/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:50:21,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:50:21,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:50:21,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:50:21,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:50:21,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:50:21,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:50:21,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:50:21,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:50:21,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:50:21,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:50:21,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:50:21,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:50:21,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:50:21,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:50:21,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:50:21,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:50:21,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:50:21,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:50:21,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:50:21,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:50:21,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:50:21,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:50:21,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:50:21,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:50:21,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:50:21,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:50:21,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:50:21,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:50:21,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:50:21,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:50:21,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:50:21,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:50:21,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:50:21,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:50:21,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:50:21,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:50:21,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:50:21,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:50:21,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:50:21,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:50:21,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:50:21,708 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:50:21,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:50:21,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:50:21,711 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:50:21,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:50:21,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:50:21,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:50:21,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:50:21,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:50:21,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:50:21,713 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:50:21,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:50:21,714 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:50:21,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:50:21,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:50:21,714 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:50:21,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:50:21,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:50:21,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:50:21,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:50:21,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:50:21,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:50:21,716 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 [2020-09-04 20:50:22,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:50:22,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:50:22,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:50:22,169 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:50:22,170 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:50:22,172 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-04 20:50:22,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/397e254aa/4ee0d16441c2476386ca39a1b4e2b644/FLAGbe602456c [2020-09-04 20:50:22,852 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:50:22,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-04 20:50:22,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/397e254aa/4ee0d16441c2476386ca39a1b4e2b644/FLAGbe602456c [2020-09-04 20:50:23,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/397e254aa/4ee0d16441c2476386ca39a1b4e2b644 [2020-09-04 20:50:23,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:50:23,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:50:23,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:50:23,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:50:23,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:50:23,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23, skipping insertion in model container [2020-09-04 20:50:23,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:50:23,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:50:23,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:50:23,644 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:50:23,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:50:23,866 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:50:23,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23 WrapperNode [2020-09-04 20:50:23,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:50:23,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:50:23,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:50:23,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:50:23,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:50:23,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:50:23,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:50:23,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:50:23,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 20:50:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:50:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:50:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:50:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:50:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:50:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:50:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:50:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:50:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:50:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:50:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:50:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:50:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:50:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:50:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:50:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:50:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:50:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:50:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:50:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:50:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:50:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:50:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 20:50:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:50:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:50:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:50:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:50:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:50:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:50:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:50:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:50:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:50:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:50:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:50:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:50:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:50:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:50:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:50:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:50:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:50:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:50:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:50:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:50:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:50:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:50:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:50:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:50:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:50:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:50:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:50:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:50:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:50:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:50:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:50:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:50:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:50:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:50:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:50:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:50:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:50:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:50:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:50:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:50:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:50:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:50:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:50:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:50:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:50:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:50:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:50:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:50:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:50:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:50:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:50:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:50:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:50:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:50:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:50:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:50:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:50:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:50:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:50:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:50:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:50:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:50:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:50:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:50:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 20:50:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:50:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:50:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:50:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:50:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:50:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:50:25,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:50:25,330 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:50:25,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:50:25 BoogieIcfgContainer [2020-09-04 20:50:25,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:50:25,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:50:25,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:50:25,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:50:25,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:50:23" (1/3) ... [2020-09-04 20:50:25,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6712b26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:50:25, skipping insertion in model container [2020-09-04 20:50:25,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (2/3) ... [2020-09-04 