/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:19:57,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 15:19:57,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 15:19:57,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 15:19:57,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 15:19:57,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 15:19:57,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 15:19:57,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 15:19:57,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 15:19:57,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 15:19:57,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 15:19:57,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 15:19:57,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:19:57,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:19:57,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:19:57,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:19:57,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:19:57,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:19:57,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:19:57,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:19:57,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:19:57,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:19:57,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:19:57,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:19:57,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 15:19:57,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 15:19:57,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 15:19:57,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 15:19:57,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 15:19:57,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 15:19:57,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 15:19:57,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 15:19:57,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 15:19:57,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 15:19:57,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 15:19:57,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 15:19:57,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 15:19:57,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 15:19:57,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:19:57,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:19:57,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:19:57,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 15:19:57,921 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:19:57,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:19:57,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:19:57,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:19:57,923 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:19:57,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:19:57,924 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:19:57,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:19:57,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:19:57,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:19:57,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:19:57,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:19:57,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:19:57,926 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:19:57,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:19:57,926 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:19:57,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:19:57,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:19:57,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:19:57,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:19:57,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:19:57,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:19:57,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:19:57,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:19:57,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:19:57,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:19:57,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:19:57,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:19:57,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:19:57,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-18 15:19:58,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:19:58,239 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:19:58,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:19:58,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:19:58,243 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:19:58,244 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-08-18 15:19:58,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f93b0eee2/6cabc03de54a4d318b64f21a5cd06044/FLAG4de08500c [2020-08-18 15:19:58,725 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:19:58,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-08-18 15:19:58,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f93b0eee2/6cabc03de54a4d318b64f21a5cd06044/FLAG4de08500c [2020-08-18 15:19:59,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f93b0eee2/6cabc03de54a4d318b64f21a5cd06044 [2020-08-18 15:19:59,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:19:59,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:19:59,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:19:59,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:19:59,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:19:59,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a4d3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59, skipping insertion in model container [2020-08-18 15:19:59,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:19:59,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:19:59,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:19:59,722 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:19:59,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:19:59,858 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:19:59,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59 WrapperNode [2020-08-18 15:19:59,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:19:59,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:19:59,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:19:59,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:19:59,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... [2020-08-18 15:19:59,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:19:59,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:19:59,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:19:59,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:19:59,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:20:00,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:20:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:20:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 15:20:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 15:20:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 15:20:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-18 15:20:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 15:20:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 15:20:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 15:20:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 15:20:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 15:20:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 15:20:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 15:20:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 15:20:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 15:20:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 15:20:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 15:20:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 15:20:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 15:20:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 15:20:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 15:20:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 15:20:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 