/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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:10:46,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:10:46,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:10:46,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:10:46,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:10:46,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:10:46,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:10:46,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:10:46,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:10:46,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:10:46,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:10:46,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:10:46,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:10:46,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:10:46,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:10:46,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:10:46,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:10:46,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:10:46,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:10:46,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:10:46,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:10:46,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:10:46,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:10:46,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:10:46,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 04:10:46,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 04:10:46,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 04:10:46,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 04:10:46,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 04:10:46,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 04:10:46,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:10:46,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:10:46,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:10:46,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:10:46,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:10:46,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:10:46,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:10:46,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:10:46,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:10:46,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:10:46,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:10:46,778 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 04:10:46,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:10:46,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:10:46,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:10:46,797 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:10:46,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:10:46,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:10:46,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:10:46,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:10:46,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:10:46,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:10:46,799 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:10:46,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:10:46,799 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:10:46,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:10:46,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:10:46,800 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:10:46,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:10:46,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:10:46,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:10:46,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:10:46,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:10:46,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:10:46,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:10:47,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:10:47,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:10:47,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:10:47,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:10:47,249 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:10:47,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-11-07 04:10:47,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e72afe20d/a2d79625431944e2b1ac8e44c844f558/FLAG6463736c4 [2020-11-07 04:10:47,991 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:10:47,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-11-07 04:10:48,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e72afe20d/a2d79625431944e2b1ac8e44c844f558/FLAG6463736c4 [2020-11-07 04:10:48,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e72afe20d/a2d79625431944e2b1ac8e44c844f558 [2020-11-07 04:10:48,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:10:48,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:10:48,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:10:48,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:10:48,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:10:48,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e75803a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48, skipping insertion in model container [2020-11-07 04:10:48,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:10:48,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:10:48,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:10:48,735 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:10:48,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:10:48,868 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:10:48,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48 WrapperNode [2020-11-07 04:10:48,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:10:48,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:10:48,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:10:48,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:10:48,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (1/1) ... [2020-11-07 04:10:48,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:10:48,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:10:48,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:10:48,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:10:48,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (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 04:10:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:10:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:10:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 04:10:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:10:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 04:10:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 04:10:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 04:10:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 04:10:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 04:10:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 04:10:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 04:10:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:10:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 04:10:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 04:10:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 04:10:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 04:10:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 04:10:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 04:10:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 04:10:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 04:10:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 04:10:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 04:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 04:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 04:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 04:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 04:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 04:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 04:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:10:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 04:10:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 04:10:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 04:10:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 04:10:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 04:10:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 04:10:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 04:10:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 04:10:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 04:10:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 04:10:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 04:10:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:10:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:10:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:10:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:10:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:10:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 04:10:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 04:10:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 04:10:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 04:10:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 04:10:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 04:10:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 04:10:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 04:10:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 04:10:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 04:10:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 04:10:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 