20:50:25,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6712b26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:50:25, skipping insertion in model container [2020-09-04 20:50:25,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:50:25" (3/3) ... [2020-09-04 20:50:25,349 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-09-04 20:50:25,360 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:50:25,371 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:50:25,393 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:50:25,417 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:50:25,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:50:25,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:50:25,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:50:25,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:50:25,418 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:50:25,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:50:25,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:50:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-09-04 20:50:25,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:50:25,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:25,466 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] [2020-09-04 20:50:25,466 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:25,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:25,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1612013966, now seen corresponding path program 1 times [2020-09-04 20:50:25,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:25,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954872800] [2020-09-04 20:50:25,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,300 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:26,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:50:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:50:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:50:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:26,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954872800] [2020-09-04 20:50:26,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:26,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:50:26,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065027392] [2020-09-04 20:50:26,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:50:26,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:26,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:50:26,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:50:26,497 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2020-09-04 20:50:27,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:27,946 INFO L93 Difference]: Finished difference Result 523 states and 625 transitions. [2020-09-04 20:50:27,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:50:27,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:50:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:27,969 INFO L225 Difference]: With dead ends: 523 [2020-09-04 20:50:27,969 INFO L226 Difference]: Without dead ends: 321 [2020-09-04 20:50:27,975 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 [2020-09-04 20:50:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-04 20:50:28,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 276. [2020-09-04 20:50:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-04 20:50:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 303 transitions. [2020-09-04 20:50:28,126 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 303 transitions. Word has length 153 [2020-09-04 20:50:28,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:28,127 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 303 transitions. [2020-09-04 20:50:28,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:50:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 303 transitions. [2020-09-04 20:50:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:50:28,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:28,133 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] [2020-09-04 20:50:28,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:50:28,134 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:28,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:28,135 INFO L82 PathProgramCache]: Analyzing trace with hash -178714613, now seen corresponding path program 1 times [2020-09-04 20:50:28,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:28,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662782414] [2020-09-04 20:50:28,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,623 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:28,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:50:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:50:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:50:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:28,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662782414] [2020-09-04 20:50:28,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:28,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:50:28,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828183883] [2020-09-04 20:50:28,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:50:28,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:28,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:50:28,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:50:28,718 INFO L87 Difference]: Start difference. First operand 276 states and 303 transitions. Second operand 4 states. [2020-09-04 20:50:29,392 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:50:30,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:30,600 INFO L93 Difference]: Finished difference Result 434 states and 492 transitions. [2020-09-04 20:50:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:50:30,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:50:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:30,608 INFO L225 Difference]: With dead ends: 434 [2020-09-04 20:50:30,608 INFO L226 Difference]: Without dead ends: 304 [2020-09-04 20:50:30,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:50:30,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-04 20:50:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 266. [2020-09-04 20:50:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-04 20:50:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2020-09-04 20:50:30,707 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 154 [2020-09-04 20:50:30,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:30,708 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2020-09-04 20:50:30,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:50:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2020-09-04 20:50:30,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 20:50:30,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:30,711 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] [2020-09-04 20:50:30,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:50:30,712 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:30,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:30,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1820602845, now seen corresponding path program 1 times [2020-09-04 20:50:30,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:30,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197565147] [2020-09-04 20:50:30,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,125 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:31,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:50:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:50:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 20:50:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:31,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197565147] [2020-09-04 20:50:31,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:31,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:50:31,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894012647] [2020-09-04 20:50:31,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:50:31,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:31,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:50:31,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:50:31,329 INFO L87 Difference]: Start difference. First operand 266 states and 290 transitions. Second operand 9 states. [2020-09-04 20:50:31,790 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:32,158 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:50:32,480 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:50:32,800 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:33,098 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:33,386 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:34,353 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:50:36,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:36,984 INFO L93 Difference]: Finished difference Result 724 states and 837 transitions. [2020-09-04 20:50:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:50:36,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 20:50:36,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:36,991 INFO L225 Difference]: With dead ends: 724 [2020-09-04 20:50:36,991 INFO L226 Difference]: Without dead ends: 568 [2020-09-04 20:50:36,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 20:50:36,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-09-04 20:50:37,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 497. [2020-09-04 20:50:37,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-09-04 20:50:37,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 560 transitions. [2020-09-04 20:50:37,192 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 560 transitions. Word has length 163 [2020-09-04 20:50:37,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:37,193 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 560 transitions. [2020-09-04 20:50:37,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:50:37,193 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 560 transitions. [2020-09-04 20:50:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 20:50:37,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:37,197 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] [2020-09-04 20:50:37,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:50:37,198 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:37,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1334837787, now seen corresponding path program 1 times [2020-09-04 20:50:37,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:37,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124346125] [2020-09-04 20:50:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,561 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:37,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:50:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:50:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 20:50:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 20:50:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:37,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124346125] [2020-09-04 20:50:37,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:37,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:50:37,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275178478] [2020-09-04 20:50:37,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:50:37,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:37,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:50:37,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:50:37,746 INFO L87 Difference]: Start difference. First operand 497 states and 560 transitions. Second operand 9 states. [2020-09-04 20:50:38,215 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:40,350 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:40,691 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:41,058 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:41,401 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:41,705 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:42,013 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:42,271 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:43,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:43,425 INFO L93 Difference]: Finished difference Result 1358 states and 1641 transitions. [2020-09-04 20:50:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:50:43,427 