/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:42:17,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:42:17,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:42:17,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:42:17,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:42:17,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:42:17,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:42:17,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:42:17,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:42:17,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:42:17,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:42:17,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:42:17,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:42:17,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:42:17,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:42:17,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:42:17,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:42:17,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:42:17,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:42:17,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:42:17,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:42:17,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:42:17,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:42:17,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:42:17,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 21:42:17,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 21:42:17,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 21:42:17,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 21:42:17,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 21:42:17,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 21:42:17,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 21:42:17,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 21:42:17,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 21:42:17,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 21:42:17,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 21:42:17,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 21:42:17,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 21:42:17,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 21:42:17,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:42:17,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:42:17,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:42:17,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 21:42:17,549 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:42:17,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:42:17,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:42:17,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:42:17,552 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:42:17,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:42:17,552 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:42:17,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:42:17,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:42:17,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:42:17,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:42:17,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:42:17,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:42:17,553 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:42:17,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:42:17,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:42:17,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:42:17,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:42:17,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:42:17,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:42:17,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:42:17,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:42:17,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:42:17,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:42:17,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:42:17,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:42:17,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:42:17,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:42:17,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:42:17,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:42:17,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:42:18,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:42:18,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:42:18,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:42:18,019 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:42:18,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-11-06 21:42:18,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df59fa697/4770a0d5875740a09ecca510518d2da2/FLAGb34f7e689 [2020-11-06 21:42:18,813 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:42:18,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-11-06 21:42:18,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df59fa697/4770a0d5875740a09ecca510518d2da2/FLAGb34f7e689 [2020-11-06 21:42:19,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df59fa697/4770a0d5875740a09ecca510518d2da2 [2020-11-06 21:42:19,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:42:19,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:42:19,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:42:19,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:42:19,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:42:19,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b218828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19, skipping insertion in model container [2020-11-06 21:42:19,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:42:19,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:42:19,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:42:19,521 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:42:19,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:42:19,648 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:42:19,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19 WrapperNode [2020-11-06 21:42:19,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:42:19,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:42:19,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:42:19,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:42:19,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (1/1) ... [2020-11-06 21:42:19,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:42:19,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:42:19,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:42:19,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:42:19,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (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 [2020-11-06 21:42:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:42:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:42:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 21:42:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:42:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 21:42:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 21:42:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 21:42:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 21:42:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:42:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 21:42:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 21:42:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 21:42:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 21:42:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 21:42:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 21:42:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 21:42:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-06 21:42:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 21:42:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-06 21:42:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 21:42:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 21:42:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 21:42:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 21:42:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 21:42:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 21:42:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-06 21:42:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 21:42:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 21:42:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 21:42:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 21:42:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 21:42:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 21:42:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 21:42:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 21:42:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 21:42:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-06 21:42:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 21:42:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-06 21:42:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 21:42:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 21:42:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 21:42:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 21:42:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 21:42:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 21:42:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:42:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:42:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:42:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:42:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 21:42:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 