/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:12:54,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:12:54,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:12:54,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:12:54,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:12:54,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:12:54,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:12:54,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:12:54,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:12:54,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:12:54,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:12:54,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:12:54,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:12:54,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:12:54,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:12:54,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:12:54,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:12:54,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:12:54,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:12:54,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:12:54,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:12:54,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:12:54,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:12:54,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:12:54,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 04:12:54,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 04:12:54,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 04:12:54,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 04:12:54,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 04:12:54,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 04:12:54,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:12:54,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:12:54,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:12:54,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:12:54,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:12:54,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:12:54,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:12:54,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:12:54,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:12:54,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:12:54,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:12:54,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:12:54,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:12:54,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:12:54,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:12:54,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:12:54,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:12:54,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:12:54,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:12:54,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:12:54,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:12:54,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:12:54,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:12:54,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:12:54,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:12:54,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:12:54,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:12:54,448 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:12:54,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:12:54,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:12:54,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:12:54,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:12:54,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:12:54,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:12:54,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:12:54,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:12:54,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:12:54,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:12:54,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:12:54,898 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:12:54,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-11-07 04:12:54,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9de7465/84efe51eafde4b1b98aa4e06a55d74c4/FLAGbd8b0590b [2020-11-07 04:12:55,693 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:12:55,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-11-07 04:12:55,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9de7465/84efe51eafde4b1b98aa4e06a55d74c4/FLAGbd8b0590b [2020-11-07 04:12:56,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9de7465/84efe51eafde4b1b98aa4e06a55d74c4 [2020-11-07 04:12:56,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:12:56,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:12:56,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:12:56,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:12:56,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:12:56,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1ddb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56, skipping insertion in model container [2020-11-07 04:12:56,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:12:56,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:12:56,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:12:56,523 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:12:56,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:12:56,693 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:12:56,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56 WrapperNode [2020-11-07 04:12:56,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:12:56,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:12:56,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:12:56,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:12:56,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (1/1) ... [2020-11-07 04:12:56,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:12:56,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:12:56,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:12:56,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:12:56,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (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 [2020-11-07 04:12:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:12:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:12:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 04:12:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:12:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 04:12:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 04:12:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 04:12:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 04:12:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:12:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 04:12:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 04:12:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 04:12:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 04:12:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 04:12:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 04:12:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 04:12:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 04:12:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 04:12:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 04:12:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 04:12:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 04:12:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 04:12:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 04:12:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 04:12:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 04:12:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 04:12:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 04:12:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 04:12:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 04:12:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 04:12:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 04:12:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 04:12:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 04:12:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 04:12:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 04:12:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 04:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 04:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 04:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 04:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 04:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 04:12:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 04:12:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 04:12:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:12:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:12:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:12:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:12:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:12:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 04:12:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 04:12:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 04:12:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 04:12:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 04:12:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 04:12:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 04:12:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 04:12:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 04:12:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 04:12:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 04:12:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 04:12:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 04:12:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:12:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 04:12:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 04:12:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 04:12:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 04:12:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 04:12:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 04:12:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 04:12:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 04:12:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 04:12:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 04:12:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:12:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 04:12:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 04:12:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 04:12:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 04:12:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 04:12:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 04:12:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 04:12:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 04:12:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 04:12:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 04:12:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 04:12:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 04:12:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 04:12:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 04:12:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 04:12:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:12:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 04:12:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 04:12:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:12:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 04:12:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 