:07,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:04:07,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:04:07,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:04:07,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:04:07,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:04:07,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:04:07,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:04:07,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:04:07,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:04:07,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:04:07,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:04:07,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:04:07,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:04:07,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:04:07,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:04:07,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:04:07,869 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:04:07,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:04:07,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:04:07,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:04:07,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:04:07,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:04:07,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:04:07,870 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:04:08,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:04:08,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:04:08,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:04:08,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:04:08,431 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:04:08,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c [2020-10-23 20:04:08,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b5144c4/802e7795b17d4e6597bea6a301b89c31/FLAGd74841776 [2020-10-23 20:04:09,384 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:04:09,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product19.cil.c [2020-10-23 20:04:09,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b5144c4/802e7795b17d4e6597bea6a301b89c31/FLAGd74841776 [2020-10-23 20:04:09,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b5144c4/802e7795b17d4e6597bea6a301b89c31 [2020-10-23 20:04:09,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:04:09,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:04:09,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:04:09,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:04:09,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:04:09,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:04:09" (1/1) ... [2020-10-23 20:04:09,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301a6343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:09, skipping insertion in model container [2020-10-23 20:04:09,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:04:09" (1/1) ... [2020-10-23 20:04:09,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:04:09,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:04:10,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:04:10,365 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:04:10,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:04:10,491 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:04:10,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10 WrapperNode [2020-10-23 20:04:10,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:04:10,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:04:10,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:04:10,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:04:10,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (1/1) ... [2020-10-23 20:04:10,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (1/1) ... [2020-10-23 20:04:10,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (1/1) ... [2020-10-23 20:04:10,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (1/1) ... [2020-10-23 20:04:10,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (1/1) ... [2020-10-23 20:04:10,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (1/1) ... [2020-10-23 20:04:10,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (1/1) ... [2020-10-23 20:04:10,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:04:10,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:04:10,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:04:10,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:04:10,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (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 [2020-10-23 20:04:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:04:10,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:04:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:04:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:04:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:04:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:04:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:04:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:04:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:04:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:04:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:04:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:04:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:04:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:04:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:04:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:04:10,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:04:10,726 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:04:10,727 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:04:10,727 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:04:10,728 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:04:10,728 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:04:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:04:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:04:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:04:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:04:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:04:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:04:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:04:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:04:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:04:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:04:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:04:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:04:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:04:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:04:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:04:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:04:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:04:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:04:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:04:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:04:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:04:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:04:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:04:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:04:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:04:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:04:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:04:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:04:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:04:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:04:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:04:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:04:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:04:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:04:10,737 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:04:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:04:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:04:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:04:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:04:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:04:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:04:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:04:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:04:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:04:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:04:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:04:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:04:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:04:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:04:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:04:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:04:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:04:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:04:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:04:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:04:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:04:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:04:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:04:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:04:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:04:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:04:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:04:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:04:12,085 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:04:12,085 