/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:29:39,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:29:39,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:29:39,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:29:39,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:29:39,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:29:39,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:29:39,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:29:39,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:29:39,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:29:39,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:29:39,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:29:39,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:29:39,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:29:39,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:29:39,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:29:39,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:29:39,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:29:39,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:29:39,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:29:39,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:29:39,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:29:39,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:29:39,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:29:39,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:29:39,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:29:39,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:29:39,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:29:39,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:29:39,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:29:39,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:29:39,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:29:39,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:29:39,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:29:39,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:29:39,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:29:39,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:29:39,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:29:39,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:29:39,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:29:39,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:29:39,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:29:39,875 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:29:39,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:29:39,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:29:39,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:29:39,877 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:29:39,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:29:39,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:29:39,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:29:39,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:29:39,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:29:39,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:29:39,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:29:39,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:29:39,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:29:39,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:29:39,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:29:39,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:29:39,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:29:39,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:29:39,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:29:39,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:29:39,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:29:39,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:29:39,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:29:39,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:29:39,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:29:39,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:29:39,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:29:39,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:29:39,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:29:40,147 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:29:40,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:29:40,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:29:40,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:29:40,166 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:29:40,167 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-07-17 11:29:40,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657e8479b/64a30a6dde4c4ef089d266b5d64a84cb/FLAG904caa75f [2020-07-17 11:29:40,794 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:29:40,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-07-17 11:29:40,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657e8479b/64a30a6dde4c4ef089d266b5d64a84cb/FLAG904caa75f [2020-07-17 11:29:41,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657e8479b/64a30a6dde4c4ef089d266b5d64a84cb [2020-07-17 11:29:41,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:29:41,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:29:41,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:29:41,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:29:41,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:29:41,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c699f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41, skipping insertion in model container [2020-07-17 11:29:41,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:29:41,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:29:41,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:29:41,687 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:29:41,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:29:41,810 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:29:41,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41 WrapperNode [2020-07-17 11:29:41,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:29:41,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:29:41,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:29:41,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:29:41,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (1/1) ... [2020-07-17 11:29:41,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:29:41,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:29:41,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:29:41,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:29:41,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (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 11:29:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:29:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:29:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:29:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:29:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:29:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:29:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:29:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:29:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:29:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:29:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:29:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:29:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:29:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 11:29:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:29:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:29:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:29:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:29:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:29:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:29:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:29:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:29:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:29:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:29:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:29:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:29:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:29:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:29:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 11:29:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:29:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:29:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:29:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:29:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:29:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:29:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:29:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-17 11:29:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-17 11:29:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:29:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:29:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:29:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:29:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:29:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:29:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:29:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:29:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:29:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:29:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:29:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:29:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:29:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 11:29:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:29:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:29:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:29:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:29:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:29:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:29:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-17 11:29:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:29:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:29:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:29:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:29:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:29:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:29:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:29:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-17 