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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:02,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:02,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:02,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:02,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:02,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:02,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:02,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:02,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:02,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:02,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:02,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:02,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:02,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:02,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:02,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:02,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:02,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:02,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:02,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:02,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:02,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:02,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:02,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:02,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:02,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:02,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:02,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:02,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:02,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:02,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:02,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:02,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:02,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:02,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:02,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:02,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:02,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:02,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:02,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:02,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:02,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:48:02,927 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:02,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:02,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:02,928 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:02,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:02,929 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:02,929 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:02,930 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:02,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:02,930 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:02,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:02,933 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:02,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:02,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:02,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:02,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:02,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:02,934 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:02,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:02,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:02,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:02,935 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:02,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:02,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:02,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:02,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:02,936 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:02,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:02,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:02,937 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:02,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:02,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:03,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:03,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:03,003 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:03,004 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2019-09-10 02:48:03,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9750738/d96cfa59b9b845aa8d3280b70e155b05/FLAG5773dfef2 [2019-09-10 02:48:03,600 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:03,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2019-09-10 02:48:03,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9750738/d96cfa59b9b845aa8d3280b70e155b05/FLAG5773dfef2 [2019-09-10 02:48:03,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9750738/d96cfa59b9b845aa8d3280b70e155b05 [2019-09-10 02:48:03,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:03,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:03,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:03,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:03,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:03,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:03" (1/1) ... [2019-09-10 02:48:03,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18312eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:03, skipping insertion in model container [2019-09-10 02:48:03,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:03" (1/1) ... [2019-09-10 02:48:03,912 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:03,977 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:04,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:04,488 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:04,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:04,639 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:04,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04 WrapperNode [2019-09-10 02:48:04,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:04,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:04,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:04,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:04,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (1/1) ... [2019-09-10 02:48:04,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (1/1) ... [2019-09-10 02:48:04,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (1/1) ... [2019-09-10 02:48:04,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (1/1) ... [2019-09-10 02:48:04,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (1/1) ... [2019-09-10 02:48:04,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (1/1) ... [2019-09-10 02:48:04,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (1/1) ... [2019-09-10 02:48:04,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:04,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:04,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:04,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:04,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (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 [2019-09-10 02:48:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:48:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:48:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:48:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:48:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:48:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:48:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:48:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:48:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:48:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:48:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:48:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:48:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:48:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:05,871 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:05,871 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:05,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:05 BoogieIcfgContainer [2019-09-10 02:48:05,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:05,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:05,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:05,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:05,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:03" (1/3) ... [2019-09-10 02:48:05,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb77f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:05, skipping insertion in model container [2019-09-10 02:48:05,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:04" (2/3) ... [2019-09-10 02:48:05,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb77f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:05, skipping insertion in model container [2019-09-10 