/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:37:09,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:37:09,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:37:09,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:37:09,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:37:09,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:37:09,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:37:09,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:37:09,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:37:09,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:37:09,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:37:09,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:37:09,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:37:09,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:37:09,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:37:09,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:37:09,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:37:09,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:37:09,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:37:09,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:37:09,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:37:09,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:37:09,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:37:09,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:37:09,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:37:09,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:37:09,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:37:09,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:37:09,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:37:09,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:37:09,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:37:09,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:37:09,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:37:09,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:37:09,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:37:09,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:37:09,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:37:09,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:37:09,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:37:09,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:37:09,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:37:09,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:37:09,915 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:37:09,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:37:09,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:37:09,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:37:09,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:37:09,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:37:09,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:37:09,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:37:09,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:37:09,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:37:09,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:37:09,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:37:09,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:37:09,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:37:09,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:37:09,921 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:37:09,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:37:09,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:37:09,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:37:09,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:37:09,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:37:09,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:37:09,922 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-07-17 16:37:10,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:37:10,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:37:10,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:37:10,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:37:10,227 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:37:10,228 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-07-17 16:37:10,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12f85039/933701296c5347c1820dba948a64ec27/FLAGfbd6b8f94 [2020-07-17 16:37:10,884 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:37:10,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-07-17 16:37:10,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12f85039/933701296c5347c1820dba948a64ec27/FLAGfbd6b8f94 [2020-07-17 16:37:11,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12f85039/933701296c5347c1820dba948a64ec27 [2020-07-17 16:37:11,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:37:11,147 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:37:11,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:37:11,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:37:11,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:37:11,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49257e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11, skipping insertion in model container [2020-07-17 16:37:11,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:37:11,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:37:11,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:37:11,707 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:37:11,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:37:11,843 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:37:11,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11 WrapperNode [2020-07-17 16:37:11,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:37:11,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:37:11,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:37:11,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:37:11,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (1/1) ... [2020-07-17 16:37:11,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:37:11,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:37:11,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:37:11,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:37:11,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (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 [2020-07-17 16:37:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:37:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:37:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:37:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:37:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:37:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:37:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:37:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:37:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-17 16:37:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:37:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:37:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:37:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:37:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:37:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 16:37:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 16:37:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 16:37:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 16:37:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 16:37:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:37:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:37:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:37:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:37:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:37:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:37:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:37:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:37:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:37:12,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:37:12,009 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:37:12,009 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:37:12,009 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:37:12,009 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:37:12,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:37:12,010 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:37:12,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:37:12,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 16:37:12,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 16:37:12,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:37:12,010 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:37:12,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:37:12,011 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:37:12,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:37:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:37:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:37:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:37:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:37:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:37:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 16:37:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 