11:29:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:29:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:29:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 11:29:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:29:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:29:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:29:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:29:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:29:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:29:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:29:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:29:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:29:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:29:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:29:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:29:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:29:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:29:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:29:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:29:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:29:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:29:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:29:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:29:42,977 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:29:42,977 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:29:42,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:29:42 BoogieIcfgContainer [2020-07-17 11:29:42,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:29:42,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:29:42,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:29:42,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:29:42,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:29:41" (1/3) ... [2020-07-17 11:29:42,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572138aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:29:42, skipping insertion in model container [2020-07-17 11:29:42,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:29:41" (2/3) ... [2020-07-17 11:29:42,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572138aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:29:42, skipping insertion in model container [2020-07-17 11:29:42,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:29:42" (3/3) ... [2020-07-17 11:29:42,991 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-07-17 11:29:43,002 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:29:43,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:29:43,025 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:29:43,051 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:29:43,051 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:29:43,052 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:29:43,052 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:29:43,052 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:29:43,052 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:29:43,053 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:29:43,053 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:29:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-07-17 11:29:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 11:29:43,086 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:29:43,087 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] [2020-07-17 11:29:43,087 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:29:43,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:29:43,092 INFO L82 PathProgramCache]: Analyzing trace with hash -884456721, now seen corresponding path program 1 times [2020-07-17 11:29:43,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:29:43,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500049739] [2020-07-17 11:29:43,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:29:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,714 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:29:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:43,809 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 11:29:43,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500049739] [2020-07-17 11:29:43,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:29:43,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:29:43,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769072048] [2020-07-17 11:29:43,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:29:43,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:29:43,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:29:43,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:29:43,836 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 4 states. [2020-07-17 11:29:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:29:44,883 INFO L93 Difference]: Finished difference Result 248 states and 328 transitions. [2020-07-17 11:29:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 11:29:44,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-17 11:29:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:29:44,900 INFO L225 Difference]: With dead ends: 248 [2020-07-17 11:29:44,900 INFO L226 Difference]: Without dead ends: 139 [2020-07-17 11:29:44,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:29:44,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-17 11:29:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 110. [2020-07-17 11:29:44,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-17 11:29:44,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2020-07-17 11:29:44,994 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 51 [2020-07-17 11:29:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:29:44,995 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2020-07-17 11:29:44,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:29:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2020-07-17 11:29:44,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:29:44,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:29:44,999 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] [2020-07-17 11:29:44,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:29:44,999 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:29:44,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:29:45,000 INFO L82 PathProgramCache]: Analyzing trace with hash -101366549, now seen corresponding path program 1 times [2020-07-17 11:29:45,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:29:45,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102489250] [2020-07-17 11:29:45,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:29:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,335 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:29:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:45,408 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 11:29:45,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102489250] [2020-07-17 11:29:45,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:29:45,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 11:29:45,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063168330] [2020-07-17 11:29:45,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 11:29:45,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:29:45,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 11:29:45,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:29:45,412 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 5 states. [2020-07-17 11:29:45,881 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:29:46,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:29:46,532 INFO L93 Difference]: Finished difference Result 193 states and 239 transitions. [2020-07-17 11:29:46,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 11:29:46,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-07-17 11:29:46,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:29:46,535 INFO L225 Difference]: With dead ends: 193 [2020-07-17 11:29:46,535 INFO L226 Difference]: Without dead ends: 129 [2020-07-17 11:29:46,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:29:46,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-07-17 11:29:46,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 101. [2020-07-17 11:29:46,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-17 11:29:46,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-07-17 11:29:46,569 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 52 [2020-07-17 11:29:46,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:29:46,570 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-07-17 11:29:46,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 11:29:46,570 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-07-17 11:29:46,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-17 11:29:46,572 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:29:46,572 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] [2020-07-17 11:29:46,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:29:46,573 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:29:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:29:46,573 INFO L82 PathProgramCache]: Analyzing trace with hash -388267202, now seen corresponding path program 1 times [2020-07-17 11:29:46,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:29:46,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383260164] [2020-07-17 11:29:46,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:29:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:46,948 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:29:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:47,096 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 11:29:47,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383260164] [2020-07-17 11:29:47,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:29:47,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 11:29:47,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669307037] [2020-07-17 11:29:47,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 11:29:47,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:29:47,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 11:29:47,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:29:47,100 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 9 states. [2020-07-17 11:29:47,480 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:29:47,768 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 11:29:48,035 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:48,256 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:29:49,210 