/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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:14:46,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:14:46,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:14:46,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:14:46,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:14:46,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:14:46,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:14:46,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:14:46,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:14:46,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:14:46,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:14:46,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:14:46,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:14:46,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:14:46,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:14:46,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:14:46,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:14:46,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:14:46,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:14:46,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:14:46,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:14:46,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:14:46,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:14:46,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:14:46,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:14:46,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:14:46,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:14:46,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:14:46,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:14:46,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:14:46,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:14:46,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:14:46,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:14:46,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:14:46,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:14:46,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:14:46,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:14:46,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:14:46,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:14:46,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:14:46,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:14:46,993 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 20:14:47,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:14:47,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:14:47,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:14:47,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:14:47,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:14:47,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:14:47,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:14:47,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:14:47,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:14:47,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:14:47,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:14:47,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:14:47,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:14:47,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:14:47,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:14:47,033 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:14:47,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:14:47,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:14:47,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:14:47,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:14:47,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:14:47,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:14:47,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:14:47,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:14:47,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:14:47,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:14:47,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:14:47,573 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:14:47,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-10-23 20:14:47,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4724aa1e4/6849fe54d523468fb5353966108231e5/FLAGd0bebc19f [2020-10-23 20:14:48,378 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:14:48,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-10-23 20:14:48,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4724aa1e4/6849fe54d523468fb5353966108231e5/FLAGd0bebc19f [2020-10-23 20:14:48,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4724aa1e4/6849fe54d523468fb5353966108231e5 [2020-10-23 20:14:48,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:14:48,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:14:48,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:14:48,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:14:48,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:14:48,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:14:48" (1/1) ... [2020-10-23 20:14:48,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3950dbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:48, skipping insertion in model container [2020-10-23 20:14:48,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:14:48" (1/1) ... [2020-10-23 20:14:48,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:14:48,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:14:49,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:14:49,267 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:14:49,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:14:49,492 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:14:49,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49 WrapperNode [2020-10-23 20:14:49,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:14:49,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:14:49,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:14:49,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:14:49,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (1/1) ... [2020-10-23 20:14:49,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (1/1) ... [2020-10-23 20:14:49,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (1/1) ... [2020-10-23 20:14:49,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (1/1) ... [2020-10-23 20:14:49,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (1/1) ... [2020-10-23 20:14:49,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (1/1) ... [2020-10-23 20:14:49,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (1/1) ... [2020-10-23 20:14:49,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:14:49,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:14:49,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:14:49,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:14:49,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (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 20:14:49,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:14:49,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:14:49,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:14:49,797 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:14:49,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:14:49,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:14:49,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:14:49,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:14:49,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:14:49,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:14:49,799 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:14:49,799 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:14:49,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:14:49,799 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:14:49,800 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:14:49,800 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:14:49,800 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:14:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:14:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:14:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:14:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:14:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:14:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:14:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:14:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:14:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:14:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:14:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:14:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:14:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:14:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:14:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:14:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:14:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:14:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:14:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:14:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:14:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:14:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:14:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:14:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:14:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:14:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:14:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:14:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:14:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:14:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:14:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:14:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:14:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:14:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:14:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:14:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:14:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:14:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:14:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:14:