21:42:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 21:42:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 21:42:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 21:42:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 21:42:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 21:42:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 21:42:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 21:42:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 21:42:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 21:42:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 21:42:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 21:42:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 21:42:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:42:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 21:42:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 21:42:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 21:42:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 21:42:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 21:42:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-06 21:42:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 21:42:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 21:42:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 21:42:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 21:42:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-06 21:42:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 21:42:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 21:42:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 21:42:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 21:42:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-06 21:42:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-06 21:42:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 21:42:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-06 21:42:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 21:42:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 21:42:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 21:42:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 21:42:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 21:42:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 21:42:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 21:42:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:42:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 21:42:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 21:42:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:42:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 21:42:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 21:42:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:42:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 21:42:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 21:42:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 21:42:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:42:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:42:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:42:21,092 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:42:21,093 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 21:42:21,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:42:21 BoogieIcfgContainer [2020-11-06 21:42:21,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:42:21,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:42:21,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:42:21,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:42:21,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:42:19" (1/3) ... [2020-11-06 21:42:21,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640983c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:42:21, skipping insertion in model container [2020-11-06 21:42:21,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:42:19" (2/3) ... [2020-11-06 21:42:21,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640983c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:42:21, skipping insertion in model container [2020-11-06 21:42:21,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:42:21" (3/3) ... [2020-11-06 21:42:21,103 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-11-06 21:42:21,118 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:42:21,122 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 21:42:21,134 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 21:42:21,160 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:42:21,161 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:42:21,161 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:42:21,161 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:42:21,161 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:42:21,161 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:42:21,161 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:42:21,161 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:42:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states. [2020-11-06 21:42:21,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-06 21:42:21,195 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:42:21,196 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] [2020-11-06 21:42:21,196 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]=== [2020-11-06 21:42:21,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:42:21,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1085252040, now seen corresponding path program 1 times [2020-11-06 21:42:21,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:42:21,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913515772] [2020-11-06 21:42:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:42:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:21,931 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 21:42:21,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:42:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:42:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 21:42:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:42:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-06 21:42:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 21:42:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-06 21:42:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-11-06 21:42:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:42:22,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913515772] [2020-11-06 21:42:22,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:42:22,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 21:42:22,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158028285] [2020-11-06 21:42:22,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 21:42:22,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:42:22,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 21:42:22,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 21:42:22,098 INFO L87 Difference]: Start difference. First operand 209 states. Second operand 3 states. [2020-11-06 21:42:23,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:42:23,785 INFO L93 Difference]: Finished difference Result 376 states and 490 transitions. [2020-11-06 21:42:23,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 21:42:23,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-11-06 21:42:23,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:42:23,802 INFO L225 Difference]: With dead ends: 376 [2020-11-06 21:42:23,802 INFO L226 Difference]: Without dead ends: 201 [2020-11-06 21:42:23,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 21:42:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-11-06 21:42:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 163. [2020-11-06 21:42:23,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-06 21:42:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2020-11-06 21:42:23,995 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 53 [2020-11-06 21:42:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:42:23,996 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2020-11-06 21:42:23,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 21:42:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2020-11-06 21:42:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-06 21:42:24,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:42:24,008 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] [2020-11-06 21:42:24,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:42:24,010 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]=== [2020-11-06 21:42:24,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:42:24,011 INFO L82 PathProgramCache]: Analyzing trace with hash -258411188, now seen corresponding path program 1 times [2020-11-06 21:42:24,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:42:24,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971132900] [2020-11-06 21:42:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:42:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,508 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 21:42:24,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:42:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:42:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 21:42:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:42:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-06 21:42:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-11-06 21:42:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-11-06 21:42:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-11-06 21:42:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:42:24,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971132900] [2020-11-06 21:42:24,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:42:24,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 