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:04:12,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:04:12 BoogieIcfgContainer [2020-10-23 20:04:12,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:04:12,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:04:12,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:04:12,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:04:12,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:04:09" (1/3) ... [2020-10-23 20:04:12,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b6869d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:04:12, skipping insertion in model container [2020-10-23 20:04:12,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:04:10" (2/3) ... [2020-10-23 20:04:12,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b6869d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:04:12, skipping insertion in model container [2020-10-23 20:04:12,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:04:12" (3/3) ... [2020-10-23 20:04:12,102 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2020-10-23 20:04:12,118 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:04:12,126 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:04:12,142 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:04:12,171 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:04:12,171 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:04:12,172 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:04:12,172 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:04:12,172 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:04:12,172 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:04:12,172 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:04:12,172 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:04:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states. [2020-10-23 20:04:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:04:12,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:04:12,226 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] [2020-10-23 20:04:12,227 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:04:12,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:04:12,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1873611406, now seen corresponding path program 1 times [2020-10-23 20:04:12,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:04:12,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654193673] [2020-10-23 20:04:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:04:12,353 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:04:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,259 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:04:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:04:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:04:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:04:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:04:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:04:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:04:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:04:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:13,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:04:13,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654193673] [2020-10-23 20:04:13,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:04:13,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:04:13,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764316420] [2020-10-23 20:04:13,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:04:13,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:04:13,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:04:13,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:04:13,608 INFO L87 Difference]: Start difference. First operand 290 states. Second operand 3 states. [2020-10-23 20:04:15,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:04:15,478 INFO L93 Difference]: Finished difference Result 437 states and 523 transitions. [2020-10-23 20:04:15,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:04:15,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:04:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:04:15,499 INFO L225 Difference]: With dead ends: 437 [2020-10-23 20:04:15,500 INFO L226 Difference]: Without dead ends: 277 [2020-10-23 20:04:15,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:04:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-23 20:04:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-10-23 20:04:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-23 20:04:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-10-23 20:04:15,720 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 148 [2020-10-23 20:04:15,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:04:15,721 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-10-23 20:04:15,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:04:15,722 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-10-23 20:04:15,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:04:15,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:04:15,728 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] [2020-10-23 20:04:15,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:04:15,728 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:04:15,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:04:15,729 INFO L82 PathProgramCache]: Analyzing trace with hash -195732592, now seen corresponding path program 1 times [2020-10-23 20:04:15,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:04:15,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353803777] [2020-10-23 20:04:15,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:04:15,736 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:04:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,274 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:04:16,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:04:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:04:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:04:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:04:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:04:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:04:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:04:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:04:16,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353803777] [2020-10-23 20:04:16,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:04:16,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:04:16,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708953408] [2020-10-23 20:04:16,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:04:16,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:04:16,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:04:16,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:04:16,403 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-10-23 20:04:17,405 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:04:18,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:04:18,585 INFO L93 Difference]: Finished difference Result 345 states and 386 transitions. [2020-10-23 20:04:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:04:18,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:04:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:04:18,593 INFO L225 Difference]: With dead ends: 345 [2020-10-23 20:04:18,593 INFO L226 Difference]: Without dead ends: 260 [2020-10-23 20:04:18,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:04:18,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-23 20:04:18,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-10-23 20:04:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-23 20:04:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-10-23 20:04:18,762 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 149 [2020-10-23 20:04:18,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:04:18,765 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-10-23 20:04:18,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:04:18,765 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-10-23 20:04:18,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:04:18,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:04:18,774 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] [2020-10-23 20:04:18,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:04:18,775 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:04:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:04:18,776 INFO L82 PathProgramCache]: Analyzing trace with hash 2041467106, now seen corresponding path program 1 times [2020-10-23 20:04:18,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:04:18,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442923267] [2020-10-23 20:04:18,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:04:18,782 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:04:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,397 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:04:19,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:04:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:04:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:04:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:04:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:04:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:04:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:04:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:19,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:04:19,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442923267] [2020-10-23 