04:12:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:12:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 04:12:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 04:12:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 04:12:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:12:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:12:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:12:58,408 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:12:58,409 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 04:12:58,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:58 BoogieIcfgContainer [2020-11-07 04:12:58,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:12:58,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:12:58,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:12:58,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:12:58,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:12:56" (1/3) ... [2020-11-07 04:12:58,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475f0c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:58, skipping insertion in model container [2020-11-07 04:12:58,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:56" (2/3) ... [2020-11-07 04:12:58,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475f0c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:58, skipping insertion in model container [2020-11-07 04:12:58,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:58" (3/3) ... [2020-11-07 04:12:58,422 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-11-07 04:12:58,440 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:12:58,444 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 04:12:58,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 04:12:58,484 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:12:58,485 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:12:58,485 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:12:58,485 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:12:58,485 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:12:58,485 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:12:58,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:12:58,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:12:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states. [2020-11-07 04:12:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 04:12:58,536 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:12:58,538 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] [2020-11-07 04:12:58,538 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]=== [2020-11-07 04:12:58,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:12:58,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1383843617, now seen corresponding path program 1 times [2020-11-07 04:12:58,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:12:58,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039925657] [2020-11-07 04:12:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:12:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,367 WARN L194 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:12:59,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:12:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:12:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:12:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:12:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:12:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:12:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:12:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:12:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:12:59,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039925657] [2020-11-07 04:12:59,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:12:59,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 04:12:59,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610037429] [2020-11-07 04:12:59,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 04:12:59,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:12:59,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 04:12:59,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 04:12:59,634 INFO L87 Difference]: Start difference. First operand 367 states. Second operand 3 states. [2020-11-07 04:13:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:13:01,847 INFO L93 Difference]: Finished difference Result 597 states and 711 transitions. [2020-11-07 04:13:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 04:13:01,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 04:13:01,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:13:01,869 INFO L225 Difference]: With dead ends: 597 [2020-11-07 04:13:01,869 INFO L226 Difference]: Without dead ends: 360 [2020-11-07 04:13:01,875 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 [2020-11-07 04:13:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-07 04:13:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 313. [2020-11-07 04:13:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-11-07 04:13:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 345 transitions. [2020-11-07 04:13:02,069 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 345 transitions. Word has length 159 [2020-11-07 04:13:02,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:13:02,071 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 345 transitions. [2020-11-07 04:13:02,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 04:13:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 345 transitions. [2020-11-07 04:13:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 04:13:02,076 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:13:02,076 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] [2020-11-07 04:13:02,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:13:02,077 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]=== [2020-11-07 04:13:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:13:02,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1550209003, now seen corresponding path program 1 times [2020-11-07 04:13:02,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:13:02,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461151333] [2020-11-07 04:13:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:13:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,567 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:13:02,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:13:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:13:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:13:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:13:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:13:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 04:13:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:13:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 04:13:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:13:02,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461151333] [2020-11-07 04:13:02,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:13:02,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:13:02,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468163526] [2020-11-07 04:13:02,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:13:02,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:13:02,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:13:02,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:13:02,687 INFO L87 Difference]: Start difference. First operand 313 states and 345 transitions. Second operand 4 states. [2020-11-07 04:13:03,639 WARN L194 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:13:05,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:13:05,327 INFO L93 Difference]: Finished difference Result 505 states and 574 transitions. [2020-11-07 04:13:05,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 04:13:05,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 04:13:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:13:05,333 INFO L225 Difference]: With dead ends: 505 [2020-11-07 04:13:05,334 INFO L226 Difference]: Without dead ends: 343 [2020-11-07 04:13:05,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 04:13:05,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-11-07 04:13:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 303. [2020-11-07 04:13:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-11-07 04:13:05,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 332 transitions. [2020-11-07 04:13:05,472 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 332 transitions. Word has length 160 [2020-11-07 04:13:05,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:13:05,473 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 332 transitions. [2020-11-07 04:13:05,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:13:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 332 transitions. [2020-11-07 04:13:05,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 04:13:05,476 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:13:05,476 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] [2020-11-07 04:13:05,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:13:05,477 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]=== [2020-11-07 04:13:05,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:13:05,477 INFO L82 PathProgramCache]: Analyzing trace with hash 341651726, now seen corresponding path program 1 times [2020-11-07 04:13:05,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:13:05,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338639848] [2020-11-07 04:13:05,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:13:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:05,956 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:13:05,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:13:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:13:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:13:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:13:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:13:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:13:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:13:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 04:13:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:13:06,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338639848] [2020-11-07 04:13:06,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:13:06,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:13:06,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103588747] [2020-11-07 04:13:06,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:13:06,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:13:06,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:13:06,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:13:06,216 INFO L87 Difference]: Start difference. First operand 303 states and 332 transitions. Second operand 9 states. [2020-11-07 04:13:06,985 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:13:07,447 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:13:07,881 WARN L194 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:13:08,308 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:08,706 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:13:09,167 WARN L194 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:10,417 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:13:14,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:13:14,215 INFO L93 Difference]: Finished difference Result 830 states and 960 transitions. [2020-11-07 04:13:14,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 04:13:14,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 04:13:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:13:14,234 INFO L225 Difference]: With dead ends: 830 [2020-11-07 04:13:14,235 INFO L226 Difference]: Without dead ends: 642 [2020-11-07 04:13:14,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:13:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-11-07 