/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:00:21,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:00:21,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:00:21,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:00:21,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:00:21,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:00:21,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:00:21,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:00:21,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:00:21,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:00:21,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:00:21,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:00:21,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:00:21,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:00:21,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:00:21,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:00:21,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:00:21,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:00:21,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:00:21,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:00:21,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:00:21,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:00:21,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:00:21,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:00:21,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:00:21,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:00:21,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:00:21,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:00:21,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:00:21,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:00:21,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:00:21,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:00:21,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:00:21,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:00:21,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:00:21,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:00:21,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:00:21,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:00:21,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:00:21,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:00:21,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:00:21,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 01:00:21,798 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:00:21,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:00:21,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:00:21,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:00:21,801 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:00:21,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:00:21,802 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:00:21,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:00:21,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:00:21,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:00:21,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:00:21,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:00:21,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:00:21,804 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:00:21,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:00:21,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:00:21,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:00:21,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:00:21,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:00:21,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:00:21,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:00:21,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:00:21,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:00:21,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:00:21,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:00:21,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:00:21,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:00:21,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:00:21,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 01:00:22,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:00:22,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:00:22,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:00:22,133 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:00:22,133 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:00:22,134 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2019-11-07 01:00:22,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a436b05a/3e616d307eef4b2db92ba4d9196c2c92/FLAG2d9df5448 [2019-11-07 01:00:22,781 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:00:22,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2019-11-07 01:00:22,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a436b05a/3e616d307eef4b2db92ba4d9196c2c92/FLAG2d9df5448 [2019-11-07 01:00:23,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a436b05a/3e616d307eef4b2db92ba4d9196c2c92 [2019-11-07 01:00:23,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:00:23,078 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:00:23,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:00:23,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:00:23,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:00:23,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a30013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23, skipping insertion in model container [2019-11-07 01:00:23,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,100 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:00:23,166 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:00:23,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:00:23,687 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:00:23,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:00:23,835 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:00:23,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23 WrapperNode [2019-11-07 01:00:23,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:00:23,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:00:23,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:00:23,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:00:23,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... [2019-11-07 01:00:23,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:00:23,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:00:23,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:00:23,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:00:23,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:00:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:00:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:00:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 01:00:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 01:00:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 01:00:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 01:00:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 01:00:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 01:00:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 01:00:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 01:00:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 01:00:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 01:00:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 01:00:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:00:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 01:00:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-11-07 01:00:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-11-07 01:00:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 01:00:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 01:00:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 