04:10:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 04:10:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 04:10:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 04:10:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 04:10:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 04:10:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 04:10:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 04:10:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 04:10:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 04:10:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 04:10:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:10:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 04:10:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 04:10:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 04:10:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 04:10:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 04:10:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:10:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 04:10:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 04:10:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:10:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 04:10:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 04:10:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:10:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 04:10:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 04:10:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 04:10:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 04:10:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:10:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:10:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:10:50,369 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:10:50,370 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 04:10:50,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:10:50 BoogieIcfgContainer [2020-11-07 04:10:50,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:10:50,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:10:50,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:10:50,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:10:50,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:10:48" (1/3) ... [2020-11-07 04:10:50,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b434c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:10:50, skipping insertion in model container [2020-11-07 04:10:50,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:48" (2/3) ... [2020-11-07 04:10:50,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b434c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:10:50, skipping insertion in model container [2020-11-07 04:10:50,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:10:50" (3/3) ... [2020-11-07 04:10:50,381 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-11-07 04:10:50,396 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:10:50,400 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 04:10:50,412 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 04:10:50,435 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:10:50,435 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:10:50,435 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:10:50,435 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:10:50,436 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:10:50,436 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:10:50,436 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:10:50,436 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:10:50,458 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2020-11-07 04:10:50,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 04:10:50,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:50,479 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 04:10:50,480 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 04:10:50,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:50,486 INFO L82 PathProgramCache]: Analyzing trace with hash 886937434, now seen corresponding path program 1 times [2020-11-07 04:10:50,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:50,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377435685] [2020-11-07 04:10:50,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,240 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:51,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:10:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:10:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:10:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:51,513 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 04:10:51,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377435685] [2020-11-07 04:10:51,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:51,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 04:10:51,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356548535] [2020-11-07 04:10:51,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 04:10:51,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:51,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 04:10:51,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 04:10:51,551 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 3 states. [2020-11-07 04:10:53,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:10:53,323 INFO L93 Difference]: Finished difference Result 501 states and 600 transitions. [2020-11-07 04:10:53,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 04:10:53,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 04:10:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:10:53,355 INFO L225 Difference]: With dead ends: 501 [2020-11-07 04:10:53,355 INFO L226 Difference]: Without dead ends: 310 [2020-11-07 04:10:53,361 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 04:10:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-11-07 04:10:53,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-11-07 04:10:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-11-07 04:10:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-11-07 04:10:53,547 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 159 [2020-11-07 04:10:53,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:10:53,548 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-11-07 04:10:53,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 04:10:53,548 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-11-07 04:10:53,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 04:10:53,553 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:53,553 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 04:10:53,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:10:53,554 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 04:10:53,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:53,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1464709532, now seen corresponding path program 1 times [2020-11-07 04:10:53,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:53,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510267608] [2020-11-07 04:10:53,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,157 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:54,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 04:10:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:10:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 04:10:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:54,282 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 04:10:54,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510267608] [2020-11-07 04:10:54,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:54,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:10:54,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497615593] [2020-11-07 04:10:54,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:10:54,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:54,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:10:54,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:10:54,286 INFO L87 Difference]: Start difference. First operand 267 states and 292 transitions. Second operand 4 states. [2020-11-07 04:10:55,096 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:10:56,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:10:56,354 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2020-11-07 04:10:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 04:10:56,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 04:10:56,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:10:56,359 INFO L225 Difference]: With dead ends: 409 [2020-11-07 04:10:56,360 INFO L226 Difference]: Without dead ends: 293 [2020-11-07 04:10:56,361 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 [2020-11-07 04:10:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-11-07 04:10:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-11-07 04:10:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-11-07 04:10:56,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2020-11-07 04:10:56,492 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 160 [2020-11-07 04:10:56,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:10:56,492 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2020-11-07 04:10:56,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:10:56,493 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2020-11-07 04:10:56,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 04:10:56,498 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:56,498 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 04:10:56,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:10:56,499 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 04:10:56,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:56,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1108063253, now