20:04:19,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:04:19,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:04:19,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350432163] [2020-10-23 20:04:19,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:04:19,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:04:19,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:04:19,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:04:19,659 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 9 states. [2020-10-23 20:04:20,400 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:04:21,011 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:04:21,458 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:04:21,904 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:04:22,338 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:04:22,755 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:04:24,131 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:04:26,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:04:26,480 INFO L93 Difference]: Finished difference Result 576 states and 662 transitions. [2020-10-23 20:04:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:04:26,480 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:04:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:04:26,493 INFO L225 Difference]: With dead ends: 576 [2020-10-23 20:04:26,494 INFO L226 Difference]: Without dead ends: 465 [2020-10-23 20:04:26,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:04:26,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-23 20:04:26,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 400. [2020-10-23 20:04:26,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-23 20:04:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 446 transitions. [2020-10-23 20:04:26,748 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 446 transitions. Word has length 158 [2020-10-23 20:04:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:04:26,749 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 446 transitions. [2020-10-23 20:04:26,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:04:26,749 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 446 transitions. [2020-10-23 20:04:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:04:26,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:04:26,753 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] [2020-10-23 20:04:26,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:04:26,753 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:04:26,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:04:26,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1491622365, now seen corresponding path program 1 times [2020-10-23 20:04:26,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:04:26,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126081684] [2020-10-23 20:04:26,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:04:26,759 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:04:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,415 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:04:27,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:04:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:04:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:04:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:04:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:04:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:04:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:04:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:04:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:04:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:04:27,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126081684] [2020-10-23 20:04:27,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:04:27,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:04:27,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875503869] [2020-10-23 20:04:27,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:04:27,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:04:27,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:04:27,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:04:27,781 INFO L87 Difference]: Start difference. First operand 400 states and 446 transitions. Second operand 14 states. [2020-10-23 20:04:28,605 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:04:29,167 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:04:29,604 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:04:30,059 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:04:30,501 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:04:30,922 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:04:31,945 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:04:33,536 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:04:34,010 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:04:34,533 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:04:35,066 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:04:35,521 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:04:35,954 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:04:36,379 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:04:36,806 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:04:37,243 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:04:37,810 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:04:38,299 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:04:38,808 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:04:39,222 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:04:41,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:04:41,447 INFO L93 Difference]: Finished difference Result 1463 states and 1864 transitions. [2020-10-23 20:04:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:04:41,448 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2020-10-23 20:04:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:04:41,461 INFO L225 Difference]: With dead ends: 1463 [2020-10-23 20:04:41,461 INFO L226 Difference]: Without dead ends: 1178 [2020-10-23 20:04:41,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:04:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2020-10-23 20:04:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 905. [2020-10-23 20:04:41,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-23 20:04:42,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1047 transitions. [2020-10-23 20:04:42,018 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1047 transitions. Word has length 166 [2020-10-23 20:04:42,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:04:42,019 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1047 transitions. [2020-10-23 20:04:42,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:04:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1047 transitions. [2020-10-23 20:04:42,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 20:04:42,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:04:42,024 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] [2020-10-23 20:04:42,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:04:42,025 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:04:42,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:04:42,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1989515489, now seen corresponding path program 1 times [2020-10-23 20:04:42,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:04:42,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954290165] [2020-10-23 20:04:42,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:04:42,031 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:04:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,541 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:04:42,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:04:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:04:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:04:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:04:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:04:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 20:04:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:04:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:04:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:04:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:04:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 20:04:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:04:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:04:42,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954290165] [2020-10-23 20:04:42,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:04:42,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:04:42,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837713792] [2020-10-23 20:04:42,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:04:42,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:04:42,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:04:42,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:04:42,754 INFO L87 Difference]: Start difference. First operand 905 states and 1047 transitions. Second operand 6 states. [2020-10-23 20:04:43,465 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:04:44,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:04:44,536 INFO L93 Difference]: Finished difference Result 1468 states and 1750 