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:14:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:14:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:14:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:14:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:14:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:14:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:14:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:14:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:14:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:14:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:14:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:14:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:14:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:14:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:14:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:14:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:14:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:14:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:14:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:14:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:14:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:14:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:14:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:14:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:14:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:14:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:14:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:14:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:14:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:14:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:14:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:14:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:14:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:14:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:14:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:14:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:14:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:14:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:14:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:14:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:14:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:14:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:14:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:14:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:14:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:14:51,481 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:14:51,482 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:14:51,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:14:51 BoogieIcfgContainer [2020-10-23 20:14:51,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:14:51,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:14:51,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:14:51,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:14:51,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:14:48" (1/3) ... [2020-10-23 20:14:51,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b7b4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:14:51, skipping insertion in model container [2020-10-23 20:14:51,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:14:49" (2/3) ... [2020-10-23 20:14:51,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b7b4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:14:51, skipping insertion in model container [2020-10-23 20:14:51,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:14:51" (3/3) ... [2020-10-23 20:14:51,501 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-10-23 20:14:51,516 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:14:51,525 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:14:51,549 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:14:51,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:14:51,579 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:14:51,579 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:14:51,580 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:14:51,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:14:51,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:14:51,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:14:51,580 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:14:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states. [2020-10-23 20:14:51,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:14:51,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:51,661 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 20:14:51,661 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 20:14:51,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:51,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1828369674, now seen corresponding path program 1 times [2020-10-23 20:14:51,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:51,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085432759] [2020-10-23 20:14:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:51,789 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,602 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:52,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:14:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:14:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:52,864 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 20:14:52,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085432759] [2020-10-23 20:14:52,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:52,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:14:52,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983476624] [2020-10-23 20:14:52,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:14:52,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:52,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:14:52,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:14:52,895 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 3 states. [2020-10-23 20:14:55,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:14:55,237 INFO L93 Difference]: Finished difference Result 585 states and 695 transitions. [2020-10-23 20:14:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:14:55,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:14:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:14:55,260 INFO L225 Difference]: With dead ends: 585 [2020-10-23 20:14:55,260 INFO L226 Difference]: Without dead ends: 354 [2020-10-23 20:14:55,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:14:55,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-23 20:14:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 307. [2020-10-23 20:14:55,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-23 20:14:55,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 337 transitions. [2020-10-23 20:14:55,465 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 337 transitions. Word has length 148 [2020-10-23 20:14:55,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:14:55,466 INFO L481 AbstractCegarLoop]: Abstraction has 307 states and 337 transitions. [2020-10-23 20:14:55,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:14:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 337 transitions. [2020-10-23 20:14:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:14:55,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:55,471 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 20:14:55,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:14:55,472 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 20:14:55,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:55,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1126605744, now seen corresponding path program 1 times [2020-10-23 20:14:55,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:55,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983907753] [2020-10-23 20:14:55,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:55,477 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,038 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:56,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:14:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:14:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:14:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:14:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:14:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:14:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:56,211 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 20:14:56,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983907753] [2020-10-23 20:14:56,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:14:56,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:14:56,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231743084] [2020-10-23 20:14:56,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:14:56,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:14:56,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:14:56,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:14:56,219 INFO L87 Difference]: Start difference. First operand 307 states and 337 transitions. Second operand 4 states. [2020-10-23 20:14:57,313 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:14:59,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:14:59,157 INFO L93 Difference]: Finished difference Result 493 states and 558 transitions. [2020-10-23 20:14:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:14:59,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:14:59,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:14:59,164 INFO L225 Difference]: With dead ends: 493 [2020-10-23 20:14:59,164 INFO L226 Difference]: Without dead ends: 337 [2020-10-23 20:14:59,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:14:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-23 20:14:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 297. [2020-10-23 20:14:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-23 20:14:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 324 transitions. [2020-10-23 20:14:59,327 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 324 transitions. Word has length 149 [2020-10-23 20:14:59,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:14:59,328 