/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:23:03,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:23:03,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:23:03,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:23:03,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:23:03,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:23:03,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:23:03,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:23:03,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:23:03,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:23:03,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:23:03,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:23:03,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:23:03,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:23:03,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:23:03,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:23:03,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:23:03,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:23:03,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:23:03,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:23:03,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:23:03,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:23:03,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:23:03,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:23:03,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:23:03,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:23:03,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:23:03,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:23:03,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:23:03,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:23:03,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:23:03,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:23:03,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:23:03,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:23:03,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:23:03,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:23:03,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:23:03,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:23:03,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:23:03,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:23:03,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:23:03,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:23:03,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:23:03,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:23:03,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:23:03,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:23:03,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:23:03,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:23:03,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:23:03,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:23:03,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:23:03,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:23:03,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:23:03,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:23:03,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:23:03,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:23:03,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:23:03,882 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:23:03,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:23:03,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:23:03,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:23:03,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:23:03,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:23:03,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:23:03,884 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:23:04,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:23:04,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:23:04,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:23:04,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:23:04,194 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:23:04,195 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2020-08-22 21:23:04,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9117007da/6558cb6db768440fab2a26101fc09d6c/FLAG1cbdbd73b [2020-08-22 21:23:04,760 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:23:04,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2020-08-22 21:23:04,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9117007da/6558cb6db768440fab2a26101fc09d6c/FLAG1cbdbd73b [2020-08-22 21:23:05,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9117007da/6558cb6db768440fab2a26101fc09d6c [2020-08-22 21:23:05,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:23:05,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:23:05,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:05,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:23:05,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:23:05,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05, skipping insertion in model container [2020-08-22 21:23:05,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:23:05,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:23:05,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:05,450 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:23:05,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:05,681 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:23:05,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05 WrapperNode [2020-08-22 21:23:05,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:05,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:23:05,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:23:05,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:23:05,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (1/1) ... [2020-08-22 21:23:05,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:23:05,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:23:05,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:23:05,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:23:05,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (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 [2020-08-22 21:23:05,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:23:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:23:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:23:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:23:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:23:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:23:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:23:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:23:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:23:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:23:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 21:23:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:23:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:23:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:23:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:23:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:23:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:23:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:23:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 21:23:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:23:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:23:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:23:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:23:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:23:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 21:23:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 21:23:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:23:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:23:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:23:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:23:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:23:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:23:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:23:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:23:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:23:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:23:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:23:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:23:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:23:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:23:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:23:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 21:23:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:23:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:23:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:23:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:23:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:23:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:23:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:23:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:23:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:23:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:23:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:23:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 21:23:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:23:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:23:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 21:23:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 21:23:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:23:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:23:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:23:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:23:06,936 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:23:06,936 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:23:06,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:06 BoogieIcfgContainer [2020-08-22 21:23:06,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:23:06,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:23:06,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:23:06,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:23:06,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:23:05" (1/3) ... [2020-08-22 21:23:06,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d31642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:06, skipping insertion in model container [2020-08-22 21:23:06,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:05" (2/3) ... [2020-08-22 21:23:06,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d31642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:06, skipping insertion in model container [2020-08-22 21:23:06,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:06" (3/3) ... [2020-08-22 21:23:06,951 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2020-08-22 21:23:06,961 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:23:06,969 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:23:06,983 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:23:07,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:23:07,005 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:23:07,005 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:23:07,006 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:23:07,006 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:23:07,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:23:07,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:23:07,007 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:23:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-08-22 21:23:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:23:07,048 