16:37:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:37:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:37:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:37:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:37:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:37:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:37:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 16:37:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 16:37:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:37:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:37:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:37:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:37:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 16:37:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:37:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:37:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 16:37:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:37:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 16:37:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-17 16:37:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:37:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:37:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:37:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:37:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:37:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:37:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:37:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:37:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:37:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:37:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:37:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:37:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:37:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:37:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:37:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:37:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:37:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:37:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:37:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:37:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:37:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:37:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:37:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:37:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:37:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:37:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:37:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:37:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:37:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:37:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:37:13,332 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:37:13,333 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:37:13,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:37:13 BoogieIcfgContainer [2020-07-17 16:37:13,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:37:13,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:37:13,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:37:13,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:37:13,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:37:11" (1/3) ... [2020-07-17 16:37:13,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408a75cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:37:13, skipping insertion in model container [2020-07-17 16:37:13,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:37:11" (2/3) ... [2020-07-17 16:37:13,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408a75cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:37:13, skipping insertion in model container [2020-07-17 16:37:13,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:37:13" (3/3) ... [2020-07-17 16:37:13,357 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-07-17 16:37:13,366 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:37:13,374 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:37:13,389 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:37:13,411 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:37:13,411 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:37:13,411 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:37:13,411 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:37:13,412 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:37:13,412 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:37:13,412 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:37:13,412 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:37:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-07-17 16:37:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-17 16:37:13,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:37:13,459 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] [2020-07-17 16:37:13,460 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:37:13,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:37:13,466 INFO L82 PathProgramCache]: Analyzing trace with hash 179280132, now seen corresponding path program 1 times [2020-07-17 16:37:13,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:37:13,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495668329] [2020-07-17 16:37:13,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:37:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,282 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:37:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:37:14,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495668329] [2020-07-17 16:37:14,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:37:14,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 16:37:14,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919847054] [2020-07-17 16:37:14,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 16:37:14,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:37:14,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 16:37:14,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:37:14,494 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-07-17 16:37:16,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:37:16,041 INFO L93 Difference]: Finished difference Result 570 states and 673 transitions. [2020-07-17 16:37:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 16:37:16,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-17 16:37:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:37:16,062 INFO L225 Difference]: With dead ends: 570 [2020-07-17 16:37:16,062 INFO L226 Difference]: Without dead ends: 345 [2020-07-17 16:37:16,068 INFO L675 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 [2020-07-17 16:37:16,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-07-17 16:37:16,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 299. [2020-07-17 16:37:16,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-07-17 16:37:16,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 326 transitions. [2020-07-17 16:37:16,257 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 326 transitions. Word has length 153 [2020-07-17 16:37:16,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:37:16,258 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 326 transitions. [2020-07-17 16:37:16,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 16:37:16,258 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 326 transitions. [2020-07-17 16:37:16,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-17 16:37:16,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:37:16,263 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] [2020-07-17 16:37:16,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:37:16,264 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:37:16,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:37:16,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1644789212, now seen corresponding path program 1 times [2020-07-17 16:37:16,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:37:16,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714497965] [2020-07-17 16:37:16,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:37:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,589 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:37:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:37:16,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714497965] [2020-07-17 16:37:16,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:37:16,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:37:16,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550512322] [2020-07-17 16:37:16,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:37:16,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:37:16,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:37:16,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:37:16,663 INFO L87 Difference]: Start difference. First operand 299 states and 326 transitions. Second operand 4 states. [2020-07-17 16:37:17,254 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:37:18,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:37:18,486 INFO L93 Difference]: Finished difference Result 477 states and 536 transitions. [2020-07-17 16:37:18,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 16:37:18,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-17 16:37:18,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:37:18,492 INFO L225 Difference]: With dead ends: 477 [2020-07-17 16:37:18,492 INFO L226 Difference]: Without dead ends: 328 [2020-07-17 