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 324 transitions. [2020-10-23 20:14:59,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:14:59,328 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 324 transitions. [2020-10-23 20:14:59,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:14:59,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:14:59,331 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 20:14:59,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:14:59,332 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 20:14:59,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:14:59,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1215725069, now seen corresponding path program 1 times [2020-10-23 20:14:59,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:14:59,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407020218] [2020-10-23 20:14:59,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:14:59,337 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:14:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:14:59,898 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:14:59,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:14:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:00,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:15:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:00,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:15:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:00,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:15:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:00,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:15:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:00,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:15:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:00,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:15:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:00,162 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 20:15:00,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407020218] [2020-10-23 20:15:00,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:15:00,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:15:00,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638846725] [2020-10-23 20:15:00,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:15:00,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:15:00,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:15:00,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:15:00,168 INFO L87 Difference]: Start difference. First operand 297 states and 324 transitions. Second operand 9 states. [2020-10-23 20:15:00,876 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:15:01,403 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:15:01,804 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:15:02,201 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:02,626 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:02,956 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:04,158 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:15:08,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:15:08,120 INFO L93 Difference]: Finished difference Result 801 states and 924 transitions. [2020-10-23 20:15:08,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:15:08,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:15:08,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:15:08,126 INFO L225 Difference]: With dead ends: 801 [2020-10-23 20:15:08,126 INFO L226 Difference]: Without dead ends: 619 [2020-10-23 20:15:08,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:15:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2020-10-23 20:15:08,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 542. [2020-10-23 20:15:08,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-23 20:15:08,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 610 transitions. [2020-10-23 20:15:08,442 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 610 transitions. Word has length 158 [2020-10-23 20:15:08,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:15:08,444 INFO L481 AbstractCegarLoop]: Abstraction has 542 states and 610 transitions. [2020-10-23 20:15:08,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:15:08,445 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 610 transitions. [2020-10-23 20:15:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:15:08,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:15:08,453 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] [2020-10-23 20:15:08,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:15:08,454 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 20:15:08,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:15:08,455 INFO L82 PathProgramCache]: Analyzing trace with hash 936592112, now seen corresponding path program 1 times [2020-10-23 20:15:08,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:15:08,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197369230] [2020-10-23 20:15:08,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:15:08,465 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:15:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,007 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:15:09,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:15:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:15:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:15:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:15:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:15:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:15:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:15:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:15:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:09,252 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 20:15:09,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197369230] [2020-10-23 20:15:09,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:15:09,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:15:09,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832449609] [2020-10-23 20:15:09,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:15:09,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:15:09,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:15:09,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:15:09,256 INFO L87 Difference]: Start difference. First operand 542 states and 610 transitions. Second operand 14 states. [2020-10-23 20:15:10,016 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:15:10,545 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:15:10,971 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:15:11,401 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:11,807 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:12,264 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:13,192 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:15:14,996 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:15,595 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:16,307 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:16,854 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:15:17,337 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:15:17,754 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:15:18,246 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:15:18,782 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:19,190 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:19,830 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:20,557 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:15:21,099 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:15:21,657 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:15:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:15:25,430 INFO L93 Difference]: Finished difference Result 1927 states and 2404 transitions. [2020-10-23 20:15:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:15:25,431 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:15:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:15:25,446 INFO L225 Difference]: With dead ends: 1927 [2020-10-23 20:15:25,446 INFO L226 Difference]: Without dead ends: 1500 [2020-10-23 20:15:25,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:15:25,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2020-10-23 20:15:26,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1357. [2020-10-23 20:15:26,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1357 states. [2020-10-23 20:15:26,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1611 transitions. [2020-10-23 20:15:26,273 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1611 transitions. Word has length 167 [2020-10-23 20:15:26,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:15:26,274 INFO L481 AbstractCegarLoop]: Abstraction has 1357 states and 1611 transitions. [2020-10-23 20:15:26,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:15:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1611 transitions. [2020-10-23 20:15:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:15:26,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:15:26,281 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] [2020-10-23 20:15:26,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:15:26,282 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 20:15:26,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:15:26,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1652891466, now seen corresponding path program 1 times [2020-10-23 20:15:26,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:15:26,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832080093] [2020-10-23 20:15:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:15:26,287 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:15:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,801 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:15:26,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:15:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:15:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:15:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:15:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:15:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:15:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:15:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:15:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:26,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:15:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:15:27,019 