seen corresponding path program 1 times [2020-11-07 04:10:56,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:56,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200942259] [2020-11-07 04:10:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:56,982 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:10:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:10:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 04:10:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:57,187 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 04:10:57,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200942259] [2020-11-07 04:10:57,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:57,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:10:57,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733190765] [2020-11-07 04:10:57,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:10:57,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:57,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:10:57,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:10:57,190 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 9 states. [2020-11-07 04:10:58,005 WARN L194 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:10:58,453 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:10:58,827 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:10:59,206 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:10:59,596 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:10:59,982 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:01,171 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:11:03,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:03,989 INFO L93 Difference]: Finished difference Result 684 states and 791 transitions. [2020-11-07 04:11:03,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 04:11:03,989 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 04:11:03,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:04,000 INFO L225 Difference]: With dead ends: 684 [2020-11-07 04:11:04,001 INFO L226 Difference]: Without dead ends: 542 [2020-11-07 04:11:04,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:11:04,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-11-07 04:11:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 473. [2020-11-07 04:11:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-11-07 04:11:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 532 transitions. [2020-11-07 04:11:04,288 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 532 transitions. Word has length 169 [2020-11-07 04:11:04,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:04,289 INFO L481 AbstractCegarLoop]: Abstraction has 473 states and 532 transitions. [2020-11-07 04:11:04,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:11:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 532 transitions. [2020-11-07 04:11:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 04:11:04,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:04,293 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 04:11:04,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:11:04,294 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 04:11:04,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:04,294 INFO L82 PathProgramCache]: Analyzing trace with hash 852257396, now seen corresponding path program 1 times [2020-11-07 04:11:04,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:04,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300744158] [2020-11-07 04:11:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,724 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:11:04,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:11:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:11:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:11:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:11:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:11:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 04:11:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 04:11:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 04:11:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 04:11:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:04,935 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 04:11:04,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300744158] [2020-11-07 04:11:04,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:11:04,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:11:04,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079211544] [2020-11-07 04:11:04,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:11:04,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:11:04,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:11:04,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:11:04,940 INFO L87 Difference]: Start difference. First operand 473 states and 532 transitions. Second operand 9 states. [2020-11-07 04:11:05,682 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:11:08,035 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:08,435 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:11:08,886 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:09,321 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:11:09,723 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:11:10,092 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:10,462 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:11,537 INFO L93 Difference]: Finished difference Result 1271 states and 1532 transitions. [2020-11-07 04:11:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 04:11:11,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 04:11:11,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:11,554 INFO L225 Difference]: With dead ends: 1271 [2020-11-07 04:11:11,554 INFO L226 Difference]: Without dead ends: 913 [2020-11-07 04:11:11,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 04:11:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-11-07 04:11:11,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 813. [2020-11-07 04:11:11,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2020-11-07 04:11:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 941 transitions. [2020-11-07 04:11:11,956 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 941 transitions. Word has length 178 [2020-11-07 04:11:11,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:11,959 INFO L481 AbstractCegarLoop]: Abstraction has 813 states and 941 transitions. [2020-11-07 04:11:11,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:11:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 941 transitions. [2020-11-07 04:11:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 04:11:11,967 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:11,967 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 04:11:11,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:11:11,968 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 04:11:11,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:11,969 INFO L82 PathProgramCache]: Analyzing trace with hash 548422459, now seen corresponding path program 1 times [2020-11-07 04:11:11,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:11,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692400630] [2020-11-07 04:11:11,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,359 WARN L194 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:11:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:11:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:11:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:11:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:11:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:11:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 04:11:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 04:11:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 04:11:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 04:11:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 04:11:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,559 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 04:11:12,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692400630] [2020-11-07 04:11:12,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:11:12,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:11:12,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374143734] [2020-11-07 04:11:12,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:11:12,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:11:12,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:11:12,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:11:12,562 INFO L87 Difference]: Start difference. First operand 813 states and 941 transitions. Second operand 6 states. [2020-11-07 04:11:13,180 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:11:14,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:14,484 INFO L93 Difference]: Finished difference Result 1296 states and 1543 transitions. [2020-11-07 04:11:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 04:11:14,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 04:11:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:14,498 INFO L225 Difference]: With dead ends: 1296 [2020-11-07 04:11:14,498 INFO L226 Difference]: Without dead ends: 598 [2020-11-07 04:11:14,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 04:11:14,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-11-07 04:11:14,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 568. [2020-11-07 04:11:14,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-11-07 04:11:14,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 619 transitions. [2020-11-07 04:11:14,730 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 619 transitions. Word has length 