15:20:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 15:20:00,015 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 15:20:00,015 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 15:20:00,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 15:20:00,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 15:20:00,015 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 15:20:00,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:20:00,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-18 15:20:00,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 15:20:00,016 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 15:20:00,016 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 15:20:00,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 15:20:00,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 15:20:00,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 15:20:00,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 15:20:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:20:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 15:20:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 15:20:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 15:20:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 15:20:00,017 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 15:20:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 15:20:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 15:20:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 15:20:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 15:20:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 15:20:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 15:20:00,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-18 15:20:00,019 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 15:20:00,019 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 15:20:00,019 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 15:20:00,019 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-18 15:20:00,019 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 15:20:00,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 15:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 15:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 15:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 15:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 15:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 15:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 15:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 15:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 15:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 15:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 15:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 15:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 15:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 15:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 15:20:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 15:20:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 15:20:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 15:20:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 15:20:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 15:20:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 15:20:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 15:20:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 15:20:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 15:20:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 15:20:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 15:20:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 15:20:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 15:20:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 15:20:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:20:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 15:20:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:20:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 15:20:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:20:01,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:20:01,178 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 15:20:01,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:20:01 BoogieIcfgContainer [2020-08-18 15:20:01,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:20:01,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:20:01,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:20:01,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:20:01,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:19:59" (1/3) ... [2020-08-18 15:20:01,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661f3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:20:01, skipping insertion in model container [2020-08-18 15:20:01,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:59" (2/3) ... [2020-08-18 15:20:01,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661f3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:20:01, skipping insertion in model container [2020-08-18 15:20:01,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:20:01" (3/3) ... [2020-08-18 15:20:01,191 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product21.cil.c [2020-08-18 15:20:01,201 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:20:01,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:20:01,221 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:20:01,243 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:20:01,243 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:20:01,243 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:20:01,243 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:20:01,244 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:20:01,244 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:20:01,244 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:20:01,244 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:20:01,262 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-08-18 15:20:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-18 15:20:01,271 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:20:01,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:20:01,273 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:20:01,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:20:01,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1715391972, now seen corresponding path program 1 times [2020-08-18 15:20:01,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:20:01,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105434173] [2020-08-18 15:20:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:20:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:01,930 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:20:01,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:20:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:01,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:20:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:01,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:20:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:01,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:20:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:02,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:20:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 15:20:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:02,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 15:20:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:20:02,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105434173] [2020-08-18 15:20:02,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:20:02,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 15:20:02,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490888516] [2020-08-18 15:20:02,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 15:20:02,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:20:02,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 15:20:02,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 15:20:02,069 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 3 states. [2020-08-18 