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 20:15:27,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832080093] [2020-10-23 20:15:27,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:15:27,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:15:27,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348202270] [2020-10-23 20:15:27,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:15:27,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:15:27,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:15:27,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:15:27,030 INFO L87 Difference]: Start difference. First operand 1357 states and 1611 transitions. Second operand 6 states. [2020-10-23 20:15:27,778 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:15:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:15:31,880 INFO L93 Difference]: Finished difference Result 3106 states and 3886 transitions. [2020-10-23 20:15:31,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:15:31,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:15:31,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:15:31,897 INFO L225 Difference]: With dead ends: 3106 [2020-10-23 20:15:31,897 INFO L226 Difference]: Without dead ends: 1864 [2020-10-23 20:15:31,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:15:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2020-10-23 20:15:32,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1740. [2020-10-23 20:15:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1740 states. [2020-10-23 20:15:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2034 transitions. [2020-10-23 20:15:32,823 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2034 transitions. Word has length 172 [2020-10-23 20:15:32,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:15:32,824 INFO L481 AbstractCegarLoop]: Abstraction has 1740 states and 2034 transitions. [2020-10-23 20:15:32,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:15:32,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2034 transitions. [2020-10-23 20:15:32,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:15:32,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:15:32,830 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 20:15:32,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:15:32,830 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 20:15:32,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:15:32,831 INFO L82 PathProgramCache]: Analyzing trace with hash -573513196, now seen corresponding path program 1 times [2020-10-23 20:15:32,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:15:32,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925354963] [2020-10-23 20:15:32,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:15:33,042 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:33,356 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:33,617 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:33,888 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:15:34,168 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:34,413 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:34,703 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:34,980 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:15:35,243 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:15:35,507 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:35,776 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:15:36,045 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:36,329 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:36,616 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:15:37,070 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:37,434 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:37,799 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:15:38,136 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:38,510 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:15:38,873 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:15:39,218 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:15:39,561 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:39,565 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:39,906 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:15:40,274 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:15:40,631 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:15:41,020 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:41,355 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:41,709 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:42,062 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:15:42,423 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:42,426 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:42,774 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:43,118 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:43,453 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:43,848 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:44,246 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:44,640 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:45,009 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:45,377 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:45,380 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:45,741 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:46,095 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:46,426 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:46,784 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:47,143 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:47,541 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:47,914 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:15:48,274 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:15:48,278 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:51,032 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:15:51,050 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:53,751 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:15:53,757 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:56,429 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:56,436 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:57,843 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:57,849 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:00,466 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:00,470 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:01,758 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:01,763 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:04,327 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:05,948 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:05,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:05,958 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:08,559 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:16:11,117 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:16:11,120 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:13,625 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:16:13,630 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:16,266 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:16:16,272 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:18,750 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:16:18,755 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:21,246 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:21,251 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:23,734 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:23,739 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:26,254 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:26,259 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:26,263 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:27,545 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:27,549 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:30,031 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:32,559 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:32,562 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:33,639 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:36,204 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:38,766 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:38,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:41,284 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:16:41,289 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:42,466 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:42,470 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:42,474 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:43,599 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:43,603 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:46,162 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:46,167 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:48,704 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:16:48,708 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:51,260 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:16:51,266 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:53,818 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:16:53,821 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:56,415 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:58,996 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:17:01,484 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:17:01,488 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:01,491 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:01,857 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:02,220 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:02,590 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:02,963 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:03,342 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:03,723 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:04,102 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:17:04,486 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:04,489 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:07,080 