01:00:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 01:00:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 01:00:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 01:00:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 01:00:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 01:00:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 01:00:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 01:00:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 01:00:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 01:00:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 01:00:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 01:00:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 01:00:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 01:00:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 01:00:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 01:00:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 01:00:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 01:00:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 01:00:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 01:00:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 01:00:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 01:00:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 01:00:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 01:00:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-07 01:00:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:00:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:00:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 01:00:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 01:00:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 01:00:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 01:00:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 01:00:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 01:00:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 01:00:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 01:00:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 01:00:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 01:00:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 01:00:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 01:00:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 01:00:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 01:00:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 01:00:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 01:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 01:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 01:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 01:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 01:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 01:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 01:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 01:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 01:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 01:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-11-07 01:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 01:00:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 01:00:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 01:00:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 01:00:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 01:00:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:00:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 01:00:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 01:00:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 01:00:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-11-07 01:00:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 01:00:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 01:00:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 01:00:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 01:00:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 01:00:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 01:00:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-07 01:00:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 01:00:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 01:00:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 01:00:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 01:00:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 01:00:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 01:00:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 01:00:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 01:00:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 01:00:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 01:00:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:00:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 01:00:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:00:25,362 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:00:25,363 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 01:00:25,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:25 BoogieIcfgContainer [2019-11-07 01:00:25,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:00:25,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:00:25,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:00:25,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:00:25,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:00:23" (1/3) ... [2019-11-07 01:00:25,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f703d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:25, skipping insertion in model container [2019-11-07 01:00:25,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:23" (2/3) ... [2019-11-07 01:00:25,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f703d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:25, skipping insertion in model container [2019-11-07 01:00:25,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:25" (3/3) ... [2019-11-07 01:00:25,377 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2019-11-07 01:00:25,386 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:00:25,396 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:00:25,407 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:00:25,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:00:25,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:00:25,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:00:25,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:00:25,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:00:25,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:00:25,443 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:00:25,444 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:00:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2019-11-07 01:00:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-07 01:00:25,478 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:25,479 INFO L410 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] [2019-11-07 01:00:25,481 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:25,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:25,487 INFO L82 PathProgramCache]: Analyzing trace with hash -519940638, now seen corresponding path program 1 times [2019-11-07 01:00:25,498 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:25,498 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777244556] [2019-11-07 01:00:25,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:25,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:00:25,865 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777244556] [2019-11-07 01:00:25,866 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:25,866 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 01:00:25,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712655286] [2019-11-07 01:00:25,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 01:00:25,878 