21:42:24,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769345972] [2020-11-06 21:42:24,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 21:42:24,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:42:24,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 21:42:24,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 21:42:24,556 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand 4 states. [2020-11-06 21:42:25,251 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 21:42:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:42:26,607 INFO L93 Difference]: Finished difference Result 300 states and 369 transitions. [2020-11-06 21:42:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 21:42:26,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-11-06 21:42:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:42:26,617 INFO L225 Difference]: With dead ends: 300 [2020-11-06 21:42:26,617 INFO L226 Difference]: Without dead ends: 185 [2020-11-06 21:42:26,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 21:42:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-06 21:42:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 154. [2020-11-06 21:42:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-06 21:42:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2020-11-06 21:42:26,701 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 54 [2020-11-06 21:42:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:42:26,702 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2020-11-06 21:42:26,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 21:42:26,702 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2020-11-06 21:42:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-06 21:42:26,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:42:26,709 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] [2020-11-06 21:42:26,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 21:42:26,709 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]=== [2020-11-06 21:42:26,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:42:26,710 INFO L82 PathProgramCache]: Analyzing trace with hash 227972200, now seen corresponding path program 1 times [2020-11-06 21:42:26,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:42:26,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693373437] [2020-11-06 21:42:26,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:42:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,222 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 21:42:27,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:42:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:42:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 21:42:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:42:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-06 21:42:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 21:42:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-11-06 21:42:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-11-06 21:42:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:42:27,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693373437] [2020-11-06 21:42:27,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:42:27,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 21:42:27,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044774717] [2020-11-06 21:42:27,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 21:42:27,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:42:27,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 21:42:27,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-06 21:42:27,379 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 8 states. [2020-11-06 21:42:27,910 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 21:42:28,360 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 21:42:28,782 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 21:42:29,146 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 21:42:30,077 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 21:42:33,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:42:33,079 INFO L93 Difference]: Finished difference Result 529 states and 659 transitions. [2020-11-06 21:42:33,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 21:42:33,080 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-11-06 21:42:33,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:42:33,085 INFO L225 Difference]: With dead ends: 529 [2020-11-06 21:42:33,086 INFO L226 Difference]: Without dead ends: 399 [2020-11-06 21:42:33,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-06 21:42:33,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-11-06 21:42:33,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 331. [2020-11-06 21:42:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-11-06 21:42:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 404 transitions. [2020-11-06 21:42:33,201 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 404 transitions. Word has length 58 [2020-11-06 21:42:33,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:42:33,201 INFO L481 AbstractCegarLoop]: Abstraction has 331 states and 404 transitions. [2020-11-06 21:42:33,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 21:42:33,202 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 404 transitions. [2020-11-06 21:42:33,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-06 21:42:33,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:42:33,203 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] [2020-11-06 21:42:33,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 21:42:33,204 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]=== [2020-11-06 21:42:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:42:33,204 INFO L82 PathProgramCache]: Analyzing trace with hash 549731654, now seen corresponding path program 1 times [2020-11-06 21:42:33,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:42:33,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048905193] [2020-11-06 21:42:33,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:42:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,601 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 21:42:33,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:42:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:42:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 21:42:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:42:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-06 21:42:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-11-06 21:42:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-11-06 21:42:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-11-06 21:42:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 21:42:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:42:33,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048905193] [2020-11-06 21:42:33,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:42:33,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 21:42:33,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327249367] [2020-11-06 21:42:33,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 21:42:33,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:42:33,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 21:42:33,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-06 21:42:33,698 INFO L87 Difference]: Start difference. First operand 331 states and 404 transitions. Second operand 8 states. [2020-11-06 21:42:34,197 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 21:42:36,053 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 21:42:36,598 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 21:42:37,019 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 21:42:37,445 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 21:42:38,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:42:38,758 INFO L93 Difference]: Finished difference Result 1028 states and 1349 transitions. [2020-11-06 21:42:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 21:42:38,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-11-06 21:42:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:42:38,765 INFO L225 Difference]: With dead ends: 1028 [2020-11-06 21:42:38,765 INFO L226 Difference]: Without dead ends: 721 [2020-11-06 21:42:38,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-06 21:42:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-11-06 21:42:38,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 646. [2020-11-06 21:42:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-11-06 21:42:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 802 transitions. [2020-11-06 21:42:38,956 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 802 transitions. Word has length 64 [2020-11-06 21:42:38,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:42:38,957 INFO L481 AbstractCegarLoop]: Abstraction has 646 states and 802 transitions. [2020-11-06 21:42:38,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 21:42:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 802 transitions. [2020-11-06 21:42:38,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-06 21:42:38,961 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:42:38,961 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] [2020-11-06 21:42:38,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 21:42:38,962 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]=== [2020-11-06 21:42:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:42:38,963 INFO L82 PathProgramCache]: Analyzing trace with hash 520510048, now seen corresponding path program 1 times [2020-11-06 21:42:38,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:42:38,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137032299] [2020-11-06 