183 [2020-11-07 04:11:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:14,730 INFO L481 AbstractCegarLoop]: Abstraction has 568 states and 619 transitions. [2020-11-07 04:11:14,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:11:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 619 transitions. [2020-11-07 04:11:14,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 04:11:14,734 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:14,734 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 04:11:14,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 04:11:14,735 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]=== [2020-11-07 04:11:14,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:14,735 INFO L82 PathProgramCache]: Analyzing trace with hash -209512305, now seen corresponding path program 1 times [2020-11-07 04:11:14,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:14,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478545281] [2020-11-07 04:11:14,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:11:14,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:11:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:11:14,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:11:15,167 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:11:15,168 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:11:15,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 04:11:15,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:11:15 BoogieIcfgContainer [2020-11-07 04:11:15,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:11:15,430 INFO L168 Benchmark]: Toolchain (without parser) took 27180.66 ms. Allocated memory was 157.3 MB in the beginning and 566.2 MB in the end (delta: 408.9 MB). Free memory was 133.0 MB in the beginning and 453.6 MB in the end (delta: -320.6 MB). Peak memory consumption was 89.7 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:15,431 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 105.6 MB in the beginning and 105.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:11:15,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.79 ms. Allocated memory is still 157.3 MB. Free memory was 132.5 MB in the beginning and 137.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:15,432 INFO L168 Benchmark]: Boogie Preprocessor took 108.22 ms. Allocated memory is still 157.3 MB. Free memory was 137.7 MB in the beginning and 133.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:15,433 INFO L168 Benchmark]: RCFGBuilder took 1387.36 ms. Allocated memory is still 157.3 MB. Free memory was 133.9 MB in the beginning and 119.8 MB in the end (delta: 14.1 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:15,434 INFO L168 Benchmark]: TraceAbstraction took 25053.94 ms. Allocated memory was 157.3 MB in the beginning and 566.2 MB in the end (delta: 408.9 MB). Free memory was 119.3 MB in the beginning and 453.6 MB in the end (delta: -334.3 MB). Peak memory consumption was 74.7 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:15,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 105.6 MB in the beginning and 105.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 608.79 ms. Allocated memory is still 157.3 MB. Free memory was 132.5 MB in the beginning and 137.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 108.22 ms. Allocated memory is still 157.3 MB. Free memory was 137.7 MB in the beginning and 133.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1387.36 ms. Allocated memory is still 157.3 MB. Free memory was 133.9 MB in the beginning and 119.8 MB in the end (delta: 14.1 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25053.94 ms. Allocated memory was 157.3 MB in the beginning and 566.2 MB in the end (delta: 408.9 MB). Free memory was 119.3 MB in the beginning and 453.6 MB in the end (delta: -334.3 MB). Peak memory consumption was 74.7 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: [L49] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=176, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=176, head={182:169}, methaneLevelCritical=152, pumpRunning=141, systemActive=140, waterLevel=1] [L50] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=176, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=176, head={182:169}, methaneLevelCritical=0, pumpRunning=141, systemActive=140, waterLevel=1] [L179] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=176, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=176, head={182:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=140, waterLevel=1] [L180] int systemActive = 1; VAL [\old(cleanupTimeShifts)=176, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=176, head={182:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L440] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=176, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={182:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=176, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] 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] [L517] 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] [L521] 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] [L522] 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] [L523] 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] [L940] 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] [L943] 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] [L944] 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] [L523] 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] [L523] 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] [L525] 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] [L527] 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] [L528] 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] [L507] 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] [L374] 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] [L375] 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] [L376] 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] [L377] 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] [L378] 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] [L381] 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] [L383] 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] [L385] 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] [L391] 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] [L393] 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] [L395] 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] [L67] 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] [L68] 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] [L395] 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] [L401] 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] [L403] 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] [L411] 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] [L413] 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] [L417] 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] [L419] 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] [L421] 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] [L360] 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] [L367] 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] [L421] 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] [L428] 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] [L186] 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] [L193] 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] [L201] 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] [L141] 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] [L142] 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] [L143] 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] [L147] 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] [L88] 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] [L91] 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] [L92] 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] [L147] 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] [L147] 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] [L149] 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] [L153] 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] [L120] 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] [L123] 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] [L124] 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] [L153] 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] [L153] 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] [L155] 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] [L157] 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] [L293] 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] [L296] 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] [L297] 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] [L157] 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] [L157] 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] [L159] 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] [L163] 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] [L543] 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_product23.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 40 procedures, 640 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 19.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1216 SDtfs, 1633 SDslu, 1579 SDs, 0 SdLazy, 3524 SolverSat, 528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=813occurred 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: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 278 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1032 NumberOfCodeBlocks, 1032 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 844 ConstructedInterpolants, 0 QuantifiedInterpolants, 375690 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...