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:25,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 01:00:25,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 01:00:25,902 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2019-11-07 01:00:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:25,953 INFO L93 Difference]: Finished difference Result 314 states and 391 transitions. [2019-11-07 01:00:25,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 01:00:25,954 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-11-07 01:00:25,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:25,970 INFO L225 Difference]: With dead ends: 314 [2019-11-07 01:00:25,971 INFO L226 Difference]: Without dead ends: 159 [2019-11-07 01:00:25,978 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 01:00:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-07 01:00:26,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-11-07 01:00:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-07 01:00:26,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2019-11-07 01:00:26,043 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 51 [2019-11-07 01:00:26,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:26,044 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2019-11-07 01:00:26,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 01:00:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2019-11-07 01:00:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 01:00:26,049 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:26,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:26,050 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:26,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:26,050 INFO L82 PathProgramCache]: Analyzing trace with hash -183354494, now seen corresponding path program 1 times [2019-11-07 01:00:26,051 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:26,051 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56046409] [2019-11-07 01:00:26,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:00:26,168 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56046409] [2019-11-07 01:00:26,168 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:26,168 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:00:26,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951115741] [2019-11-07 01:00:26,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:00:26,171 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:26,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:00:26,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:00:26,172 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 3 states. [2019-11-07 01:00:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:26,225 INFO L93 Difference]: Finished difference Result 259 states and 309 transitions. [2019-11-07 01:00:26,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:00:26,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-11-07 01:00:26,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:26,228 INFO L225 Difference]: With dead ends: 259 [2019-11-07 01:00:26,228 INFO L226 Difference]: Without dead ends: 150 [2019-11-07 01:00:26,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:00:26,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-07 01:00:26,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-07 01:00:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-07 01:00:26,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2019-11-07 01:00:26,257 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 52 [2019-11-07 01:00:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:26,257 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2019-11-07 01:00:26,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:00:26,258 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2019-11-07 01:00:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-07 01:00:26,263 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:26,263 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:26,264 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:26,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:26,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1707012514, now seen corresponding path program 1 times [2019-11-07 01:00:26,264 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:26,267 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761441213] [2019-11-07 01:00:26,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:00:26,464 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761441213] [2019-11-07 01:00:26,464 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:26,465 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 01:00:26,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341336317] [2019-11-07 01:00:26,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 01:00:26,466 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:26,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 01:00:26,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:00:26,467 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 7 states. [2019-11-07 01:00:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:26,900 INFO L93 Difference]: Finished difference Result 272 states and 327 transitions. [2019-11-07 01:00:26,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 01:00:26,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-11-07 01:00:26,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:26,904 INFO L225 Difference]: With dead ends: 272 [2019-11-07 01:00:26,904 INFO L226 Difference]: Without dead ends: 150 [2019-11-07 01:00:26,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 01:00:26,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-07 01:00:26,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-07 01:00:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-07 01:00:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2019-11-07 01:00:26,937 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 57 [2019-11-07 01:00:26,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:26,938 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2019-11-07 01:00:26,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 01:00:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2019-11-07 01:00:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-07 01:00:26,941 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:26,941 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:26,941 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:26,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1819519357, now seen corresponding path program 1 times [2019-11-07 01:00:26,942 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:26,942 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230484439] [2019-11-07 01:00:26,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:00:27,121 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230484439] [2019-11-07 01:00:27,121 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:27,121 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 01:00:27,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842185000] [2019-11-07 01:00:27,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 01:00:27,122 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:27,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 01:00:27,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 01:00:27,123 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 5 states. [2019-11-07 01:00:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:27,686 INFO L93 Difference]: Finished difference Result 388 states and 472 transitions. [2019-11-07 01:00:27,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:00:27,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2019-11-07 01:00:27,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:27,689 INFO L225 Difference]: With dead ends: 388 [2019-11-07 01:00:27,689 INFO L226 Difference]: Without dead ends: 266 [2019-11-07 01:00:27,691 