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 20:50:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:43,434 INFO L225 Difference]: With dead ends: 1358 [2020-09-04 20:50:43,434 INFO L226 Difference]: Without dead ends: 971 [2020-09-04 20:50:43,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:50:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-09-04 20:50:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 867. [2020-09-04 20:50:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-09-04 20:50:43,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1001 transitions. [2020-09-04 20:50:43,717 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1001 transitions. Word has length 172 [2020-09-04 20:50:43,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:43,717 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1001 transitions. [2020-09-04 20:50:43,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:50:43,718 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1001 transitions. [2020-09-04 20:50:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:50:43,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:43,723 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] [2020-09-04 20:50:43,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:50:43,724 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:43,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:43,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1117798554, now seen corresponding path program 1 times [2020-09-04 20:50:43,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:43,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850684230] [2020-09-04 20:50:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,090 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:44,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:50:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:50:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:50:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:50:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-04 20:50:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:44,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850684230] [2020-09-04 20:50:44,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:44,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 20:50:44,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671274004] [2020-09-04 20:50:44,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 20:50:44,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:44,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 20:50:44,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 20:50:44,406 INFO L87 Difference]: Start difference. First operand 867 states and 1001 transitions. Second operand 6 states. [2020-09-04 20:50:45,082 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:47,499 INFO L93 Difference]: Finished difference Result 2006 states and 2416 transitions. [2020-09-04 20:50:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 20:50:47,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-04 20:50:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:47,508 INFO L225 Difference]: With dead ends: 2006 [2020-09-04 20:50:47,508 INFO L226 Difference]: Without dead ends: 1249 [2020-09-04 20:50:47,512 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 [2020-09-04 20:50:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2020-09-04 20:50:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1152. [2020-09-04 20:50:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-09-04 20:50:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1315 transitions. [2020-09-04 20:50:47,887 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1315 transitions. Word has length 177 [2020-09-04 20:50:47,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:47,888 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1315 transitions. [2020-09-04 20:50:47,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 20:50:47,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1315 transitions. [2020-09-04 20:50:47,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:50:47,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:47,894 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] [2020-09-04 20:50:47,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:50:47,895 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:47,895 INFO L82 PathProgramCache]: Analyzing trace with hash 654753658, now seen corresponding path program 1 times [2020-09-04 20:50:47,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:47,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234038069] [2020-09-04 20:50:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:50:48,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:50:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:50:48,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:50:48,386 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:50:48,386 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:50:48,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:50:48,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:50:48 BoogieIcfgContainer [2020-09-04 20:50:48,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:50:48,673 INFO L168 Benchmark]: Toolchain (without parser) took 25515.09 ms. Allocated memory was 140.0 MB in the beginning and 742.4 MB in the end (delta: 602.4 MB). Free memory was 102.1 MB in the beginning and 562.9 MB in the end (delta: -460.8 MB). Peak memory consumption was 141.6 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:48,678 INFO L168 Benchmark]: CDTParser took 1.90 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 20:50:48,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.60 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.9 MB in the beginning and 174.8 MB in the end (delta: -72.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:48,679 INFO L168 Benchmark]: Boogie Preprocessor took 109.45 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:48,682 INFO L168 Benchmark]: RCFGBuilder took 1360.27 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 170.7 MB in the beginning and 176.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:48,683 INFO L168 Benchmark]: TraceAbstraction took 23331.16 ms. Allocated memory was 237.0 MB in the beginning and 742.4 MB in the end (delta: 505.4 MB). Free memory was 176.4 MB in the beginning and 562.9 MB in the end (delta: -386.5 MB). Peak memory consumption was 118.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:48,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.90 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.60 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.9 MB in the beginning and 174.8 MB in the end (delta: -72.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.45 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1360.27 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 170.7 MB in the beginning and 176.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23331.16 ms. Allocated memory was 237.0 MB in the beginning and 742.4 MB in the end (delta: 505.4 MB). Free memory was 176.4 MB in the beginning and 562.9 MB in the end (delta: -386.5 MB). Peak memory consumption was 118.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={176:163}, methaneLevelCritical=149, pumpRunning=141, systemActive=140, waterLevel=142] [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=141, systemActive=140, waterLevel=142] [L629] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=140, waterLevel=142] [L630] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=142] [L841] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=1] [L842] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] 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] [L131] 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] [L135] 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] [L136] 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] [L137] 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] [L179] 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] [L182] 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] [L183] 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] [L137] 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] [L137] 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] [L139] 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] [L141] 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] [L142] 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] [L121] 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] [L556] 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] [L557] 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] [L558] 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] [L559] 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] [L560] 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] [L563] 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] [L565] 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] [L567] 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] [L573] 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] [L575] 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] [L577] 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] [L859] 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] [L860] 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] [L577] 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] [L583] 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] [L585] 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] [L593] 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] [L595] 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] [L599] 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] [L601] 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] [L603] 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] [L828] 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] [L835] 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] [L603] 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] [L610] 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] [L637] 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] [L644] 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] [L652] 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] [L936] 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] [L937] 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] [L938] 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] [L942] 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] [L880] 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] [L883] 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] [L884] 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] [L942] 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] [L942] 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] [L944] 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] [L948] 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] [L912] 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] [L915] 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] [L916] 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] [L948] 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] [L948] 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] [L950] 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] [L952] 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] [L761] 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] [L764] 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] [L765] 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] [L952] 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] [L952] 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] [L954] 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] [L958] 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] [L44] __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 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1309 SDtfs, 2065 SDslu, 1451 SDs, 0 SdLazy, 3892 SolverSat, 715 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1152occurred 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: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 355 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 341532 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...