15:20:03,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:20:03,130 INFO L93 Difference]: Finished difference Result 285 states and 374 transitions. [2020-08-18 15:20:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 15:20:03,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-18 15:20:03,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:20:03,147 INFO L225 Difference]: With dead ends: 285 [2020-08-18 15:20:03,147 INFO L226 Difference]: Without dead ends: 154 [2020-08-18 15:20:03,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 15:20:03,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-08-18 15:20:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 122. [2020-08-18 15:20:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-08-18 15:20:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-08-18 15:20:03,261 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 46 [2020-08-18 15:20:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:20:03,262 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-08-18 15:20:03,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 15:20:03,262 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-08-18 15:20:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-18 15:20:03,269 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:20:03,269 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] [2020-08-18 15:20:03,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:20:03,270 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:20:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:20:03,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1451016252, now seen corresponding path program 1 times [2020-08-18 15:20:03,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:20:03,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186064927] [2020-08-18 15:20:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:20:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,610 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:20:03,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:20:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:20:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:20:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:20:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:20:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 15:20:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 15:20:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:20:03,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186064927] [2020-08-18 15:20:03,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:20:03,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 15:20:03,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991224248] [2020-08-18 15:20:03,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 15:20:03,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:20:03,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 15:20:03,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 15:20:03,657 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 4 states. [2020-08-18 15:20:04,040 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:20:04,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:20:04,763 INFO L93 Difference]: Finished difference Result 218 states and 265 transitions. [2020-08-18 15:20:04,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 15:20:04,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-18 15:20:04,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:20:04,771 INFO L225 Difference]: With dead ends: 218 [2020-08-18 15:20:04,771 INFO L226 Difference]: Without dead ends: 138 [2020-08-18 15:20:04,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:20:04,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-08-18 15:20:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 113. [2020-08-18 15:20:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-08-18 15:20:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2020-08-18 15:20:04,807 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 47 [2020-08-18 15:20:04,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:20:04,808 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2020-08-18 15:20:04,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 15:20:04,808 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2020-08-18 15:20:04,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 15:20:04,810 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:20:04,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:20:04,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 15:20:04,811 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:20:04,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:20:04,811 INFO L82 PathProgramCache]: Analyzing trace with hash 880823031, now seen corresponding path program 1 times [2020-08-18 15:20:04,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:20:04,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375784725] [2020-08-18 15:20:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:20:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,128 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:20:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:20:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:20:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:20:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:20:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:20:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 15:20:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 15:20:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:05,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:20:05,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375784725] [2020-08-18 15:20:05,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:20:05,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 15:20:05,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943232918] [2020-08-18 15:20:05,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:20:05,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:20:05,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:20:05,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:20:05,226 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 8 states. [2020-08-18 15:20:05,568 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:20:05,864 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:06,148 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:06,374 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:20:07,393 INFO L93 Difference]: Finished difference Result 227 states and 279 transitions. [2020-08-18 15:20:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 15:20:07,397 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-18 15:20:07,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:20:07,399 INFO L225 Difference]: With dead ends: 227 [2020-08-18 15:20:07,399 INFO L226 Difference]: Without dead ends: 138 [2020-08-18 15:20:07,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:20:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-08-18 15:20:07,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 113. [2020-08-18 15:20:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-08-18 15:20:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2020-08-18 15:20:07,433 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 51 [2020-08-18 15:20:07,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:20:07,434 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2020-08-18 15:20:07,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:20:07,434 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2020-08-18 15:20:07,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 15:20:07,436 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:20:07,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:20:07,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 15:20:07,437 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:20:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:20:07,437 INFO L82 PathProgramCache]: Analyzing trace with hash 2056665484, now seen corresponding path program 1 times [2020-08-18 