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 01:00:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-07 01:00:27,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 247. [2019-11-07 01:00:27,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-11-07 01:00:27,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 282 transitions. [2019-11-07 01:00:27,719 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 282 transitions. Word has length 75 [2019-11-07 01:00:27,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:27,720 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 282 transitions. [2019-11-07 01:00:27,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 01:00:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 282 transitions. [2019-11-07 01:00:27,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-11-07 01:00:27,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:27,722 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:27,723 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:27,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:27,723 INFO L82 PathProgramCache]: Analyzing trace with hash 948942276, now seen corresponding path program 1 times [2019-11-07 01:00:27,723 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:27,724 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470837434] [2019-11-07 01:00:27,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:00:27,869 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470837434] [2019-11-07 01:00:27,869 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:27,869 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:00:27,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148135562] [2019-11-07 01:00:27,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:00:27,872 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:27,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:00:27,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:00:27,874 INFO L87 Difference]: Start difference. First operand 247 states and 282 transitions. Second operand 6 states. [2019-11-07 01:00:28,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:28,102 INFO L93 Difference]: Finished difference Result 667 states and 782 transitions. [2019-11-07 01:00:28,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 01:00:28,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-11-07 01:00:28,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:28,107 INFO L225 Difference]: With dead ends: 667 [2019-11-07 01:00:28,107 INFO L226 Difference]: Without dead ends: 448 [2019-11-07 01:00:28,109 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 01:00:28,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-11-07 01:00:28,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2019-11-07 01:00:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-11-07 01:00:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 504 transitions. [2019-11-07 01:00:28,149 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 504 transitions. Word has length 89 [2019-11-07 01:00:28,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:28,149 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 504 transitions. [2019-11-07 01:00:28,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:00:28,150 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 504 transitions. [2019-11-07 01:00:28,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-07 01:00:28,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:28,152 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:28,152 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:28,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:28,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1944159016, now seen corresponding path program 1 times [2019-11-07 01:00:28,153 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:28,153 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927913306] [2019-11-07 01:00:28,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:00:28,271 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927913306] [2019-11-07 01:00:28,272 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:28,272 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 01:00:28,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136779929] [2019-11-07 01:00:28,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 01:00:28,274 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:28,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 01:00:28,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:00:28,275 INFO L87 Difference]: Start difference. First operand 442 states and 504 transitions. Second operand 7 states. [2019-11-07 01:00:29,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:29,109 INFO L93 Difference]: Finished difference Result 887 states and 1036 transitions. [2019-11-07 01:00:29,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 01:00:29,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-11-07 01:00:29,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:29,113 INFO L225 Difference]: With dead ends: 887 [2019-11-07 01:00:29,113 INFO L226 Difference]: Without dead ends: 473 [2019-11-07 01:00:29,115 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-07 01:00:29,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-11-07 01:00:29,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 441. [2019-11-07 01:00:29,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-11-07 01:00:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 501 transitions. [2019-11-07 01:00:29,147 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 501 transitions. Word has length 93 [2019-11-07 01:00:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:29,147 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 501 transitions. [2019-11-07 01:00:29,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 01:00:29,148 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 501 transitions. [2019-11-07 01:00:29,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-11-07 01:00:29,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:29,152 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:29,152 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:29,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:29,153 INFO L82 PathProgramCache]: Analyzing trace with hash -412136482, now seen corresponding path program 1 times [2019-11-07 01:00:29,153 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:29,153 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18599221] [2019-11-07 01:00:29,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:29,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-07 01:00:29,245 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18599221] [2019-11-07 01:00:29,245 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:29,246 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:00:29,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124706722] [2019-11-07 01:00:29,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:00:29,247 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:29,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:00:29,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:00:29,247 INFO L87 Difference]: Start difference. First operand 441 states and 501 transitions. Second operand 6 states. [2019-11-07 01:00:29,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:29,294 INFO L93 Difference]: Finished difference Result 868 states and 1010 transitions. [2019-11-07 01:00:29,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 01:00:29,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2019-11-07 01:00:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:29,298 INFO L225 Difference]: With dead ends: 868 [2019-11-07 01:00:29,298 INFO L226 Difference]: Without dead ends: 455 [2019-11-07 01:00:29,300 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:00:29,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-11-07 