16:37:18,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 16:37:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-07-17 16:37:18,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 289. [2020-07-17 16:37:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-07-17 16:37:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 313 transitions. [2020-07-17 16:37:18,637 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 313 transitions. Word has length 154 [2020-07-17 16:37:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:37:18,637 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 313 transitions. [2020-07-17 16:37:18,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:37:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 313 transitions. [2020-07-17 16:37:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-17 16:37:18,641 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:37:18,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:37:18,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:37:18,641 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:37:18,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:37:18,642 INFO L82 PathProgramCache]: Analyzing trace with hash -205094291, now seen corresponding path program 1 times [2020-07-17 16:37:18,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:37:18,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950564076] [2020-07-17 16:37:18,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:37:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:18,935 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:37:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:37:19,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950564076] [2020-07-17 16:37:19,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:37:19,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:37:19,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910008179] [2020-07-17 16:37:19,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:37:19,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:37:19,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:37:19,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:37:19,090 INFO L87 Difference]: Start difference. First operand 289 states and 313 transitions. Second operand 10 states. [2020-07-17 16:37:19,570 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:37:19,913 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:37:20,153 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:37:20,404 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:37:20,665 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:37:20,905 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:37:21,796 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:37:24,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:37:24,786 INFO L93 Difference]: Finished difference Result 817 states and 945 transitions. [2020-07-17 16:37:24,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:37:24,787 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-17 16:37:24,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:37:24,794 INFO L225 Difference]: With dead ends: 817 [2020-07-17 16:37:24,794 INFO L226 Difference]: Without dead ends: 638 [2020-07-17 16:37:24,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:37:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-07-17 16:37:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 539. [2020-07-17 16:37:25,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-07-17 16:37:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 602 transitions. [2020-07-17 16:37:25,077 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 602 transitions. Word has length 167 [2020-07-17 16:37:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:37:25,080 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 602 transitions. [2020-07-17 16:37:25,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:37:25,083 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 602 transitions. [2020-07-17 16:37:25,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-17 16:37:25,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:37:25,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:37:25,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:37:25,091 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:37:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:37:25,092 INFO L82 PathProgramCache]: Analyzing trace with hash 935759642, now seen corresponding path program 1 times [2020-07-17 16:37:25,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:37:25,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373117797] [2020-07-17 16:37:25,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:37:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,458 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:37:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:37:25,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373117797] [2020-07-17 16:37:25,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:37:25,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:37:25,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164269651] [2020-07-17 16:37:25,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:37:25,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:37:25,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:37:25,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:37:25,591 INFO L87 Difference]: Start difference. First operand 539 states and 602 transitions. Second operand 9 states. [2020-07-17 16:37:26,033 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:37:28,013 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:37:28,273 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:37:28,632 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:37:28,970 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:37:29,238 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:37:29,490 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:37:29,755 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:37:31,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:37:31,049 INFO L93 Difference]: Finished difference Result 1487 states and 1773 transitions. [2020-07-17 16:37:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-17 16:37:31,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-17 16:37:31,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:37:31,065 INFO L225 Difference]: With dead ends: 1487 [2020-07-17 16:37:31,065 INFO L226 Difference]: Without dead ends: 1058 [2020-07-17 16:37:31,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-17 16:37:31,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2020-07-17 16:37:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 951. [2020-07-17 16:37:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-07-17 16:37:31,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1085 transitions. [2020-07-17 16:37:31,377 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1085 transitions. Word has length 172 [2020-07-17 16:37:31,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:37:31,378 INFO L479 AbstractCegarLoop]: Abstraction has 951 states and 1085 transitions. [2020-07-17 16:37:31,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:37:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1085 transitions. [2020-07-17 16:37:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-17 16:37:31,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:37:31,384 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] [2020-07-17 16:37:31,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:37:31,385 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:37:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:37:31,385 INFO L82 PathProgramCache]: Analyzing trace with hash -455034656, now seen corresponding path program 1 times [2020-07-17 16:37:31,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:37:31,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482717188] [2020-07-17 16:37:31,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:37:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,728 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:37:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:37:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:37:31,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482717188] [2020-07-17 16:37:31,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:37:31,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 16:37:31,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355520256] [2020-07-17 16:37:31,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 16:37:31,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:37:31,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 16:37:31,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 16:37:31,901 INFO L87 Difference]: Start difference. First operand 951 states and 1085 transitions. Second operand 6 states. [2020-07-17 16:37:32,573 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:37:34,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:37:34,876 INFO L93 Difference]: Finished difference Result 2131 states and 2544 transitions. [2020-07-17 16:37:34,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 16:37:34,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-17 16:37:34,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:37:34,885 INFO L225 Difference]: With dead ends: 2131 [2020-07-17 16:37:34,885 