04:13:14,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 565. [2020-11-07 04:13:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-11-07 04:13:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 638 transitions. [2020-11-07 04:13:14,538 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 638 transitions. Word has length 169 [2020-11-07 04:13:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:13:14,539 INFO L481 AbstractCegarLoop]: Abstraction has 565 states and 638 transitions. [2020-11-07 04:13:14,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:13:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 638 transitions. [2020-11-07 04:13:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 04:13:14,543 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:13:14,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:13:14,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:13:14,544 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]=== [2020-11-07 04:13:14,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:13:14,545 INFO L82 PathProgramCache]: Analyzing trace with hash -2030091801, now seen corresponding path program 1 times [2020-11-07 04:13:14,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:13:14,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083354362] [2020-11-07 04:13:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:13:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,005 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:13:15,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:13:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:13:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:13:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:13:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:13:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 04:13:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 04:13:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 04:13:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 04:13:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:13:15,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083354362] [2020-11-07 04:13:15,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:13:15,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:13:15,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818609728] [2020-11-07 04:13:15,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:13:15,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:13:15,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:13:15,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:13:15,218 INFO L87 Difference]: Start difference. First operand 565 states and 638 transitions. Second operand 9 states. [2020-11-07 04:13:15,932 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:13:18,788 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:19,282 WARN L194 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:13:19,798 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:20,281 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:13:20,680 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:13:21,156 WARN L194 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:21,576 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:13:23,252 INFO L93 Difference]: Finished difference Result 1559 states and 1880 transitions. [2020-11-07 04:13:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 04:13:23,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 04:13:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:13:23,261 INFO L225 Difference]: With dead ends: 1559 [2020-11-07 04:13:23,261 INFO L226 Difference]: Without dead ends: 1109 [2020-11-07 04:13:23,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 04:13:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-11-07 04:13:23,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1001. [2020-11-07 04:13:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2020-11-07 04:13:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1157 transitions. [2020-11-07 04:13:23,729 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1157 transitions. Word has length 178 [2020-11-07 04:13:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:13:23,730 INFO L481 AbstractCegarLoop]: Abstraction has 1001 states and 1157 transitions. [2020-11-07 04:13:23,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:13:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1157 transitions. [2020-11-07 04:13:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 04:13:23,736 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:13:23,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:13:23,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:13:23,737 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]=== [2020-11-07 04:13:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:13:23,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1768416710, now seen corresponding path program 1 times [2020-11-07 04:13:23,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:13:23,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258556226] [2020-11-07 04:13:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:13:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:13:23,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:13:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:13:23,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:13:24,193 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:13:24,193 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:13:24,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 04:13:24,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:13:24 BoogieIcfgContainer [2020-11-07 04:13:24,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:13:24,451 INFO L168 Benchmark]: Toolchain (without parser) took 28427.15 ms. Allocated memory was 157.3 MB in the beginning and 546.3 MB in the end (delta: 389.0 MB). Free memory was 132.5 MB in the beginning and 283.9 MB in the end (delta: -151.4 MB). Peak memory consumption was 238.9 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:24,452 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:13:24,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.40 ms. Allocated memory is still 157.3 MB. Free memory was 131.7 MB in the beginning and 109.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:24,453 INFO L168 Benchmark]: Boogie Preprocessor took 93.55 ms. Allocated memory is still 157.3 MB. Free memory was 109.7 MB in the beginning and 105.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:24,454 INFO L168 Benchmark]: RCFGBuilder took 1622.00 ms. Allocated memory was 157.3 MB in the beginning and 209.7 MB in the end (delta: 52.4 MB). Free memory was 105.6 MB in the beginning and 176.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:24,455 INFO L168 Benchmark]: TraceAbstraction took 26034.86 ms. Allocated memory was 209.7 MB in the beginning and 546.3 MB in the end (delta: 336.6 MB). Free memory was 175.6 MB in the beginning and 283.9 MB in the end (delta: -108.2 MB). Peak memory consumption was 228.4 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:24,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 658.40 ms. Allocated memory is still 157.3 MB. Free memory was 131.7 MB in the beginning and 109.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.55 ms. Allocated memory is still 157.3 MB. Free memory was 109.7 MB in the beginning and 105.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1622.00 ms. Allocated memory was 157.3 MB in the beginning and 209.7 MB in the end (delta: 52.4 MB). Free memory was 105.6 MB in the beginning and 176.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26034.86 ms. Allocated memory was 209.7 MB in the beginning and 546.3 MB in the end (delta: 336.6 MB). Free memory was 175.6 MB in the beginning and 283.9 MB in the end (delta: -108.2 MB). Peak memory consumption was 228.4 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; 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={182:172}, methaneLevelCritical=152, pumpRunning=143, systemActive=142, waterLevel=146] [L190] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=152, \old(pumpRunning)=143, \old(systemActive)=142, \old(waterLevel)=146, cleanupTimeShifts=4, head={182:172}, methaneLevelCritical=152, pumpRunning=0, systemActive=142, waterLevel=146] [L191] int systemActive = 1; 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={182:172}, methaneLevelCritical=152, pumpRunning=0, systemActive=1, waterLevel=146] [L514] int waterLevel = 1; 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={182:172}, methaneLevelCritical=152, pumpRunning=0, systemActive=1, waterLevel=1] [L515] int methaneLevelCritical = 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={182:172}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L829] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \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 ; 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] [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 ; 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] [L175] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=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() 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, valid_product()=1, waterLevel=1] [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 ; 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] [L448] 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] [L449] int tmp___0 ; 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] [L450] int tmp___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=1] [L451] int tmp___2 ; 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] [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() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [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 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] [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() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [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() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L486] COND FALSE !(\read(tmp___2)) 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___2=0, waterLevel=2] [L490] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=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] [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 ; 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] [L628] int tmp___0 ; 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] [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 ; 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] [L556] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [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() 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, tmp=0, waterLevel=2] [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 ; 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] [L588] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [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() 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, tmp___0=2, waterLevel=2] [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 ; 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] [L351] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [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() 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, tmp___1=0, waterLevel=2] [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, 683 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1196 SDtfs, 1765 SDslu, 1373 SDs, 0 SdLazy, 3911 SolverSat, 613 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1001occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 272 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 849 NumberOfCodeBlocks, 849 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 286330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...