01:00:29,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 451. [2019-11-07 01:00:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-11-07 01:00:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 511 transitions. [2019-11-07 01:00:29,328 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 511 transitions. Word has length 109 [2019-11-07 01:00:29,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:29,329 INFO L462 AbstractCegarLoop]: Abstraction has 451 states and 511 transitions. [2019-11-07 01:00:29,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:00:29,329 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 511 transitions. [2019-11-07 01:00:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-11-07 01:00:29,331 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:29,331 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:29,331 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:29,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:29,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1527025564, now seen corresponding path program 1 times [2019-11-07 01:00:29,332 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:29,332 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209406353] [2019-11-07 01:00:29,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-07 01:00:29,442 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209406353] [2019-11-07 01:00:29,442 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:29,442 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 01:00:29,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075360035] [2019-11-07 01:00:29,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 01:00:29,443 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:29,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 01:00:29,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 01:00:29,444 INFO L87 Difference]: Start difference. First operand 451 states and 511 transitions. Second operand 8 states. [2019-11-07 01:00:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:29,503 INFO L93 Difference]: Finished difference Result 888 states and 1032 transitions. [2019-11-07 01:00:29,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 01:00:29,506 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-11-07 01:00:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:29,512 INFO L225 Difference]: With dead ends: 888 [2019-11-07 01:00:29,512 INFO L226 Difference]: Without dead ends: 465 [2019-11-07 01:00:29,515 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 01:00:29,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-11-07 01:00:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 459. [2019-11-07 01:00:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-11-07 01:00:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 519 transitions. [2019-11-07 01:00:29,595 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 519 transitions. Word has length 109 [2019-11-07 01:00:29,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:29,596 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 519 transitions. [2019-11-07 01:00:29,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 01:00:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 519 transitions. [2019-11-07 01:00:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-11-07 01:00:29,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:29,601 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:29,601 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:29,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:29,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1998771717, now seen corresponding path program 1 times [2019-11-07 01:00:29,602 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:29,604 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239025608] [2019-11-07 01:00:29,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-07 01:00:29,725 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239025608] [2019-11-07 01:00:29,725 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:00:29,726 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 01:00:29,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116137484] [2019-11-07 01:00:29,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 01:00:29,727 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:29,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:00:29,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 01:00:29,728 INFO L87 Difference]: Start difference. First operand 459 states and 519 transitions. Second operand 4 states. [2019-11-07 01:00:29,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:29,963 INFO L93 Difference]: Finished difference Result 1362 states and 1616 transitions. [2019-11-07 01:00:29,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 01:00:29,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2019-11-07 01:00:29,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:29,969 INFO L225 Difference]: With dead ends: 1362 [2019-11-07 01:00:29,970 INFO L226 Difference]: Without dead ends: 931 [2019-11-07 01:00:29,971 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 01:00:29,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2019-11-07 01:00:30,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 916. [2019-11-07 01:00:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2019-11-07 01:00:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1065 transitions. [2019-11-07 01:00:30,025 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1065 transitions. Word has length 109 [2019-11-07 01:00:30,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:30,026 INFO L462 AbstractCegarLoop]: Abstraction has 916 states and 1065 transitions. [2019-11-07 01:00:30,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 01:00:30,026 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1065 transitions. [2019-11-07 01:00:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-07 01:00:30,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:30,029 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:30,029 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:30,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:30,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1262789055, now seen corresponding path program 1 times [2019-11-07 01:00:30,030 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:30,030 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282072124] [2019-11-07 01:00:30,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 01:00:30,174 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282072124] [2019-11-07 01:00:30,174 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337885839] [2019-11-07 01:00:30,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:00:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:30,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-07 01:00:30,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:00:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:00:30,640 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:00:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 01:00:31,927 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:00:31,927 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-11-07 01:00:31,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057601350] [2019-11-07 01:00:31,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 01:00:31,928 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:31,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 01:00:31,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-11-07 01:00:31,929 INFO L87 Difference]: Start difference. First operand 916 states and 1065 transitions. Second operand 8 states. [2019-11-07 01:00:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:32,393 INFO L93 Difference]: Finished difference Result 1773 states and 2073 transitions. [2019-11-07 