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:07,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:07,050 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:07,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:07,055 INFO L82 PathProgramCache]: Analyzing trace with hash -502047938, now seen corresponding path program 1 times [2020-08-22 21:23:07,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:07,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652992792] [2020-08-22 21:23:07,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,729 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:23:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:23:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:23:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:07,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652992792] [2020-08-22 21:23:07,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:07,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:23:07,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938888780] [2020-08-22 21:23:07,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:23:07,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:07,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:23:07,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:23:07,980 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-08-22 21:23:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:09,268 INFO L93 Difference]: Finished difference Result 444 states and 527 transitions. [2020-08-22 21:23:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:23:09,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:23:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:09,288 INFO L225 Difference]: With dead ends: 444 [2020-08-22 21:23:09,288 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 21:23:09,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:23:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 21:23:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 239. [2020-08-22 21:23:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-08-22 21:23:09,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 257 transitions. [2020-08-22 21:23:09,418 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 257 transitions. Word has length 153 [2020-08-22 21:23:09,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:09,419 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 257 transitions. [2020-08-22 21:23:09,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:23:09,420 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 257 transitions. [2020-08-22 21:23:09,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:23:09,424 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:09,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:09,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:23:09,425 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:09,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:09,425 INFO L82 PathProgramCache]: Analyzing trace with hash -394974432, now seen corresponding path program 1 times [2020-08-22 21:23:09,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:09,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070520638] [2020-08-22 21:23:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,810 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:09,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:23:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:23:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:23:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:09,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070520638] [2020-08-22 21:23:09,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:09,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:23:09,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061028329] [2020-08-22 21:23:09,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:23:09,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:09,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:23:09,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:23:09,891 INFO L87 Difference]: Start difference. First operand 239 states and 257 transitions. Second operand 4 states. [2020-08-22 21:23:10,492 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:23:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:11,207 INFO L93 Difference]: Finished difference Result 357 states and 398 transitions. [2020-08-22 21:23:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:23:11,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:23:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:11,212 INFO L225 Difference]: With dead ends: 357 [2020-08-22 21:23:11,212 INFO L226 Difference]: Without dead ends: 262 [2020-08-22 21:23:11,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:23:11,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-08-22 21:23:11,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 229. [2020-08-22 21:23:11,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-08-22 21:23:11,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 244 transitions. [2020-08-22 21:23:11,297 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 244 transitions. Word has length 154 [2020-08-22 21:23:11,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:11,297 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 244 transitions. [2020-08-22 21:23:11,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:23:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 244 transitions. [2020-08-22 21:23:11,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 21:23:11,302 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:11,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:11,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:23:11,304 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:11,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:11,304 INFO L82 PathProgramCache]: Analyzing trace with hash 334647312, now seen corresponding path program 1 times [2020-08-22 21:23:11,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:11,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487307591] [2020-08-22 21:23:11,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,687 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:11,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:23:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:23:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 21:23:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 21:23:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:11,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487307591] [2020-08-22 21:23:11,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:11,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:23:11,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126804512] [2020-08-22 21:23:11,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:23:11,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:11,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:23:11,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:23:11,875 INFO L87 Difference]: Start difference. First operand 229 states and 244 transitions. Second operand 10 states. [2020-08-22 21:23:12,587 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:12,999 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:23:13,230 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:23:13,509 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:13,744 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:13,976 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:15,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:15,366 INFO L93 Difference]: Finished difference Result 403 states and 460 transitions. [2020-08-22 21:23:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:23:15,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 21:23:15,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:15,371 INFO L225 Difference]: With dead ends: 403 [2020-08-22 21:23:15,371 INFO L226 Difference]: Without dead ends: 284 [2020-08-22 21:23:15,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-08-22 21:23:15,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-08-22 21:23:15,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 229. [2020-08-22 21:23:15,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-08-22 21:23:15,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 243 transitions. [2020-08-22 21:23:15,439 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 243 transitions. Word has length 167 [2020-08-22 21:23:15,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:15,440 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 243 transitions. [2020-08-22 21:23:15,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:23:15,440 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 243 transitions. [2020-08-22 21:23:15,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-08-22 21:23:15,443 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:15,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:15,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:23:15,444 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:15,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:15,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1802535089, now seen corresponding path program 1 times [2020-08-22 21:23:15,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:15,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95501248] [2020-08-22 21:23:15,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,742 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:23:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:23:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:23:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-22 21:23:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 21:23:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 21:23:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:15,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95501248] [2020-08-22 21:23:15,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:15,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:23:15,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424256596] [2020-08-22 21:23:15,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:23:15,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:15,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:23:15,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:23:15,998 INFO L87 Difference]: Start difference. First operand 229 states and 243 transitions. Second operand 10 states. [2020-08-22 21:23:16,458 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:18,007 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:18,289 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:18,598 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:18,905 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:19,135 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:19,408 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:19,630 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:20,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:20,537 INFO L93 Difference]: Finished difference Result 625 states and 767 transitions. [2020-08-22 21:23:20,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 21:23:20,537 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-08-22 21:23:20,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:20,542 INFO L225 Difference]: With dead ends: 625 [2020-08-22 21:23:20,543 INFO L226 Difference]: Without dead ends: 506 [2020-08-22 21:23:20,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-08-22 21:23:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-08-22 