transitions. [2020-10-23 20:04:44,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:04:44,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-10-23 20:04:44,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:04:44,543 INFO L225 Difference]: With dead ends: 1468 [2020-10-23 20:04:44,543 INFO L226 Difference]: Without dead ends: 678 [2020-10-23 20:04:44,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:04:44,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-23 20:04:44,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 644. [2020-10-23 20:04:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-23 20:04:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 703 transitions. [2020-10-23 20:04:44,791 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 703 transitions. Word has length 176 [2020-10-23 20:04:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:04:44,791 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 703 transitions. [2020-10-23 20:04:44,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:04:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 703 transitions. [2020-10-23 20:04:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:04:44,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:04:44,797 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:04:44,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:04:44,797 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:04:44,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:04:44,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1438996444, now seen corresponding path program 1 times [2020-10-23 20:04:44,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:04:44,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99053609] [2020-10-23 20:04:44,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:04:44,981 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:04:45,367 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:04:45,635 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:04:45,893 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:04:46,125 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:04:46,369 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:04:46,619 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:04:46,865 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:04:47,115 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:04:47,377 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:04:47,655 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:04:47,896 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:04:48,132 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:04:48,369 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:04:48,835 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:49,149 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:49,493 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:49,873 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:50,217 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:50,571 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:50,902 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:51,240 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:51,244 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:52,329 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:04:55,132 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:04:55,145 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:57,877 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:04:57,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:59,054 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:04:59,061 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:01,647 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:05:04,240 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:05:04,247 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:06,785 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:05:08,187 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:08,197 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:08,203 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:09,597 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:05:09,602 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:12,101 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:05:12,107 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:14,632 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:05:14,658 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:17,182 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:05:19,737 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:05:19,745 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:22,275 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:05:22,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:24,824 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:05:24,829 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:27,377 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:05:27,388 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:27,396 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:29,953 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:05:29,957 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:32,526 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:05:32,529 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:35,076 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:05:35,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:36,363 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:38,945 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:40,560 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:40,564 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:43,121 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:43,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:45,685 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:05:45,691 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:45,695 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:48,325 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:05:48,330 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:50,856 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:05:53,374 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:05:55,832 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:05:55,837 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:58,366 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:05:59,703 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:05:59,707 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:02,255 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:06:04,827 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:06:04,832 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:04,836 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:05,217 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:05,581 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:06:05,966 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:06,332 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:06,702 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:07,073 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:06:07,457 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:06:07,822 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:06:07,825 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:10,402 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:10,407 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:12,137 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:12,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:14,667 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:14,677 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:17,252 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:17,255 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:18,926 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:18,929 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:20,300 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:20,303 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:22,875 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:22,881 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:24,466 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:24,473 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:24,824 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:25,198 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:25,543 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:25,897 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:26,240 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:26,582 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:26,932 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:27,286 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:27,288 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:29,850 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:29,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:32,440 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:32,443 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:35,045 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:37,631 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:37,634 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:40,239 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:40,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:42,833 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:42,837 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:45,435 