01:00:32,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 01:00:32,393 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2019-11-07 01:00:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:32,400 INFO L225 Difference]: With dead ends: 1773 [2019-11-07 01:00:32,400 INFO L226 Difference]: Without dead ends: 885 [2019-11-07 01:00:32,403 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 208 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-11-07 01:00:32,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2019-11-07 01:00:32,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 885. [2019-11-07 01:00:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2019-11-07 01:00:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1014 transitions. [2019-11-07 01:00:32,464 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1014 transitions. Word has length 113 [2019-11-07 01:00:32,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:32,465 INFO L462 AbstractCegarLoop]: Abstraction has 885 states and 1014 transitions. [2019-11-07 01:00:32,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 01:00:32,468 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1014 transitions. [2019-11-07 01:00:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 01:00:32,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:00:32,473 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:00:32,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:00:32,680 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:00:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:00:32,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1271659967, now seen corresponding path program 1 times [2019-11-07 01:00:32,680 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:00:32,681 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832405893] [2019-11-07 01:00:32,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:00:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 01:00:32,892 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832405893] [2019-11-07 01:00:32,892 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821824003] [2019-11-07 01:00:32,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:00:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:00:33,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-07 01:00:33,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:00:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-07 01:00:33,311 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:00:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 01:00:34,016 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:00:34,016 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-11-07 01:00:34,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667668998] [2019-11-07 01:00:34,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 01:00:34,018 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:00:34,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 01:00:34,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-11-07 01:00:34,019 INFO L87 Difference]: Start difference. First operand 885 states and 1014 transitions. Second operand 8 states. [2019-11-07 01:00:34,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:00:34,393 INFO L93 Difference]: Finished difference Result 1481 states and 1720 transitions. [2019-11-07 01:00:34,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 01:00:34,393 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2019-11-07 01:00:34,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:00:34,394 INFO L225 Difference]: With dead ends: 1481 [2019-11-07 01:00:34,394 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 01:00:34,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 351 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-11-07 01:00:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 01:00:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 01:00:34,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 01:00:34,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 01:00:34,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 183 [2019-11-07 01:00:34,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:00:34,400 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 01:00:34,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 01:00:34,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 01:00:34,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 01:00:34,614 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:00:34,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 01:00:35,763 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2019-11-07 01:00:36,802 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2019-11-07 01:00:37,134 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2019-11-07 01:00:37,625 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 19 [2019-11-07 01:00:37,753 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 19 [2019-11-07 01:00:38,758 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2019-11-07 01:00:39,136 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2019-11-07 01:00:39,139 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 127) no Hoare annotation was computed. [2019-11-07 01:00:39,139 INFO L443 ceAbstractionStarter]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point L139(lines 116 140) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-07 01:00:39,140 INFO L443 ceAbstractionStarter]: For program point L193-1(line 193) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 184) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2019-11-07 01:00:39,141 INFO L443 ceAbstractionStarter]: For program point L200(lines 173 201) no Hoare annotation was computed. [2019-11-07 01:00:39,142 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 688 694) the Hoare annotation is: true [2019-11-07 01:00:39,142 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 688 694) no Hoare annotation was computed. [2019-11-07 01:00:39,142 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 695 703) no Hoare annotation was computed. [2019-11-07 01:00:39,142 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 695 703) the Hoare annotation is: true [2019-11-07 01:00:39,142 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 695 703) no Hoare annotation was computed. [2019-11-07 01:00:39,142 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 488 510) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,143 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 488 510) no Hoare annotation was computed. [2019-11-07 01:00:39,143 INFO L439 ceAbstractionStarter]: At program point L500(line 500) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= main_~tmp~3 1) (= 1 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,143 INFO L439 ceAbstractionStarter]: At program point L500-1(line 500) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= main_~tmp~3 1) (= 1 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,143 INFO L443 ceAbstractionStarter]: For program point L498(lines 498 505) no Hoare annotation was computed. [2019-11-07 01:00:39,143 INFO L443 ceAbstractionStarter]: For program point L498-1(lines 498 505) no Hoare annotation was computed. [2019-11-07 01:00:39,143 INFO L443 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2019-11-07 01:00:39,144 INFO L439 ceAbstractionStarter]: At program point L495(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,144 INFO L439 ceAbstractionStarter]: At program point L494(line 494) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,144 INFO L439 ceAbstractionStarter]: At program point L494-1(line 494) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,144 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 488 510) no Hoare annotation was computed. [2019-11-07 01:00:39,144 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-07 01:00:39,144 INFO L443 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 