15:20:07,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:20:07,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000490058] [2020-08-18 15:20:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:20:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,731 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:20:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:20:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:20:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:20:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:20:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:20:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 15:20:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 15:20:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 15:20:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:20:07,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000490058] [2020-08-18 15:20:07,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:20:07,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 15:20:07,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256894885] [2020-08-18 15:20:07,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 15:20:07,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:20:07,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 15:20:07,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:20:07,831 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 12 states. [2020-08-18 15:20:08,213 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:20:08,562 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:08,805 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:09,028 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:09,546 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:20:10,663 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:11,052 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 15:20:11,315 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 15:20:11,563 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 15:20:11,802 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:20:12,128 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 15:20:12,396 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 15:20:12,665 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:20:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:20:13,677 INFO L93 Difference]: Finished difference Result 438 states and 579 transitions. [2020-08-18 15:20:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 15:20:13,678 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2020-08-18 15:20:13,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:20:13,684 INFO L225 Difference]: With dead ends: 438 [2020-08-18 15:20:13,684 INFO L226 Difference]: Without dead ends: 349 [2020-08-18 15:20:13,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-18 15:20:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-08-18 15:20:13,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 280. [2020-08-18 15:20:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-18 15:20:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 334 transitions. [2020-08-18 15:20:13,761 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 334 transitions. Word has length 64 [2020-08-18 15:20:13,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:20:13,761 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 334 transitions. [2020-08-18 15:20:13,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 15:20:13,762 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 334 transitions. [2020-08-18 15:20:13,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-08-18 15:20:13,764 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:20:13,764 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] [2020-08-18 15:20:13,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 15:20:13,765 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:20:13,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:20:13,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2113576122, now seen corresponding path program 1 times [2020-08-18 15:20:13,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:20:13,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452912124] [2020-08-18 15:20:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:20:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,010 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:20:14,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:20:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:20:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:20:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:20:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:20:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 15:20:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 15:20:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 15:20:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-18 15:20:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:20:14,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452912124] [2020-08-18 15:20:14,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:20:14,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 15:20:14,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502740528] [2020-08-18 15:20:14,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 15:20:14,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:20:14,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 15:20:14,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:20:14,134 INFO L87 Difference]: Start difference. First operand 280 states and 334 transitions. Second operand 6 states. [2020-08-18 15:20:14,418 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:20:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:20:14,913 INFO L93 Difference]: Finished difference Result 434 states and 537 transitions. [2020-08-18 15:20:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 15:20:14,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-08-18 15:20:14,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:20:14,919 INFO L225 Difference]: With dead ends: 434 [2020-08-18 15:20:14,919 INFO L226 Difference]: Without dead ends: 178 [2020-08-18 15:20:14,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:20:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-08-18 15:20:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 166. [2020-08-18 15:20:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-08-18 15:20:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 183 transitions. [2020-08-18 15:20:14,958 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 183 transitions. Word has length 68 [2020-08-18 15:20:14,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:20:14,958 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 183 transitions. [2020-08-18 15:20:14,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 15:20:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 183 transitions. [2020-08-18 15:20:14,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-08-18 15:20:14,960 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:20:14,960 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:20:14,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 15:20:14,961 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:20:14,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:20:14,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1672476349, now seen corresponding path program 1 times [2020-08-18 15:20:14,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:20:14,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805099139] [2020-08-18 15:20:14,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:20:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,286 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:20:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:20:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:20:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:20:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:20:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:20:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 