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:45,439 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:47,076 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:47,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:47,083 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:49,669 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:49,676 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:52,309 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:52,313 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:54,939 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:54,942 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:56,538 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:56,542 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:59,078 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:59,082 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:01,638 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:01,641 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:04,229 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:04,232 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:06,863 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:07:06,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:06,869 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:09,472 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:09,476 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:11,281 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:11,284 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:13,876 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:13,879 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:16,522 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:16,525 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:18,493 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:21,110 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:21,113 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:23,947 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:23,951 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:26,070 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:26,076 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:26,086 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:26,485 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:07:26,909 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:07:27,321 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:27,731 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:07:28,133 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:07:28,532 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:28,938 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:07:29,355 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:29,358 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:29,776 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:07:30,201 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:07:30,615 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:31,012 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:31,425 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:07:31,841 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:07:32,257 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:32,670 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:07:32,672 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:33,091 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:33,498 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:07:33,909 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:07:34,330 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:34,756 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:07:35,187 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:07:35,609 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:07:36,046 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:07:36,049 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:07:36,549 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:07:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:07:36,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:07:37,178 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:07:37,179 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:07:37,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:07:37,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:07:37 BoogieIcfgContainer [2020-10-23 20:07:37,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:07:37,227 INFO L168 Benchmark]: Toolchain (without parser) took 207586.02 ms. Allocated memory was 151.0 MB in the beginning and 675.3 MB in the end (delta: 524.3 MB). Free memory was 126.1 MB in the beginning and 567.5 MB in the end (delta: -441.4 MB). Peak memory consumption was 83.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:07:37,228 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 124.4 MB in the end (delta: 16.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:07:37,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.49 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:07:37,235 INFO L168 Benchmark]: Boogie Preprocessor took 124.80 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 132.5 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:07:37,235 INFO L168 Benchmark]: RCFGBuilder took 1469.88 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 88.0 MB in the end (delta: 44.4 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:07:37,236 INFO L168 Benchmark]: TraceAbstraction took 205128.78 ms. Allocated memory was 151.0 MB in the beginning and 675.3 MB in the end (delta: 524.3 MB). Free memory was 87.5 MB in the beginning and 567.5 MB in the end (delta: -480.0 MB). Peak memory consumption was 44.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:07:37,239 INFO L339 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 151.0 MB. Free memory was 124.4 MB in the beginning and 124.4 MB in the end (delta: 16.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 843.49 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 124.80 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 132.5 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1469.88 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 88.0 MB in the end (delta: 44.4 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 205128.78 ms. Allocated memory was 151.0 MB in the beginning and 675.3 MB in the end (delta: 524.3 MB). Free memory was 87.5 MB in the beginning and 567.5 MB in the end (delta: -480.0 MB). Peak memory consumption was 44.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L510] int pumpRunning = 0; [L511] int systemActive = 1; [L755] int cleanupTimeShifts = 4; [L831] int retValue_acc ; [L832] int tmp ; [L836] FCALL select_helpers() [L837] FCALL select_features() [L838] CALL, EXPR valid_product() [L880] int retValue_acc ; [L883] retValue_acc = 1 [L884] return (retValue_acc); [L838] RET, EXPR valid_product() [L838] tmp = valid_product() [L840] COND TRUE \read(tmp) [L842] FCALL setup() [L843] CALL runTest() [L822] CALL test() [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 [L698] COND TRUE 1 [L700] COND TRUE splverifierCounter < 4 [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) [L710] CALL waterRise() [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 [L710] RET waterRise() [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___2)) [L732] tmp___1 = __VERIFIER_nondet_int() [L734] COND TRUE \read(tmp___1) [L736] CALL stopSystem() [L666] COND FALSE !(\read(pumpRunning)) [L673] systemActive = 0 [L736] RET stopSystem() [L743] CALL timeShift() [L518] COND FALSE !(\read(pumpRunning)) [L525] COND FALSE !(\read(systemActive)) [L533] CALL __utac_acc__Specification4_spec__1() [L890] int tmp ; [L891] int tmp___0 ; [L895] CALL, EXPR getWaterLevel() [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L895] RET, EXPR getWaterLevel() [L895] tmp = getWaterLevel() [L897] COND FALSE !(tmp == 0) [L533] RET __utac_acc__Specification4_spec__1() [L743] RET timeShift() [L698] COND TRUE 1 [L700] COND TRUE splverifierCounter < 4 [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) [L710] CALL waterRise() [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 [L710] RET waterRise() [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) [L743] CALL timeShift() [L518] COND FALSE !(\read(pumpRunning)) [L525] COND FALSE !(\read(systemActive)) [L533] CALL __utac_acc__Specification4_spec__1() [L890] int tmp ; [L891] int tmp___0 ; [L895] CALL, EXPR getWaterLevel() [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L895] RET, EXPR getWaterLevel() [L895] tmp = getWaterLevel() [L897] COND TRUE tmp == 0 [L899] CALL, EXPR isPumpRunning() [L599] int retValue_acc ; [L602] retValue_acc = pumpRunning [L603] return (retValue_acc); [L899] RET, EXPR isPumpRunning() [L899] tmp___0 = isPumpRunning() [L901] COND TRUE \read(tmp___0) [L903] CALL __automaton_fail() [L682] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product19.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 622 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 205.0s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 26.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1048 SDtfs, 1740 SDslu, 1936 SDs, 0 SdLazy, 3768 SolverSat, 559 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=905occurred 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: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 447 StatesRemovedByMinimization, 5 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...