441 464) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point L447(line 447) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 441 464) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 441 464) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point L459(line 459) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-07 01:00:39,145 INFO L443 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L443 ceAbstractionStarter]: For program point L456(line 456) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L443 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L443 ceAbstractionStarter]: For program point L453(line 453) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L443 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L443 ceAbstractionStarter]: For program point L450(line 450) no Hoare annotation was computed. [2019-11-07 01:00:39,146 INFO L439 ceAbstractionStarter]: At program point L855(line 855) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) (not .cse2) .cse0) (or .cse3 .cse0 .cse1))) [2019-11-07 01:00:39,147 INFO L443 ceAbstractionStarter]: For program point L855-1(lines 836 860) no Hoare annotation was computed. [2019-11-07 01:00:39,147 INFO L439 ceAbstractionStarter]: At program point L850(line 850) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or .cse1 .cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2019-11-07 01:00:39,147 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 836 860) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2019-11-07 01:00:39,147 INFO L439 ceAbstractionStarter]: At program point L846(line 846) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or .cse1 .cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2019-11-07 01:00:39,147 INFO L443 ceAbstractionStarter]: For program point L844(lines 844 852) no Hoare annotation was computed. [2019-11-07 01:00:39,147 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 836 860) no Hoare annotation was computed. [2019-11-07 01:00:39,148 INFO L439 ceAbstractionStarter]: At program point L842(line 842) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or .cse1 .cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2019-11-07 01:00:39,148 INFO L443 ceAbstractionStarter]: For program point L842-1(line 842) no Hoare annotation was computed. [2019-11-07 01:00:39,148 INFO L443 ceAbstractionStarter]: For program point L840(lines 840 857) no Hoare annotation was computed. [2019-11-07 01:00:39,148 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 931 939) no Hoare annotation was computed. [2019-11-07 01:00:39,148 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 931 939) the Hoare annotation is: true [2019-11-07 01:00:39,148 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 931 939) no Hoare annotation was computed. [2019-11-07 01:00:39,148 INFO L443 ceAbstractionStarter]: For program point L1004(lines 1004 1008) no Hoare annotation was computed. [2019-11-07 01:00:39,148 INFO L446 ceAbstractionStarter]: At program point L1002(line 1002) the Hoare annotation is: true [2019-11-07 01:00:39,148 INFO L443 ceAbstractionStarter]: For program point L1004-2(lines 1004 1008) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 995 1013) the Hoare annotation is: true [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point L1002-1(line 1002) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 995 1013) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 995 1013) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point L959(lines 959 967) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point L959-2(lines 959 967) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point L947(lines 947 955) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point L947-2(lines 947 955) no Hoare annotation was computed. [2019-11-07 01:00:39,149 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 940 975) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point L970(line 970) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point L970-1(line 970) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 940 975) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 940 975) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 681 687) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 681 687) the Hoare annotation is: true [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2019-11-07 01:00:39,150 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2019-11-07 01:00:39,151 INFO L443 ceAbstractionStarter]: For program point L379(lines 379 386) no Hoare annotation was computed. [2019-11-07 01:00:39,151 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2019-11-07 01:00:39,151 INFO L443 ceAbstractionStarter]: For program point L373(lines 373 393) no Hoare annotation was computed. [2019-11-07 01:00:39,151 INFO L443 ceAbstractionStarter]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2019-11-07 01:00:39,151 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2019-11-07 01:00:39,151 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2019-11-07 01:00:39,151 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 474 484) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,152 INFO L439 ceAbstractionStarter]: At program point L479(line 479) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,152 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 474 484) no Hoare annotation was computed. [2019-11-07 01:00:39,152 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 474 484) no Hoare annotation was computed. [2019-11-07 01:00:39,152 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 920 930) the Hoare annotation is: true [2019-11-07 01:00:39,152 INFO L446 ceAbstractionStarter]: At program point L925(line 925) the Hoare annotation is: true [2019-11-07 01:00:39,152 INFO L443 ceAbstractionStarter]: For program point L925-1(line 925) no Hoare annotation was computed. [2019-11-07 01:00:39,152 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 920 930) no Hoare annotation was computed. [2019-11-07 01:00:39,152 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 920 930) no Hoare annotation was computed. [2019-11-07 01:00:39,153 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 912 919) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2019-11-07 01:00:39,153 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 912 919) no Hoare annotation was computed. [2019-11-07 01:00:39,153 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 912 919) no Hoare annotation was computed. [2019-11-07 01:00:39,153 INFO L443 ceAbstractionStarter]: For program point L650(lines 650 656) no Hoare annotation was computed. [2019-11-07 01:00:39,153 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 646 659) no Hoare annotation was computed. [2019-11-07 01:00:39,153 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 646 659) the Hoare annotation is: true [2019-11-07 01:00:39,153 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 646 659) no Hoare annotation was computed. [2019-11-07 01:00:39,153 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 862 886) no Hoare annotation was computed. [2019-11-07 01:00:39,154 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 862 886) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2019-11-07 01:00:39,154 INFO L439 ceAbstractionStarter]: At program point L881(line 881) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse0 .cse2) (or .cse3 .cse4 .cse0))) [2019-11-07 01:00:39,154 INFO L443 ceAbstractionStarter]: For program point L881-1(lines 862 886) no Hoare annotation was computed. [2019-11-07 01:00:39,154 INFO L439 ceAbstractionStarter]: At program point L876(line 876) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2019-11-07 01:00:39,154 INFO L439 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse3 (and .cse4 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~8)) .cse1) (or .cse1 .cse2 .cse4))) [2019-11-07 01:00:39,155 INFO L443 