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:09,674 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:09,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:12,241 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:12,246 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:14,824 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:14,831 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:17,340 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:17,343 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:19,909 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:19,912 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:21,742 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:21,745 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:24,331 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:24,335 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:24,338 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:24,687 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:25,031 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:25,377 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:25,719 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:26,062 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:26,410 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:26,760 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:27,113 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:27,115 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:29,729 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:29,733 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:32,342 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:32,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:34,972 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:34,976 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:37,662 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:37,666 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:40,293 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:40,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:42,874 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:42,877 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:45,467 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:17:45,471 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:48,133 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:48,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:48,141 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:50,717 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:50,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:53,270 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:53,274 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:55,894 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:17:55,898 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:17:58,412 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:17:58,415 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:00,955 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:18:00,959 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:03,579 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:18:03,582 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:05,167 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:18:05,171 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:06,808 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:18:06,811 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:06,814 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:18:09,363 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:18:09,367 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:11,963 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:18:14,551 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:18:14,554 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:16,217 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:18:18,773 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:18:18,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:21,325 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:18:21,328 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:23,989 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:18:23,993 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:26,631 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:18:26,635 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:18:26,641 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:18:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:18:27,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:18:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:18:27,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:18:27,873 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:18:27,873 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:18:27,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:18:27,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:18:27 BoogieIcfgContainer [2020-10-23 20:18:27,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:18:27,917 INFO L168 Benchmark]: Toolchain (without parser) took 219259.17 ms. Allocated memory was 151.0 MB in the beginning and 901.8 MB in the end (delta: 750.8 MB). Free memory was 125.8 MB in the beginning and 363.9 MB in the end (delta: -238.1 MB). Peak memory consumption was 514.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:27,918 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.3 MB in the end (delta: 16.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:18:27,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.65 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 102.7 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:27,925 INFO L168 Benchmark]: Boogie Preprocessor took 190.74 ms. Allocated memory is still 151.0 MB. Free memory was 102.7 MB in the beginning and 130.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:27,925 INFO L168 Benchmark]: RCFGBuilder took 1799.05 ms. Allocated memory is still 151.0 MB. Free memory was 130.5 MB in the beginning and 72.9 MB in the end (delta: 57.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:27,926 INFO L168 Benchmark]: TraceAbstraction took 216424.89 ms. Allocated memory was 151.0 MB in the beginning and 901.8 MB in the end (delta: 750.8 MB). Free memory was 72.4 MB in the beginning and 363.9 MB in the end (delta: -291.5 MB). Peak memory consumption was 459.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:18:27,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.3 MB in the end (delta: 16.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 825.65 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 102.7 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 190.74 ms. Allocated memory is still 151.0 MB. Free memory was 102.7 MB in the beginning and 130.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1799.05 ms. Allocated memory is still 151.0 MB. Free memory was 130.5 MB in the beginning and 72.9 MB in the end (delta: 57.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 216424.89 ms. Allocated memory was 151.0 MB in the beginning and 901.8 MB in the end (delta: 750.8 MB). Free memory was 72.4 MB in the beginning and 363.9 MB in the end (delta: -291.5 MB). Peak memory consumption was 459.2 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; [L408] int cleanupTimeShifts = 4; [L581] int waterLevel = 1; [L582] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L494] FCALL select_helpers() [L495] FCALL select_features() [L496] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L496] RET, EXPR valid_product() [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L500] FCALL setup() [L501] CALL runTest() [L480] CALL test() [L952] int splverifierCounter ; [L953] int tmp ; [L954] int tmp___0 ; [L955] int tmp___1 ; [L956] int tmp___2 ; [L959] splverifierCounter = 0 [L961] COND TRUE 1 [L963] COND TRUE splverifierCounter < 4 [L969] tmp = __VERIFIER_nondet_int() [L971] COND TRUE \read(tmp) [L973] CALL waterRise() [L599] COND TRUE waterLevel < 2 [L600] waterLevel = waterLevel + 1 [L973] RET waterRise() [L979] tmp___0 = __VERIFIER_nondet_int() [L981] COND FALSE !(\read(tmp___0)) [L989] tmp___2 = __VERIFIER_nondet_int() [L991] COND FALSE !(\read(tmp___2)) [L995] tmp___1 = __VERIFIER_nondet_int() [L997] COND TRUE \read(tmp___1) [L999] CALL stopSystem() [L939] COND FALSE !(\read(pumpRunning)) [L946] systemActive = 0 [L999] RET stopSystem() [L1006] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND FALSE !(\read(systemActive)) [L718] CALL __utac_acc__Specification4_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L556] CALL, EXPR getWaterLevel() [L652] int retValue_acc ; [L655] retValue_acc = waterLevel [L656] return (retValue_acc); [L556] RET, EXPR getWaterLevel() [L556] tmp = getWaterLevel() [L558] COND FALSE !(tmp == 0) [L718] RET __utac_acc__Specification4_spec__1() [L1006] RET timeShift() [L961] COND TRUE 1 [L963] COND TRUE splverifierCounter < 4 [L969] tmp = __VERIFIER_nondet_int() [L971] COND TRUE \read(tmp) [L973] CALL waterRise() [L599] COND TRUE waterLevel < 2 [L600] waterLevel = waterLevel + 1 [L973] RET waterRise() [L979] tmp___0 = __VERIFIER_nondet_int() [L981] COND FALSE !(\read(tmp___0)) [L989] tmp___2 = __VERIFIER_nondet_int() [L991] COND TRUE \read(tmp___2) [L1006] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND FALSE !(\read(systemActive)) [L718] CALL __utac_acc__Specification4_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L556] CALL, EXPR getWaterLevel() [L652] int retValue_acc ; [L655] retValue_acc = waterLevel [L656] return (retValue_acc); [L556] RET, EXPR getWaterLevel() [L556] tmp = getWaterLevel() [L558] COND TRUE tmp == 0 [L560] CALL, EXPR isPumpRunning() [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); [L560] RET, EXPR isPumpRunning() [L560] tmp___0 = isPumpRunning() [L562] COND TRUE \read(tmp___0) [L564] CALL __automaton_fail() [L688] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product63.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 677 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 216.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1439 SDtfs, 2513 SDslu, 2266 SDs, 0 SdLazy, 6035 SolverSat, 850 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1740occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 431 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...