INFO L93 Difference]: Finished difference Result 202 states and 254 transitions. [2020-07-17 11:29:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:29:49,210 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-07-17 11:29:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:29:49,213 INFO L225 Difference]: With dead ends: 202 [2020-07-17 11:29:49,213 INFO L226 Difference]: Without dead ends: 129 [2020-07-17 11:29:49,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:29:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-07-17 11:29:49,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 101. [2020-07-17 11:29:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-17 11:29:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-07-17 11:29:49,245 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 56 [2020-07-17 11:29:49,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:29:49,246 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-07-17 11:29:49,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 11:29:49,246 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-17 11:29:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-17 11:29:49,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:29:49,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:29:49,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:29:49,249 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:29:49,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:29:49,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1251165603, now seen corresponding path program 1 times [2020-07-17 11:29:49,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:29:49,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151854684] [2020-07-17 11:29:49,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:29:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,520 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:29:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:49,598 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 11:29:49,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151854684] [2020-07-17 11:29:49,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:29:49,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 11:29:49,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878063995] [2020-07-17 11:29:49,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 11:29:49,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:29:49,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 11:29:49,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:29:49,601 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 7 states. [2020-07-17 11:29:49,979 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:29:51,104 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:29:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:29:51,573 INFO L93 Difference]: Finished difference Result 287 states and 364 transitions. [2020-07-17 11:29:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 11:29:51,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-17 11:29:51,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:29:51,578 INFO L225 Difference]: With dead ends: 287 [2020-07-17 11:29:51,578 INFO L226 Difference]: Without dead ends: 214 [2020-07-17 11:29:51,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:29:51,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-07-17 11:29:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 168. [2020-07-17 11:29:51,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-17 11:29:51,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 195 transitions. [2020-07-17 11:29:51,655 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 195 transitions. Word has length 64 [2020-07-17 11:29:51,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:29:51,656 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 195 transitions. [2020-07-17 11:29:51,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 11:29:51,657 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 195 transitions. [2020-07-17 11:29:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-17 11:29:51,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:29:51,668 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] [2020-07-17 11:29:51,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:29:51,668 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:29:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:29:51,669 INFO L82 PathProgramCache]: Analyzing trace with hash 155242328, now seen corresponding path program 1 times [2020-07-17 11:29:51,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:29:51,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245969368] [2020-07-17 11:29:51,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:29:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,020 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:29:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:52,141 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 11:29:52,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245969368] [2020-07-17 11:29:52,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:29:52,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 11:29:52,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277893744] [2020-07-17 11:29:52,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 11:29:52,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:29:52,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 11:29:52,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:29:52,147 INFO L87 Difference]: Start difference. First operand 168 states and 195 transitions. Second operand 9 states. [2020-07-17 11:29:52,610 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:29:53,683 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:53,964 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:54,216 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:54,455 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:29:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:29:55,359 INFO L93 Difference]: Finished difference Result 495 states and 636 transitions. [2020-07-17 11:29:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-17 11:29:55,360 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-07-17 11:29:55,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:29:55,364 INFO L225 Difference]: With dead ends: 495 [2020-07-17 11:29:55,364 INFO L226 Difference]: Without dead ends: 355 [2020-07-17 11:29:55,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-07-17 11:29:55,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-07-17 11:29:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 284. [2020-07-17 11:29:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-07-17 11:29:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 330 transitions. [2020-07-17 11:29:55,439 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 330 transitions. Word has length 78 [2020-07-17 11:29:55,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:29:55,440 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 330 transitions. [2020-07-17 11:29:55,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 11:29:55,440 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 330 transitions. [2020-07-17 11:29:55,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-17 11:29:55,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:29:55,442 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] [2020-07-17 11:29:55,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:29:55,442 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:29:55,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:29:55,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1734675892, now seen corresponding path program 1 times [2020-07-17 11:29:55,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:29:55,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275511027] [2020-07-17 11:29:55,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:29:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,712 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:29:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:55,828 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 11:29:55,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275511027] [2020-07-17 11:29:55,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:29:55,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 11:29:55,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645487134] [2020-07-17 11:29:55,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 11:29:55,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:29:55,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 11:29:55,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:29:55,835 INFO L87 Difference]: Start difference. First operand 284 states and 330 transitions. Second operand 10 states. [2020-07-17 11:29:56,268 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:29:57,371 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:57,608 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:29:57,875 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:58,177 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:29:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:29:58,910 INFO L93 Difference]: Finished difference Result 646 states and 813 transitions. [2020-07-17 11:29:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-17 11:29:58,910 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-07-17 11:29:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:29:58,915 INFO L225 Difference]: With dead ends: 646 [2020-07-17 11:29:58,916 INFO L226 Difference]: Without dead ends: 390 [2020-07-17 11:29:58,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-07-17 11:29:58,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-07-17 11:29:58,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 283. [2020-07-17 11:29:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-07-17 11:29:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 327 transitions. [2020-07-17 11:29:58,980 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 327 transitions. Word has length 82 [2020-07-17 11:29:58,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:29:58,981 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 327 transitions. [2020-07-17 11:29:58,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 11:29:58,981 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 327 transitions. [2020-07-17 11:29:58,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-17 11:29:58,982 