INFO L226 Difference]: Without dead ends: 1290 [2020-07-17 16:37:34,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:37:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2020-07-17 16:37:35,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1190. [2020-07-17 16:37:35,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2020-07-17 16:37:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1353 transitions. [2020-07-17 16:37:35,267 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1353 transitions. Word has length 177 [2020-07-17 16:37:35,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:37:35,268 INFO L479 AbstractCegarLoop]: Abstraction has 1190 states and 1353 transitions. [2020-07-17 16:37:35,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 16:37:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1353 transitions. [2020-07-17 16:37:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-17 16:37:35,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:37:35,272 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] [2020-07-17 16:37:35,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:37:35,273 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:37:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:37:35,273 INFO L82 PathProgramCache]: Analyzing trace with hash 403214129, now seen corresponding path program 1 times [2020-07-17 16:37:35,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:37:35,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616136681] [2020-07-17 16:37:35,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:37:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:37:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:37:35,538 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 16:37:35,538 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 16:37:35,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:37:35,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:37:35 BoogieIcfgContainer [2020-07-17 16:37:35,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 16:37:35,739 INFO L168 Benchmark]: Toolchain (without parser) took 24593.05 ms. Allocated memory was 139.5 MB in the beginning and 695.2 MB in the end (delta: 555.7 MB). Free memory was 104.2 MB in the beginning and 418.3 MB in the end (delta: -314.1 MB). Peak memory consumption was 241.6 MB. Max. memory is 7.1 GB. [2020-07-17 16:37:35,740 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 16:37:35,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.02 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 103.8 MB in the beginning and 170.1 MB in the end (delta: -66.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-07-17 16:37:35,742 INFO L168 Benchmark]: Boogie Preprocessor took 103.79 ms. Allocated memory is still 203.4 MB. Free memory was 170.1 MB in the beginning and 166.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-17 16:37:35,742 INFO L168 Benchmark]: RCFGBuilder took 1397.46 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 167.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. [2020-07-17 16:37:35,743 INFO L168 Benchmark]: TraceAbstraction took 22389.48 ms. Allocated memory was 235.4 MB in the beginning and 695.2 MB in the end (delta: 459.8 MB). Free memory was 167.8 MB in the beginning and 418.3 MB in the end (delta: -250.5 MB). Peak memory consumption was 209.3 MB. Max. memory is 7.1 GB. [2020-07-17 16:37:35,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.02 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 103.8 MB in the beginning and 170.1 MB in the end (delta: -66.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.79 ms. Allocated memory is still 203.4 MB. Free memory was 170.1 MB in the beginning and 166.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1397.46 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 167.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22389.48 ms. Allocated memory was 235.4 MB in the beginning and 695.2 MB in the end (delta: 459.8 MB). Free memory was 167.8 MB in the beginning and 418.3 MB in the end (delta: -250.5 MB). Peak memory consumption was 209.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=168, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=174, head={176:168}, methaneLevelCritical=151, pumpRunning=0, systemActive=138, waterLevel=146] [L125] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=168, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=174, head={176:168}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=146] [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=168, \old(methaneLevelCritical)=151, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=146] [L812] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=168, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=1] [L813] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=168, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=168, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L988] 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] [L989] 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] [L993] 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] [L994] 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] [L995] 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] [L803] 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] [L806] 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] [L807] 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] [L995] 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] [L995] 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] [L997] 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] [L999] 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] [L1000] 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] [L982] 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] [L47] 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] [L48] 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] [L49] 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] [L50] 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] [L51] 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] [L54] 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] [L56] 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] [L58] 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] [L64] 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] [L66] 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] [L68] 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] [L830] 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] [L831] 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] [L68] 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] [L74] 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] [L76] 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] [L84] 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] [L86] 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] [L92] 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] [L94] 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] [L96] 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] [L343] 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] [L350] 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] [L96] 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] [L103] 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] [L132] 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] [L139] 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] [L147] 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] [L366] 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] [L367] 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] [L368] 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] [L372] 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] [L851] 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] [L854] 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] [L855] 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] [L372] 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] [L372] 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] [L374] 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] [L378] 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] [L883] 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] [L886] 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] [L887] 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] [L378] 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] [L378] 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] [L380] 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] [L382] 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] [L257] 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] [L260] 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] [L261] 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] [L382] 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] [L382] 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] [L384] 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] [L388] 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] [L769] __VERIFIER_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 43 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1426 SDtfs, 2833 SDslu, 1635 SDs, 0 SdLazy, 4114 SolverSat, 1020 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1190occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 391 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 332636 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...