02:48:05,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:05" (3/3) ... [2019-09-10 02:48:05,882 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2019-09-10 02:48:05,893 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:05,902 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:05,919 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:05,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:05,948 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:05,948 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:05,949 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:05,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:05,949 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:05,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:05,949 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:05,971 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states. [2019-09-10 02:48:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:48:05,986 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:05,988 INFO L399 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] [2019-09-10 02:48:05,990 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:05,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:05,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1875422794, now seen corresponding path program 1 times [2019-09-10 02:48:05,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:06,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:06,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:06,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:06,045 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:06,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:06,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:06,308 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:06,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:06,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:06,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:06,335 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 2 states. [2019-09-10 02:48:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:06,380 INFO L93 Difference]: Finished difference Result 149 states and 174 transitions. [2019-09-10 02:48:06,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:06,382 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:48:06,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:06,396 INFO L225 Difference]: With dead ends: 149 [2019-09-10 02:48:06,396 INFO L226 Difference]: Without dead ends: 138 [2019-09-10 02:48:06,398 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-10 02:48:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-10 02:48:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-10 02:48:06,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2019-09-10 02:48:06,457 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 46 [2019-09-10 02:48:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:06,458 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2019-09-10 02:48:06,458 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2019-09-10 02:48:06,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:48:06,462 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:06,462 INFO L399 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] [2019-09-10 02:48:06,462 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:06,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:06,463 INFO L82 PathProgramCache]: Analyzing trace with hash -2108875382, now seen corresponding path program 1 times [2019-09-10 02:48:06,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:06,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:06,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:06,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:06,464 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:06,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:06,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:06,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:06,613 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:06,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:06,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:06,614 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2019-09-10 02:48:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:06,631 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2019-09-10 02:48:06,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:06,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:48:06,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:06,634 INFO L225 Difference]: With dead ends: 129 [2019-09-10 02:48:06,634 INFO L226 Difference]: Without dead ends: 129 [2019-09-10 02:48:06,635 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:06,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-10 02:48:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-10 02:48:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-10 02:48:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2019-09-10 02:48:06,658 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 47 [2019-09-10 02:48:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:06,658 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2019-09-10 02:48:06,658 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2019-09-10 02:48:06,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:06,660 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:06,660 INFO L399 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] [2019-09-10 02:48:06,661 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:06,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2135499519, now seen corresponding path program 1 times [2019-09-10 02:48:06,661 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:06,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:06,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:06,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:06,663 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:06,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:06,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:06,835 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:06,835 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:06,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:06,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:06,836 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 7 states. [2019-09-10 02:48:07,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:07,310 INFO L93 Difference]: Finished difference Result 284 states and 340 transitions. [2019-09-10 02:48:07,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:07,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:48:07,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:07,314 INFO L225 Difference]: With dead ends: 284 [2019-09-10 02:48:07,315 INFO L226 Difference]: Without dead ends: 284 [2019-09-10 02:48:07,315 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:48:07,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2019-09-10 02:48:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 272. [2019-09-10 02:48:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2019-09-10 02:48:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 328 transitions. [2019-09-10 02:48:07,368 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 328 transitions. Word has length 52 [2019-09-10 02:48:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:07,368 INFO L475 AbstractCegarLoop]: Abstraction has 272 states and 328 transitions. [2019-09-10 02:48:07,369 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 328 transitions. [2019-09-10 02:48:07,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:48:07,376 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:07,376 INFO L399 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] [2019-09-10 02:48:07,377 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:07,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:07,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1973278076, now seen corresponding path program 1 times [2019-09-10 02:48:07,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:07,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:07,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:07,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:07,385 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:07,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:07,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:07,601 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:07,602 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:07,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:07,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:07,603 INFO L87 Difference]: Start difference. First operand 272 states and 328 transitions. Second operand 6 states. [2019-09-10 02:48:07,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:07,812 INFO L93 Difference]: Finished difference Result 505 states and 612 transitions. [2019-09-10 