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:29:58,982 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] [2020-07-17 11:29:58,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:29:58,983 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:29:58,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:29:58,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1892436078, now seen corresponding path program 1 times [2020-07-17 11:29:58,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:29:58,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661474330] [2020-07-17 11:29:58,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:29:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,246 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:29:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:29:59,414 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 11:29:59,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661474330] [2020-07-17 11:29:59,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:29:59,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 11:29:59,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77975882] [2020-07-17 11:29:59,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 11:29:59,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:29:59,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 11:29:59,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:29:59,424 INFO L87 Difference]: Start difference. First operand 283 states and 327 transitions. Second operand 10 states. [2020-07-17 11:30:00,445 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:30:00,680 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 11:30:00,918 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:30:01,156 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:30:01,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:30:01,894 INFO L93 Difference]: Finished difference Result 649 states and 823 transitions. [2020-07-17 11:30:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 11:30:01,895 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-07-17 11:30:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:30:01,899 INFO L225 Difference]: With dead ends: 649 [2020-07-17 11:30:01,899 INFO L226 Difference]: Without dead ends: 394 [2020-07-17 11:30:01,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-07-17 11:30:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-07-17 11:30:01,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 293. [2020-07-17 11:30:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-07-17 11:30:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 337 transitions. [2020-07-17 11:30:01,959 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 337 transitions. Word has length 83 [2020-07-17 11:30:01,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:30:01,959 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 337 transitions. [2020-07-17 11:30:01,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 11:30:01,960 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 337 transitions. [2020-07-17 11:30:01,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-17 11:30:01,961 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:30:01,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:30:01,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 11:30:01,962 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:30:01,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:30:01,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1016327824, now seen corresponding path program 1 times [2020-07-17 11:30:01,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:30:01,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127709216] [2020-07-17 11:30:01,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:30:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,227 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:30:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:02,371 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 11:30:02,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127709216] [2020-07-17 11:30:02,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:30:02,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-17 11:30:02,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663477888] [2020-07-17 11:30:02,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 11:30:02,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:30:02,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 11:30:02,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:30:02,375 INFO L87 Difference]: Start difference. First operand 293 states and 337 transitions. Second operand 12 states. [2020-07-17 11:30:03,235 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:30:03,447 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:30:03,686 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:30:04,292 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:30:04,544 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:30:04,789 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:30:05,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:30:05,772 INFO L93 Difference]: Finished difference Result 673 states and 863 transitions. [2020-07-17 11:30:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 11:30:05,775 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-07-17 11:30:05,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:30:05,778 INFO L225 Difference]: With dead ends: 673 [2020-07-17 11:30:05,779 INFO L226 Difference]: Without dead ends: 408 [2020-07-17 11:30:05,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-07-17 11:30:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-07-17 11:30:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 301. [2020-07-17 11:30:05,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-07-17 11:30:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 345 transitions. [2020-07-17 11:30:05,839 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 345 transitions. Word has length 83 [2020-07-17 11:30:05,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:30:05,840 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 345 transitions. [2020-07-17 11:30:05,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 11:30:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 345 transitions. [2020-07-17 11:30:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-17 11:30:05,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:30:05,841 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] [2020-07-17 11:30:05,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 11:30:05,842 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:30:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:30:05,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1094962545, now seen corresponding path program 1 times [2020-07-17 11:30:05,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:30:05,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341174133] [2020-07-17 11:30:05,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:30:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,102 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:30:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:06,211 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 11:30:06,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341174133] [2020-07-17 11:30:06,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:30:06,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:30:06,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91325796] [2020-07-17 11:30:06,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:30:06,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:30:06,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:30:06,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:30:06,214 INFO L87 Difference]: Start difference. First operand 301 states and 345 transitions. Second operand 8 states. [2020-07-17 11:30:06,701 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:30:07,243 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:30:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:30:09,017 INFO L93 Difference]: Finished difference Result 972 states and 1282 transitions. [2020-07-17 11:30:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 11:30:09,018 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-07-17 11:30:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:30:09,026 INFO L225 Difference]: With dead ends: 972 [2020-07-17 11:30:09,026 INFO L226 Difference]: Without dead ends: 699 [2020-07-17 11:30:09,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2020-07-17 11:30:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-07-17 11:30:09,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 567. [2020-07-17 11:30:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-07-17 11:30:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 673 transitions. [2020-07-17 11:30:09,238 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 673 transitions. Word has length 83 [2020-07-17 11:30:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:30:09,241 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 673 transitions. [2020-07-17 11:30:09,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:30:09,241 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 673 transitions. [2020-07-17 11:30:09,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-17 11:30:09,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:30:09,245 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] [2020-07-17 11:30:09,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 11:30:09,245 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:30:09,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:30:09,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1057623401, now seen corresponding path program 1 times [2020-07-17 11:30:09,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:30:09,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877061885] [2020-07-17 11:30:09,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:30:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,520 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:30:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:30:09,634 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 11:30:09,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877061885] [2020-07-17 11:30:09,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:30:09,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:30:09,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882837655] [2020-07-17 