21:23:20,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 340. [2020-08-22 21:23:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-08-22 21:23:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 371 transitions. [2020-08-22 21:23:20,653 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 371 transitions. Word has length 175 [2020-08-22 21:23:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:20,654 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 371 transitions. [2020-08-22 21:23:20,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:23:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 371 transitions. [2020-08-22 21:23:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-08-22 21:23:20,657 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:20,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:20,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:23:20,658 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:20,658 INFO L82 PathProgramCache]: Analyzing trace with hash -176390763, now seen corresponding path program 1 times [2020-08-22 21:23:20,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:20,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472988550] [2020-08-22 21:23:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,915 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:20,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-22 21:23:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 21:23:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:23:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:23:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:23:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:20,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 21:23:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:21,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 21:23:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:21,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 21:23:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:21,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472988550] [2020-08-22 21:23:21,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:21,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 21:23:21,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884340481] [2020-08-22 21:23:21,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 21:23:21,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:21,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 21:23:21,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:23:21,052 INFO L87 Difference]: Start difference. First operand 340 states and 371 transitions. Second operand 7 states. [2020-08-22 21:23:21,485 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:22,325 INFO L93 Difference]: Finished difference Result 562 states and 650 transitions. [2020-08-22 21:23:22,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:23:22,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-08-22 21:23:22,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:22,328 INFO L225 Difference]: With dead ends: 562 [2020-08-22 21:23:22,329 INFO L226 Difference]: Without dead ends: 332 [2020-08-22 21:23:22,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-08-22 21:23:22,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-08-22 21:23:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 266. [2020-08-22 21:23:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-08-22 21:23:22,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 281 transitions. [2020-08-22 21:23:22,400 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 281 transitions. Word has length 185 [2020-08-22 21:23:22,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:22,401 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 281 transitions. [2020-08-22 21:23:22,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 21:23:22,401 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 281 transitions. [2020-08-22 21:23:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-08-22 21:23:22,403 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:22,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:22,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:23:22,404 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:22,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:22,405 INFO L82 PathProgramCache]: Analyzing trace with hash 74620443, now seen corresponding path program 1 times [2020-08-22 21:23:22,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:22,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872776009] [2020-08-22 21:23:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:22,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:22,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:22,674 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:23:22,674 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:23:22,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:23:22,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:23:22 BoogieIcfgContainer [2020-08-22 21:23:22,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:23:22,915 INFO L168 Benchmark]: Toolchain (without parser) took 17813.14 ms. Allocated memory was 145.2 MB in the beginning and 556.8 MB in the end (delta: 411.6 MB). Free memory was 104.0 MB in the beginning and 188.9 MB in the end (delta: -84.9 MB). Peak memory consumption was 326.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:22,916 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:23:22,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.63 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 103.7 MB in the beginning and 175.3 MB in the end (delta: -71.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:22,918 INFO L168 Benchmark]: Boogie Preprocessor took 88.27 ms. Allocated memory is still 205.0 MB. Free memory was 175.3 MB in the beginning and 171.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:22,919 INFO L168 Benchmark]: RCFGBuilder took 1172.35 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 171.0 MB in the beginning and 175.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:22,920 INFO L168 Benchmark]: TraceAbstraction took 15968.97 ms. Allocated memory was 235.9 MB in the beginning and 556.8 MB in the end (delta: 320.9 MB). Free memory was 175.7 MB in the beginning and 188.9 MB in the end (delta: -13.2 MB). Peak memory consumption was 307.7 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:22,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 578.63 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 103.7 MB in the beginning and 175.3 MB in the end (delta: -71.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.27 ms. Allocated memory is still 205.0 MB. Free memory was 175.3 MB in the beginning and 171.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1172.35 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 171.0 MB in the beginning and 175.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15968.97 ms. Allocated memory was 235.9 MB in the beginning and 556.8 MB in the end (delta: 320.9 MB). Free memory was 175.7 MB in the beginning and 188.9 MB in the end (delta: -13.2 MB). Peak memory consumption was 307.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 643]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=140, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=136, cleanupTimeShifts=4, head={176:162}, methaneLevelCritical=140, pumpRunning=133, systemActive=132, waterLevel=136] [L184] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=140, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=136, cleanupTimeShifts=4, head={176:162}, methaneLevelCritical=140, pumpRunning=133, systemActive=132, waterLevel=1] [L185] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=140, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=136, cleanupTimeShifts=4, head={176:162}, methaneLevelCritical=0, pumpRunning=133, systemActive=132, waterLevel=1] [L442] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=140, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=133, systemActive=132, waterLevel=1] [L652] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=140, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=132, waterLevel=1] [L653] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=140, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L170] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L173] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L174] 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] [L128] 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] [L128] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L832] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L833] 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] [L834] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L836] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] 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] [L841] 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] [L843] 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] [L849] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L851] 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] [L853] 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] [L202] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L203] 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] [L853] 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] [L859] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L861] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L869] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L871] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L873] CALL startSystem() 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] [L826] systemActive = 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] [L873] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L886] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L660] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L689] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L707] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L675] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L900] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L223] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L226] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L227] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L905] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L907] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L911] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L255] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L258] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L259] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L911] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L911] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L913] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L915] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L759] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L762] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L763] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L915] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L915] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L917] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L921] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 622 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1055 SDtfs, 1932 SDslu, 1367 SDs, 0 SdLazy, 2719 SolverSat, 579 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 360 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1014 NumberOfCodeBlocks, 1014 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 829 ConstructedInterpolants, 0 QuantifiedInterpolants, 335442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...