02:48:07,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:07,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-10 02:48:07,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:07,817 INFO L225 Difference]: With dead ends: 505 [2019-09-10 02:48:07,817 INFO L226 Difference]: Without dead ends: 505 [2019-09-10 02:48:07,817 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:48:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2019-09-10 02:48:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 499. [2019-09-10 02:48:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2019-09-10 02:48:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 606 transitions. [2019-09-10 02:48:07,853 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 606 transitions. Word has length 57 [2019-09-10 02:48:07,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:07,857 INFO L475 AbstractCegarLoop]: Abstraction has 499 states and 606 transitions. [2019-09-10 02:48:07,857 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:07,857 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 606 transitions. [2019-09-10 02:48:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 02:48:07,861 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:07,861 INFO L399 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] [2019-09-10 02:48:07,862 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:07,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:07,863 INFO L82 PathProgramCache]: Analyzing trace with hash -820899264, now seen corresponding path program 1 times [2019-09-10 02:48:07,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:07,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:07,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:07,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:07,864 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:07,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:07,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:07,987 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:07,989 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:07,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:07,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:07,991 INFO L87 Difference]: Start difference. First operand 499 states and 606 transitions. Second operand 7 states. [2019-09-10 02:48:08,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:08,716 INFO L93 Difference]: Finished difference Result 827 states and 1050 transitions. [2019-09-10 02:48:08,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:48:08,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-10 02:48:08,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:08,723 INFO L225 Difference]: With dead ends: 827 [2019-09-10 02:48:08,744 INFO L226 Difference]: Without dead ends: 827 [2019-09-10 02:48:08,745 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:48:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-09-10 02:48:08,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 729. [2019-09-10 02:48:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2019-09-10 02:48:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 883 transitions. [2019-09-10 02:48:08,789 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 883 transitions. Word has length 61 [2019-09-10 02:48:08,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:08,790 INFO L475 AbstractCegarLoop]: Abstraction has 729 states and 883 transitions. [2019-09-10 02:48:08,790 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 883 transitions. [2019-09-10 02:48:08,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:48:08,795 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:08,795 INFO L399 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] [2019-09-10 02:48:08,795 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:08,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:08,796 INFO L82 PathProgramCache]: Analyzing trace with hash 16386475, now seen corresponding path program 1 times [2019-09-10 02:48:08,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:08,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:08,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:08,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:08,798 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:08,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:08,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:08,911 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:08,911 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:08,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:08,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:08,912 INFO L87 Difference]: Start difference. First operand 729 states and 883 transitions. Second operand 6 states. [2019-09-10 02:48:08,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:08,950 INFO L93 Difference]: Finished difference Result 749 states and 903 transitions. [2019-09-10 02:48:08,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:08,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-10 02:48:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:08,958 INFO L225 Difference]: With dead ends: 749 [2019-09-10 02:48:08,958 INFO L226 Difference]: Without dead ends: 749 [2019-09-10 02:48:08,959 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2019-09-10 02:48:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2019-09-10 02:48:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-09-10 02:48:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 903 transitions. [2019-09-10 02:48:08,993 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 903 transitions. Word has length 84 [2019-09-10 02:48:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:08,994 INFO L475 AbstractCegarLoop]: Abstraction has 749 states and 903 transitions. [2019-09-10 02:48:08,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 903 transitions. [2019-09-10 02:48:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:48:08,996 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:08,997 INFO L399 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] [2019-09-10 02:48:08,997 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:08,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:08,998 INFO L82 PathProgramCache]: Analyzing trace with hash 39018729, now seen corresponding path program 1 times [2019-09-10 02:48:08,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:08,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:08,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:08,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:08,999 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:09,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:09,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:48:09,105 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:09,105 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:48:09,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:48:09,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:09,107 INFO L87 Difference]: Start difference. First operand 749 states and 903 transitions. Second operand 8 states. [2019-09-10 02:48:09,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:09,157 INFO L93 Difference]: Finished difference Result 777 states and 931 transitions. [2019-09-10 02:48:09,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:09,158 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-09-10 02:48:09,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:09,162 INFO L225 Difference]: With dead ends: 777 [2019-09-10 02:48:09,162 INFO L226 Difference]: Without dead ends: 777 [2019-09-10 02:48:09,163 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2019-09-10 02:48:09,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 765. [2019-09-10 02:48:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2019-09-10 02:48:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 919 transitions. [2019-09-10 02:48:09,194 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 919 transitions. Word has length 84 [2019-09-10 02:48:09,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:09,194 INFO L475 AbstractCegarLoop]: Abstraction has 765 states and 919 transitions. [2019-09-10 02:48:09,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:48:09,195 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 919 transitions. [2019-09-10 02:48:09,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:48:09,197 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:09,197 INFO L399 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] [2019-09-10 02:48:09,197 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:09,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:09,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1064510728, now seen corresponding path program 1 times [2019-09-10 02:48:09,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:09,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:09,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:09,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:09,199 