15:20:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 15:20:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 15:20:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:20:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 15:20:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 15:20:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:20:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 15:20:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 15:20:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:20:15,457 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-18 15:20:15,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805099139] [2020-08-18 15:20:15,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:20:15,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 15:20:15,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746114518] [2020-08-18 15:20:15,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 15:20:15,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:20:15,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 15:20:15,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 15:20:15,460 INFO L87 Difference]: Start difference. First operand 166 states and 183 transitions. Second operand 10 states. [2020-08-18 15:20:15,979 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-18 15:20:16,485 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:20:17,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:20:17,048 INFO L93 Difference]: Finished difference Result 223 states and 254 transitions. [2020-08-18 15:20:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 15:20:17,049 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 108 [2020-08-18 15:20:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:20:17,050 INFO L225 Difference]: With dead ends: 223 [2020-08-18 15:20:17,050 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 15:20:17,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-08-18 15:20:17,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 15:20:17,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 15:20:17,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 15:20:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 15:20:17,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2020-08-18 15:20:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:20:17,053 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 15:20:17,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 15:20:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 15:20:17,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 15:20:17,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 15:20:17,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 15:20:19,555 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-18 15:20:19,898 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-18 15:20:20,510 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-18 15:20:20,973 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 22 [2020-08-18 15:20:21,189 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-18 15:20:21,866 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-18 15:20:22,049 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-18 15:20:22,254 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:20:22,598 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-18 15:20:22,824 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-18 15:20:23,418 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 24 [2020-08-18 15:20:24,088 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 19 [2020-08-18 15:20:24,670 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 21 [2020-08-18 15:20:25,341 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 19 [2020-08-18 15:20:25,508 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-08-18 15:20:26,049 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 22 [2020-08-18 15:20:26,438 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-18 15:20:26,831 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-18 15:20:27,246 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-18 15:20:27,587 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-08-18 15:20:28,135 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-08-18 15:20:28,493 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-08-18 15:20:28,527 INFO L268 CegarLoopResult]: For program point L383(line 383) no Hoare annotation was computed. [2020-08-18 15:20:28,528 INFO L268 CegarLoopResult]: For program point L382-2(lines 382 403) no Hoare annotation was computed. [2020-08-18 15:20:28,528 INFO L268 CegarLoopResult]: For program point L404(lines 381 405) no Hoare annotation was computed. [2020-08-18 15:20:28,528 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 357 412) no Hoare annotation was computed. [2020-08-18 15:20:28,528 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 357 412) no Hoare annotation was computed. [2020-08-18 15:20:28,528 INFO L268 CegarLoopResult]: For program point L388(lines 388 392) no Hoare annotation was computed. [2020-08-18 15:20:28,529 INFO L268 CegarLoopResult]: For program point L388-1(lines 388 392) no Hoare annotation was computed. [2020-08-18 15:20:28,529 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 357 412) no Hoare annotation was computed. [2020-08-18 15:20:28,529 INFO L268 CegarLoopResult]: For program point L445(lines 445 449) no Hoare annotation was computed. [2020-08-18 15:20:28,529 INFO L268 CegarLoopResult]: For program point L445-1(lines 445 449) no Hoare annotation was computed. [2020-08-18 15:20:28,529 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 413 472) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L268 CegarLoopResult]: For program point L439-2(lines 439 464) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L268 CegarLoopResult]: For program point L465(lines 438 466) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 413 472) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 413 472) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L268 CegarLoopResult]: For program point L458-1(line 458) no Hoare annotation was computed. [2020-08-18 15:20:28,530 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 692 698) the Hoare annotation is: true [2020-08-18 15:20:28,531 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 692 698) no Hoare annotation was computed. [2020-08-18 15:20:28,531 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 699 707) no Hoare annotation was computed. [2020-08-18 15:20:28,531 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 699 707) the Hoare annotation is: true [2020-08-18 15:20:28,531 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 699 707) no Hoare annotation was computed. [2020-08-18 15:20:28,531 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 806 830) the Hoare annotation is: true [2020-08-18 15:20:28,531 INFO L264 CegarLoopResult]: At program point L820(line 820) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,532 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 806 830) no Hoare annotation was computed. [2020-08-18 15:20:28,532 INFO L268 CegarLoopResult]: For program point L818(lines 818 824) no Hoare annotation was computed. [2020-08-18 15:20:28,532 INFO L264 CegarLoopResult]: At program point L816(line 816) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,532 INFO L268 CegarLoopResult]: For program point L816-1(line 816) no Hoare annotation was computed. [2020-08-18 15:20:28,532 INFO L268 CegarLoopResult]: For program point L814(lines 814 827) no Hoare annotation was computed. [2020-08-18 15:20:28,532 INFO L268 CegarLoopResult]: For program point L814-1(lines 806 830) no Hoare annotation was computed. [2020-08-18 15:20:28,532 INFO L271 CegarLoopResult]: At program point L812(line 812) the Hoare annotation is: true [2020-08-18 15:20:28,533 INFO L268 CegarLoopResult]: For program point L812-1(line 812) no Hoare annotation was computed. [2020-08-18 15:20:28,533 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 781 803) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-18 15:20:28,533 INFO L264 CegarLoopResult]: At program point L793(line 793) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~7 ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-18 15:20:28,533 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 781 803) no Hoare annotation was computed. [2020-08-18 15:20:28,533 INFO L264 CegarLoopResult]: At program point L793-1(line 793) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~7 ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-18 15:20:28,533 INFO L268 CegarLoopResult]: For program point L791(lines 791 798) no Hoare annotation was computed. [2020-08-18 15:20:28,534 INFO L268 CegarLoopResult]: For program point L791-1(lines 791 798) no Hoare annotation was computed. [2020-08-18 15:20:28,534 INFO L268 CegarLoopResult]: For program point L789(line 789) no Hoare annotation was computed. [2020-08-18 15:20:28,534 INFO L264 CegarLoopResult]: At program point L788(line 788) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-18 15:20:28,534 INFO L264 CegarLoopResult]: At program point L787(line 787) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-18 15:20:28,534 INFO L264 CegarLoopResult]: At program point L787-1(line 787) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-18 15:20:28,534 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 781 803) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 740 763) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 740 763) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 740 763) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L758(line 758) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L757(line 757) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L756(line 756) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L755(line 755) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L754(line 754) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L753(line 753) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L752(line 752) no Hoare annotation was computed. [2020-08-18 15:20:28,535 INFO L268 CegarLoopResult]: For program point L751(line 751) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point L750(line 750) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point L749(line 749) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point L748(line 748) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point L747(line 747) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point L746(line 746) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point L745(line 745) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 163 171) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 163 171) the Hoare annotation is: true [2020-08-18 15:20:28,536 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 163 171) no Hoare annotation was computed. [2020-08-18 15:20:28,536 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 208 226) the Hoare annotation is: true [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L217(lines 217 221) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L271 CegarLoopResult]: At program point L215(line 215) the Hoare annotation is: true [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L217-2(lines 217 221) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L215-1(line 215) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 208 226) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 208 226) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L191(lines 191 199) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L191-2(lines 191 199) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L179(lines 179 187) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L179-2(lines 179 187) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 172 207) no Hoare annotation was computed. [2020-08-18 15:20:28,537 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point L202-1(line 202) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 172 207) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 172 207) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 685 691) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 685 691) the Hoare annotation is: true [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 311 356) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 311 356) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 311 356) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point L638(lines 638 658) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point L638-1(lines 638 658) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 624 669) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 624 669) no Hoare annotation was computed. [2020-08-18 15:20:28,538 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 624 669) no Hoare annotation was computed. [2020-08-18 15:20:28,539 INFO L268 CegarLoopResult]: For program point L644(lines 644 651) no Hoare annotation was computed. [2020-08-18 15:20:28,539 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 771 780) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-18 15:20:28,539 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 771 780) no Hoare annotation was computed. [2020-08-18 15:20:28,539 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 771 780) no Hoare annotation was computed. [2020-08-18 15:20:28,539 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 152 162) the Hoare annotation is: true [2020-08-18 15:20:28,539 INFO L271 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: true [2020-08-18 15:20:28,539 INFO L268 CegarLoopResult]: For program point L157-1(line 157) no Hoare annotation was computed. [2020-08-18 15:20:28,539 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 152 162) no Hoare annotation was computed. [2020-08-18 15:20:28,540 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 152 162) no Hoare annotation was computed. [2020-08-18 15:20:28,540 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 144 151) the Hoare annotation is: true [2020-08-18 15:20:28,540 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 144 151) no Hoare annotation was computed. [2020-08-18 15:20:28,540 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 144 151) no Hoare annotation was computed. [2020-08-18 15:20:28,540 INFO L268 CegarLoopResult]: For program point L130-1(lines 111 135) no Hoare annotation was computed. [2020-08-18 15:20:28,540 INFO L264 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,540 INFO L264 CegarLoopResult]: At program point L121(line 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,540 INFO L268 CegarLoopResult]: For program point L119(lines 119 127) no Hoare annotation was computed. [2020-08-18 15:20:28,540 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 111 135) no Hoare annotation was computed. [2020-08-18 15:20:28,540 INFO L264 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,541 INFO L268 CegarLoopResult]: For program point L117-1(line 117) no Hoare annotation was computed. [2020-08-18 15:20:28,541 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 111 135) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 15:20:28,541 INFO L268 CegarLoopResult]: For program point L115(lines 115 132) no Hoare annotation was computed. [2020-08-18 15:20:28,541 INFO L264 CegarLoopResult]: At program point L130(line 130) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 15:20:28,541 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 77 83) no Hoare annotation was computed. [2020-08-18 15:20:28,541 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 77 83) the Hoare annotation is: true [2020-08-18 15:20:28,541 INFO L264 CegarLoopResult]: At program point testENTRY(lines 231 294) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) [2020-08-18 15:20:28,542 INFO L264 CegarLoopResult]: At program point L287(lines 240 288) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0))) [2020-08-18 15:20:28,542 INFO L268 CegarLoopResult]: For program point testFINAL(lines 231 294) no Hoare annotation was computed. [2020-08-18 15:20:28,542 INFO L268 CegarLoopResult]: For program point L277(lines 277 281) no Hoare annotation was computed. [2020-08-18 15:20:28,542 INFO L264 CegarLoopResult]: At program point L277-2(lines 271 282) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-18 15:20:28,542 