21:42:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:42:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,346 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 21:42:39,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:42:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:42:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 21:42:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:42:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-06 21:42:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-11-06 21:42:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-11-06 21:42:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-11-06 21:42:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-11-06 21:42:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-11-06 21:42:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:42:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:42:39,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137032299] [2020-11-06 21:42:39,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:42:39,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 21:42:39,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876564827] [2020-11-06 21:42:39,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 21:42:39,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:42:39,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 21:42:39,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-06 21:42:39,473 INFO L87 Difference]: Start difference. First operand 646 states and 802 transitions. Second operand 6 states. [2020-11-06 21:42:39,941 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 21:42:42,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:42:42,498 INFO L93 Difference]: Finished difference Result 1515 states and 1975 transitions. [2020-11-06 21:42:42,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 21:42:42,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-11-06 21:42:42,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:42:42,505 INFO L225 Difference]: With dead ends: 1515 [2020-11-06 21:42:42,505 INFO L226 Difference]: Without dead ends: 893 [2020-11-06 21:42:42,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-06 21:42:42,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-11-06 21:42:42,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 822. [2020-11-06 21:42:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2020-11-06 21:42:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 997 transitions. [2020-11-06 21:42:42,719 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 997 transitions. Word has length 68 [2020-11-06 21:42:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:42:42,720 INFO L481 AbstractCegarLoop]: Abstraction has 822 states and 997 transitions. [2020-11-06 21:42:42,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 21:42:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 997 transitions. [2020-11-06 21:42:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-06 21:42:42,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:42:42,722 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] [2020-11-06 21:42:42,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 21:42:42,722 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]=== [2020-11-06 21:42:42,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:42:42,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2101557664, now seen corresponding path program 1 times [2020-11-06 21:42:42,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:42:42,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271171097] [2020-11-06 21:42:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:42:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:42:42,790 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:42:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:42:42,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:42:42,926 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 21:42:42,927 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 21:42:42,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 21:42:43,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:42:43 BoogieIcfgContainer [2020-11-06 21:42:43,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:42:43,114 INFO L168 Benchmark]: Toolchain (without parser) took 24038.13 ms. Allocated memory was 125.8 MB in the beginning and 390.1 MB in the end (delta: 264.2 MB). Free memory was 99.8 MB in the beginning and 249.5 MB in the end (delta: -149.7 MB). Peak memory consumption was 115.6 MB. Max. memory is 8.0 GB. [2020-11-06 21:42:43,116 INFO L168 Benchmark]: CDTParser took 1.35 ms. Allocated memory is still 125.8 MB. Free memory is still 90.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:42:43,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.87 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 76.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:42:43,118 INFO L168 Benchmark]: Boogie Preprocessor took 151.54 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 76.3 MB in the beginning and 135.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 4.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:42:43,119 INFO L168 Benchmark]: RCFGBuilder took 1292.66 ms. Allocated memory is still 156.2 MB. Free memory was 135.8 MB in the beginning and 91.6 MB in the end (delta: 44.2 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. [2020-11-06 21:42:43,119 INFO L168 Benchmark]: TraceAbstraction took 22015.31 ms. Allocated memory was 156.2 MB in the beginning and 390.1 MB in the end (delta: 233.8 MB). Free memory was 91.0 MB in the beginning and 249.5 MB in the end (delta: -158.5 MB). Peak memory consumption was 75.3 MB. Max. memory is 8.0 GB. [2020-11-06 21:42:43,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35 ms. Allocated memory is still 125.8 MB. Free memory is still 90.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 566.87 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 76.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.54 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 76.3 MB in the beginning and 135.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 4.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1292.66 ms. Allocated memory is still 156.2 MB. Free memory was 135.8 MB in the beginning and 91.6 MB in the end (delta: 44.2 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22015.31 ms. Allocated memory was 156.2 MB in the beginning and 390.1 MB in the end (delta: 233.8 MB). Free memory was 91.0 MB in the beginning and 249.5 MB in the end (delta: -158.5 MB). Peak memory consumption was 75.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L514] int waterLevel = 1; [L515] int methaneLevelCritical = 0; [L829] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=143, \old(systemActive)=142, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L129] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L130] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L134] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L135] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L114] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] int splverifierCounter ; [L448] int tmp ; [L449] int tmp___0 ; [L450] int tmp___1 ; [L451] int tmp___2 ; [L454] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L456] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L458] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L464] tmp = __VERIFIER_nondet_int() [L466] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L468] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] COND TRUE waterLevel < 2 [L533] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L468] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L474] tmp___0 = __VERIFIER_nondet_int() [L476] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L484] tmp___2 = __VERIFIER_nondet_int() [L486] COND FALSE !(\read(tmp___2)) [L490] tmp___1 = __VERIFIER_nondet_int() [L492] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L494] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L494] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L501] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L198] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L205] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L213] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L627] int tmp ; [L628] int tmp___0 ; [L629] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L633] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L553] int retValue_acc ; [L556] retValue_acc = methaneLevelCritical [L557] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L633] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L633] tmp = isMethaneLevelCritical() [L635] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L639] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L585] int retValue_acc ; [L588] retValue_acc = waterLevel [L589] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L639] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L639] tmp___0 = getWaterLevel() [L641] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L643] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L643] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L643] tmp___1 = isPumpRunning() [L645] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L649] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product63.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 273 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 746 SDtfs, 1498 SDslu, 443 SDs, 0 SdLazy, 2724 SolverSat, 968 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=822occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 283 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 89145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...