11:30:09,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:30:09,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:30:09,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:30:09,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:30:09,636 INFO L87 Difference]: Start difference. First operand 567 states and 673 transitions. Second operand 8 states. [2020-07-17 11:30:09,990 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:30:11,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:30:11,773 INFO L93 Difference]: Finished difference Result 1114 states and 1455 transitions. [2020-07-17 11:30:11,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 11:30:11,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-07-17 11:30:11,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:30:11,781 INFO L225 Difference]: With dead ends: 1114 [2020-07-17 11:30:11,781 INFO L226 Difference]: Without dead ends: 1111 [2020-07-17 11:30:11,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2020-07-17 11:30:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2020-07-17 11:30:11,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 919. [2020-07-17 11:30:11,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-17 11:30:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1098 transitions. [2020-07-17 11:30:11,969 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1098 transitions. Word has length 87 [2020-07-17 11:30:11,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:30:11,970 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1098 transitions. [2020-07-17 11:30:11,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:30:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1098 transitions. [2020-07-17 11:30:11,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-17 11:30:11,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:30:11,979 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:11,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 11:30:11,979 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:30:11,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:30:11,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2007066912, now seen corresponding path program 1 times [2020-07-17 11:30:11,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:30:11,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096065250] [2020-07-17 11:30:11,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:30:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:30:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:30:12,294 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:30:12,294 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:30:12,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 11:30:12,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:30:12 BoogieIcfgContainer [2020-07-17 11:30:12,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:30:12,539 INFO L168 Benchmark]: Toolchain (without parser) took 31458.09 ms. Allocated memory was 146.3 MB in the beginning and 573.0 MB in the end (delta: 426.8 MB). Free memory was 103.4 MB in the beginning and 115.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 414.6 MB. Max. memory is 7.1 GB. [2020-07-17 11:30:12,539 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 11:30:12,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.23 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.0 MB in the beginning and 173.4 MB in the end (delta: -70.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-07-17 11:30:12,545 INFO L168 Benchmark]: Boogie Preprocessor took 89.74 ms. Allocated memory is still 204.5 MB. Free memory was 173.4 MB in the beginning and 168.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-17 11:30:12,546 INFO L168 Benchmark]: RCFGBuilder took 1081.43 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 168.8 MB in the beginning and 195.6 MB in the end (delta: -26.9 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:30:12,548 INFO L168 Benchmark]: TraceAbstraction took 29551.27 ms. Allocated memory was 234.4 MB in the beginning and 573.0 MB in the end (delta: 338.7 MB). Free memory was 195.6 MB in the beginning and 115.6 MB in the end (delta: 80.0 MB). Peak memory consumption was 418.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:30:12,557 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.23 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.0 MB in the beginning and 173.4 MB in the end (delta: -70.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.74 ms. Allocated memory is still 204.5 MB. Free memory was 173.4 MB in the beginning and 168.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1081.43 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 168.8 MB in the beginning and 195.6 MB in the end (delta: -26.9 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29551.27 ms. Allocated memory was 234.4 MB in the beginning and 573.0 MB in the end (delta: 338.7 MB). Free memory was 195.6 MB in the beginning and 115.6 MB in the end (delta: 80.0 MB). Peak memory consumption was 418.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 284]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L679] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; VAL [\old(cleanupTimeShifts)=175, \old(head)=166, \old(head)=177, \old(methAndRunningLastTime)=173, \old(methaneLevelCritical)=147, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] int retValue_acc ; [L258] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L262] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L263] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L264] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L264] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L264] tmp = valid_product() [L266] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L268] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L269] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L250] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L881] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L250] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L251] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] int splverifierCounter ; [L447] int tmp ; [L448] int tmp___0 ; [L449] int tmp___1 ; [L450] int tmp___2 ; [L453] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L455] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L457] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L463] tmp = __VERIFIER_nondet_int() [L465] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L467] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L467] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L477] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L115] COND FALSE !(\read(methaneLevelCritical)) [L118] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L477] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L498] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L300] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L307] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L309] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L329] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L332] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] int retValue_acc ; [L427] int tmp ; [L428] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L432] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L165] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L168] COND FALSE !(waterLevel < 2) [L172] retValue_acc = 0 [L173] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L432] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L432] tmp = isHighWaterSensorDry() [L434] COND FALSE !(\read(tmp)) [L437] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L439] retValue_acc = tmp___0 [L440] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L334] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] tmp = isHighWaterLevel() [L336] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L338] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L357] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L338] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L309] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L315] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L886] int tmp ; [L887] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L891] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L891] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L895] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L895] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L898] COND FALSE !(\read(methAndRunningLastTime)) [L903] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L315] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L498] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L455] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L457] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L463] tmp = __VERIFIER_nondet_int() [L465] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=2] [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-2, waterLevel=2] [L498] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L300] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L91] COND TRUE waterLevel > 0 [L92] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L302] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L307] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L309] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L329] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L332] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L347] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L309] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L315] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L886] int tmp ; [L887] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L891] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L891] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L895] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L895] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L898] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L900] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L284] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 968 SDtfs, 2411 SDslu, 1128 SDs, 0 SdLazy, 4853 SolverSat, 1538 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=919occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 841 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 709 ConstructedInterpolants, 0 QuantifiedInterpolants, 223536 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...