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:09,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:09,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:48:09,263 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:09,263 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:48:09,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:48:09,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:09,264 INFO L87 Difference]: Start difference. First operand 765 states and 919 transitions. Second operand 4 states. [2019-09-10 02:48:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:09,491 INFO L93 Difference]: Finished difference Result 1750 states and 2187 transitions. [2019-09-10 02:48:09,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:48:09,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-09-10 02:48:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:09,503 INFO L225 Difference]: With dead ends: 1750 [2019-09-10 02:48:09,503 INFO L226 Difference]: Without dead ends: 1750 [2019-09-10 02:48:09,504 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2019-09-10 02:48:09,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1719. [2019-09-10 02:48:09,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2019-09-10 02:48:09,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2115 transitions. [2019-09-10 02:48:09,622 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2115 transitions. Word has length 84 [2019-09-10 02:48:09,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:09,623 INFO L475 AbstractCegarLoop]: Abstraction has 1719 states and 2115 transitions. [2019-09-10 02:48:09,623 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:48:09,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2115 transitions. [2019-09-10 02:48:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-10 02:48:09,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:09,627 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:09,627 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:09,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:09,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1546821858, now seen corresponding path program 1 times [2019-09-10 02:48:09,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:09,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:09,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:09,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:09,632 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:48:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:48:10,554 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:48:10,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:10 BoogieIcfgContainer [2019-09-10 02:48:10,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:10,771 INFO L168 Benchmark]: Toolchain (without parser) took 6873.77 ms. Allocated memory was 133.2 MB in the beginning and 326.6 MB in the end (delta: 193.5 MB). Free memory was 87.8 MB in the beginning and 84.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 196.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:10,772 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:10,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.15 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.6 MB in the beginning and 163.8 MB in the end (delta: -76.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:10,777 INFO L168 Benchmark]: Boogie Preprocessor took 85.66 ms. Allocated memory is still 199.8 MB. Free memory was 163.8 MB in the beginning and 159.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:10,778 INFO L168 Benchmark]: RCFGBuilder took 1146.49 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 159.4 MB in the beginning and 190.7 MB in the end (delta: -31.4 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:10,785 INFO L168 Benchmark]: TraceAbstraction took 4893.37 ms. Allocated memory was 224.4 MB in the beginning and 326.6 MB in the end (delta: 102.2 MB). Free memory was 190.7 MB in the beginning and 84.9 MB in the end (delta: 105.8 MB). Peak memory consumption was 208.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:10,789 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.15 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.6 MB in the beginning and 163.8 MB in the end (delta: -76.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.66 ms. Allocated memory is still 199.8 MB. Free memory was 163.8 MB in the beginning and 159.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1146.49 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 159.4 MB in the beginning and 190.7 MB in the end (delta: -31.4 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4893.37 ms. Allocated memory was 224.4 MB in the beginning and 326.6 MB in the end (delta: 102.2 MB). Free memory was 190.7 MB in the beginning and 84.9 MB in the end (delta: 105.8 MB). Peak memory consumption was 208.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 383]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L458] int cleanupTimeShifts = 4; [L752] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int retValue_acc ; [L535] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L975] int retValue_acc ; [L978] retValue_acc = 1 [L979] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L541] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L541] tmp = valid_product() [L543] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L545] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L546] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] int splverifierCounter ; [L391] int tmp ; [L392] int tmp___0 ; [L393] int tmp___1 ; [L394] int tmp___2 ; [L397] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L399] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L401] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L407] tmp = __VERIFIER_nondet_int() [L409] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L411] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L417] tmp___0 = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L421] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(methaneLevelCritical)) [L81] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L421] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L427] tmp___2 = __VERIFIER_nondet_int() [L429] COND FALSE !(\read(tmp___2)) [L435] tmp___1 = __VERIFIER_nondet_int() [L437] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L446] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L166] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L173] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L175] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L221] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L239] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L195] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L198] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L318] int retValue_acc ; [L319] int tmp ; [L320] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L324] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L128] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(waterLevel < 2) [L135] retValue_acc = 0 [L136] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L324] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L324] tmp = isHighWaterSensorDry() [L326] COND FALSE !(\read(tmp)) [L329] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L331] retValue_acc = tmp___0 [L332] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L200] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] tmp = isHighWaterLevel() [L202] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L204] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L249] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L204] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L239] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L175] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L181] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L558] int tmp ; [L559] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L563] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L563] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L563] tmp = isMethaneLevelCritical() [L565] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L567] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L273] int retValue_acc ; [L276] retValue_acc = pumpRunning [L277] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L567] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L571] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L383] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 245 locations, 1 error locations. UNSAFE Result, 4.8s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1355 SDtfs, 747 SDslu, 3269 SDs, 0 SdLazy, 917 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1719occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 159 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 603 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 56641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...