INFO L268 CegarLoopResult]: For program point L242(lines 241 286) no Hoare annotation was computed. [2020-08-18 15:20:28,542 INFO L268 CegarLoopResult]: For program point L271(lines 271 282) no Hoare annotation was computed. [2020-08-18 15:20:28,542 INFO L264 CegarLoopResult]: At program point L263(line 263) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-18 15:20:28,542 INFO L268 CegarLoopResult]: For program point L261(lines 261 267) no Hoare annotation was computed. [2020-08-18 15:20:28,542 INFO L268 CegarLoopResult]: For program point L261-1(lines 261 267) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L264 CegarLoopResult]: At program point L253(line 253) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-18 15:20:28,543 INFO L264 CegarLoopResult]: At program point L284(lines 241 286) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 1 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1))) [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point L251(lines 251 257) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point L251-1(lines 251 257) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point L243(lines 243 247) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point testEXIT(lines 231 294) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 578 623) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point L598(lines 598 605) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 578 623) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 578 623) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point L592(lines 592 612) no Hoare annotation was computed. [2020-08-18 15:20:28,543 INFO L268 CegarLoopResult]: For program point L592-1(lines 592 612) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 911 919) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 911 919) the Hoare annotation is: true [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 911 919) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 879 901) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point L887(lines 887 895) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 879 901) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point L887-2(lines 887 895) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 879 901) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point L545(lines 523 546) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 475 577) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point L504(lines 504 520) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point L564(lines 564 571) no Hoare annotation was computed. [2020-08-18 15:20:28,544 INFO L268 CegarLoopResult]: For program point L525(lines 524 544) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L556-1(line 556) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L521(lines 521 562) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 475 577) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L540-1(line 540) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L499(lines 499 503) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L563(lines 563 574) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 475 577) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L526(lines 526 530) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point L524-2(lines 524 544) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 675 684) no Hoare annotation was computed. [2020-08-18 15:20:28,545 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 675 684) no Hoare annotation was computed. [2020-08-18 15:20:28,546 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 675 684) no Hoare annotation was computed. [2020-08-18 15:20:28,546 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:20:28,546 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string47.offset| |old(#t~string47.offset)|) (= |old(#length)| |#length|) (= |#t~string72.base| |old(#t~string72.base)|) (= |#t~string12.offset| |old(#t~string12.offset)|) (= |#t~string56.base| |old(#t~string56.base)|) (= |#t~string70.base| |old(#t~string70.base)|) (= |old(#valid)| |#valid|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |#t~string66.offset| |old(#t~string66.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string14.offset| |old(#t~string14.offset)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string55.base| |old(#t~string55.base)|) (= |#t~string52.offset| |old(#t~string52.offset)|) (= |#t~string46.base| |old(#t~string46.base)|) (= |#t~string64.base| |old(#t~string64.base)|) (= |#t~string53.base| |old(#t~string53.base)|) (= ~systemActive~0 |old(~systemActive~0)|) (= |#t~string51.base| |old(#t~string51.base)|) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (= |#t~string42.base| |old(#t~string42.base)|) (= |#t~string51.offset| |old(#t~string51.offset)|) (= |#t~string53.offset| |old(#t~string53.offset)|) (= ~head~0.offset |old(~head~0.offset)|) (= |#t~string16.offset| |old(#t~string16.offset)|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string66.base| |old(#t~string66.base)|) (= |#t~string56.offset| |old(#t~string56.offset)|) (= |#t~string12.base| |old(#t~string12.base)|) (= |#t~string68.offset| |old(#t~string68.offset)|) (= |#t~string54.offset| |old(#t~string54.offset)|) (= |#t~string64.offset| |old(#t~string64.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#t~string52.base| |old(#t~string52.base)|) (= |#t~string43.offset| |old(#t~string43.offset)|) (= |#t~string10.offset| |old(#t~string10.offset)|) (= |#t~string10.base| |old(#t~string10.base)|) (= |#t~string45.base| |old(#t~string45.base)|) (= |#t~string68.base| |old(#t~string68.base)|) (= |#t~string54.base| |old(#t~string54.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#t~string42.offset| |old(#t~string42.offset)|) (= |#t~string45.offset| |old(#t~string45.offset)|) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |#t~string18.offset| |old(#t~string18.offset)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string43.base| |old(#t~string43.base)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string14.base| |old(#t~string14.base)|) (= |#t~string70.offset| |old(#t~string70.offset)|) (= |#t~string46.offset| |old(#t~string46.offset)|) (= |#t~string16.base| |old(#t~string16.base)|) (= |#t~string18.base| |old(#t~string18.base)|) (= |#t~string55.offset| |old(#t~string55.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |#t~string72.offset| |old(#t~string72.offset)|) (= |#t~string47.base| |old(#t~string47.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-08-18 15:20:28,546 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:20:28,546 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 136 143) no Hoare annotation was computed. [2020-08-18 15:20:28,546 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 136 143) no Hoare annotation was computed. [2020-08-18 15:20:28,546 INFO L268 CegarLoopResult]: For program point activatePumpENTRY(lines 136 143) no Hoare annotation was computed. [2020-08-18 15:20:28,546 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 902 910) the Hoare annotation is: true [2020-08-18 15:20:28,546 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 902 910) no Hoare annotation was computed. [2020-08-18 15:20:28,547 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 902 910) no Hoare annotation was computed. [2020-08-18 15:20:28,547 INFO L268 CegarLoopResult]: For program point L862-1(lines 858 869) no Hoare annotation was computed. [2020-08-18 15:20:28,547 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 858 869) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2020-08-18 15:20:28,547 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 858 869) no Hoare annotation was computed. [2020-08-18 15:20:28,547 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:20:28,547 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-08-18 15:20:28,547 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:20:28,547 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 870 878) the Hoare annotation is: true [2020-08-18 15:20:28,548 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 870 878) no Hoare annotation was computed. [2020-08-18 15:20:28,548 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 870 878) no Hoare annotation was computed. [2020-08-18 15:20:28,548 INFO L264 CegarLoopResult]: At program point L64(lines 64 70) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2020-08-18 15:20:28,548 INFO L264 CegarLoopResult]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1))) [2020-08-18 15:20:28,548 INFO L268 CegarLoopResult]: For program point L57(lines 56 75) no Hoare annotation was computed. [2020-08-18 15:20:28,548 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 53 76) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2020-08-18 15:20:28,548 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 53 76) no Hoare annotation was computed. [2020-08-18 15:20:28,549 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 53 76) no Hoare annotation was computed. [2020-08-18 15:20:28,549 INFO L264 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2020-08-18 15:20:28,549 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 710 739) no Hoare annotation was computed. [2020-08-18 15:20:28,549 INFO L271 CegarLoopResult]: At program point L735(lines 710 739) the Hoare annotation is: true [2020-08-18 15:20:28,549 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 710 739) the Hoare annotation is: true [2020-08-18 15:20:28,549 INFO L268 CegarLoopResult]: For program point L731(line 731) no Hoare annotation was computed. [2020-08-18 15:20:28,549 INFO L268 CegarLoopResult]: For program point L724(lines 724 728) no Hoare annotation was computed. [2020-08-18 15:20:28,549 INFO L271 CegarLoopResult]: At program point L724-1(lines 724 728) the Hoare annotation is: true [2020-08-18 15:20:28,550 INFO L268 CegarLoopResult]: For program point L721(line 721) no Hoare annotation was computed. [2020-08-18 15:20:28,550 INFO L271 CegarLoopResult]: At program point L720-2(lines 720 734) the Hoare annotation is: true [2020-08-18 15:20:28,550 INFO L271 CegarLoopResult]: At program point L716(line 716) the Hoare annotation is: true [2020-08-18 15:20:28,550 INFO L268 CegarLoopResult]: For program point L716-1(line 716) no Hoare annotation was computed. [2020-08-18 15:20:28,550 INFO L271 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 834 845) the Hoare annotation is: true [2020-08-18 15:20:28,550 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 834 845) no Hoare annotation was computed. [2020-08-18 15:20:28,550 INFO L268 CegarLoopResult]: For program point L838-1(lines 834 845) no Hoare annotation was computed. [2020-08-18 15:20:28,550 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 764 770) no Hoare annotation was computed. [2020-08-18 15:20:28,550 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 764 770) the Hoare annotation is: true [2020-08-18 15:20:28,551 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:20:28,551 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-08-18 15:20:28,551 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 15:20:28,551 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:20:28,551 INFO L268 CegarLoopResult]: For program point L850-1(lines 846 857) no Hoare annotation was computed. [2020-08-18 15:20:28,551 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 846 857) no Hoare annotation was computed. [2020-08-18 15:20:28,551 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 846 857) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2))) [2020-08-18 15:20:28,552 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 296 303) no Hoare annotation was computed. [2020-08-18 15:20:28,552 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 300) no Hoare annotation was computed. [2020-08-18 15:20:28,552 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 296 303) the Hoare annotation is: true [2020-08-18 15:20:28,552 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 296 303) no Hoare annotation was computed. [2020-08-18 15:20:28,552 INFO L264 CegarLoopResult]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,552 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 85 109) no Hoare annotation was computed. [2020-08-18 15:20:28,552 INFO L268 CegarLoopResult]: For program point L93(lines 93 101) no Hoare annotation was computed. [2020-08-18 15:20:28,553 INFO L264 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,553 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 85 109) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 15:20:28,553 INFO L268 CegarLoopResult]: For program point L91-1(line 91) no Hoare annotation was computed. [2020-08-18 15:20:28,553 INFO L268 CegarLoopResult]: For program point L89(lines 89 106) no Hoare annotation was computed. [2020-08-18 15:20:28,553 INFO L264 CegarLoopResult]: At program point L104(line 104) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-08-18 15:20:28,553 INFO L268 CegarLoopResult]: For program point L104-1(lines 85 109) no Hoare annotation was computed. [2020-08-18 15:20:28,553 INFO L264 CegarLoopResult]: At program point L99(line 99) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2020-08-18 15:20:28,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:20:28 BoogieIcfgContainer [2020-08-18 15:20:28,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:20:28,570 INFO L168 Benchmark]: Toolchain (without parser) took 29510.02 ms. Allocated memory was 140.0 MB in the beginning and 655.9 MB in the end (delta: 515.9 MB). Free memory was 102.4 MB in the beginning and 433.4 MB in the end (delta: -331.0 MB). Peak memory consumption was 533.7 MB. Max. memory is 7.1 GB. [2020-08-18 15:20:28,571 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 15:20:28,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.71 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 171.4 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-08-18 15:20:28,572 INFO L168 Benchmark]: Boogie Preprocessor took 84.82 ms. Allocated memory is still 202.9 MB. Free memory was 171.4 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:20:28,573 INFO L168 Benchmark]: RCFGBuilder took 1239.19 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 167.3 MB in the beginning and 198.8 MB in the end (delta: -31.5 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-08-18 15:20:28,574 INFO L168 Benchmark]: TraceAbstraction took 27383.47 ms. Allocated memory was 236.5 MB in the beginning and 655.9 MB in the end (delta: 419.4 MB). Free memory was 197.3 MB in the beginning and 433.4 MB in the end (delta: -236.1 MB). Peak memory consumption was 532.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:20:28,578 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.71 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 171.4 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.82 ms. Allocated memory is still 202.9 MB. Free memory was 171.4 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1239.19 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 167.3 MB in the beginning and 198.8 MB in the end (delta: -31.5 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27383.47 ms. Allocated memory was 236.5 MB in the beginning and 655.9 MB in the end (delta: 419.4 MB). Free memory was 197.3 MB in the beginning and 433.4 MB in the end (delta: -236.1 MB). Peak memory consumption was 532.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 300]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 1) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((\old(waterLevel) == waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 720]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: (!(systemActive == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 572 SDtfs, 1130 SDslu, 397 SDs, 0 SdLazy, 2550 SolverSat, 708 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 163 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 412 PreInvPairs, 432 NumberOfFragments, 1117 HoareAnnotationTreeSize, 412 FomulaSimplifications, 41818 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 57 FomulaSimplificationsInter, 9677 FormulaSimplificationTreeSizeReductionInter, 9.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 118871 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 29/36 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 correct! Received shutdown request...