ceAbstractionStarter]: For program point L870(lines 870 878) no Hoare annotation was computed. [2019-11-07 01:00:39,155 INFO L439 ceAbstractionStarter]: At program point L868(line 868) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or .cse0 .cse3 .cse1) (or .cse1 .cse4 .cse2))) [2019-11-07 01:00:39,155 INFO L443 ceAbstractionStarter]: For program point L868-1(line 868) no Hoare annotation was computed. [2019-11-07 01:00:39,155 INFO L443 ceAbstractionStarter]: For program point L866(lines 866 883) no Hoare annotation was computed. [2019-11-07 01:00:39,155 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 802 808) no Hoare annotation was computed. [2019-11-07 01:00:39,155 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 802 808) the Hoare annotation is: true [2019-11-07 01:00:39,155 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 706 771) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,156 INFO L439 ceAbstractionStarter]: At program point L764(lines 715 765) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 01:00:39,156 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 706 771) no Hoare annotation was computed. [2019-11-07 01:00:39,156 INFO L443 ceAbstractionStarter]: For program point L754(lines 754 758) no Hoare annotation was computed. [2019-11-07 01:00:39,156 INFO L439 ceAbstractionStarter]: At program point L754-2(lines 746 759) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 01:00:39,156 INFO L443 ceAbstractionStarter]: For program point L717(lines 716 763) no Hoare annotation was computed. [2019-11-07 01:00:39,156 INFO L439 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 01:00:39,156 INFO L443 ceAbstractionStarter]: For program point L746(lines 746 759) no Hoare annotation was computed. [2019-11-07 01:00:39,157 INFO L439 ceAbstractionStarter]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) (= ~pumpRunning~0 0)) (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 01:00:39,157 INFO L443 ceAbstractionStarter]: For program point L736(lines 736 742) no Hoare annotation was computed. [2019-11-07 01:00:39,157 INFO L443 ceAbstractionStarter]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2019-11-07 01:00:39,157 INFO L439 ceAbstractionStarter]: At program point L761(lines 716 763) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) (= ~pumpRunning~0 0)) (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 01:00:39,157 INFO L439 ceAbstractionStarter]: At program point L728(line 728) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1) (not (= |old(~systemActive~0)| 1)) (and (<= 1 ~methaneLevelCritical~0) (and .cse0 .cse1 (= ~pumpRunning~0 0))) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 01:00:39,157 INFO L443 ceAbstractionStarter]: For program point L726(lines 726 732) no Hoare annotation was computed. [2019-11-07 01:00:39,157 INFO L443 ceAbstractionStarter]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2019-11-07 01:00:39,157 INFO L443 ceAbstractionStarter]: For program point L718(lines 718 722) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 706 771) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 340) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 347) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L443 ceAbstractionStarter]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2019-11-07 01:00:39,158 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 887 894) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 0)) [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 887 894) no Hoare annotation was computed. [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 887 894) no Hoare annotation was computed. [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 660 668) no Hoare annotation was computed. [2019-11-07 01:00:39,159 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 660 668) the Hoare annotation is: true [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 660 668) no Hoare annotation was computed. [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point L545(lines 545 551) no Hoare annotation was computed. [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point L544(lines 544 554) no Hoare annotation was computed. [2019-11-07 01:00:39,159 INFO L439 ceAbstractionStarter]: At program point L542(line 542) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point L542-1(line 542) no Hoare annotation was computed. [2019-11-07 01:00:39,159 INFO L443 ceAbstractionStarter]: For program point L540(lines 540 557) no Hoare annotation was computed. [2019-11-07 01:00:39,160 INFO L443 ceAbstractionStarter]: For program point L540-1(lines 532 560) no Hoare annotation was computed. [2019-11-07 01:00:39,160 INFO L446 ceAbstractionStarter]: At program point L538(line 538) the Hoare annotation is: true [2019-11-07 01:00:39,160 INFO L443 ceAbstractionStarter]: For program point L538-1(line 538) no Hoare annotation was computed. [2019-11-07 01:00:39,160 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 532 560) the Hoare annotation is: true [2019-11-07 01:00:39,160 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 532 560) no Hoare annotation was computed. [2019-11-07 01:00:39,160 INFO L439 ceAbstractionStarter]: At program point L547(line 547) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2019-11-07 01:00:39,160 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 524 531) the Hoare annotation is: true [2019-11-07 01:00:39,160 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 524 531) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 524 531) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point L622(lines 622 630) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point L622-2(lines 622 630) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 614 636) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 614 636) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 614 636) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 297) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2019-11-07 01:00:39,161 INFO L443 ceAbstractionStarter]: For program point L275(line 275) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point L275-1(line 275) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 238) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point L298(lines 298 309) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 265) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point L280(lines 258 281) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2019-11-07 01:00:39,162 INFO L443 ceAbstractionStarter]: For program point L239(lines 239 255) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 306) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point L260(lines 259 279) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point L291(line 291) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point L291-1(line 291) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 671 680) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 671 680) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 671 680) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:00:39,163 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2019-11-07 01:00:39,164 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:00:39,164 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 895 911) no Hoare annotation was computed. [2019-11-07 01:00:39,164 INFO L439 ceAbstractionStarter]: At program point L906(line 906) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 0)) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 .cse2))) [2019-11-07 01:00:39,164 INFO L443 ceAbstractionStarter]: For program point L906-1(lines 895 911) no Hoare annotation was computed. [2019-11-07 01:00:39,164 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 895 911) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= ~pumpRunning~0 0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2019-11-07 01:00:39,164 INFO L443 ceAbstractionStarter]: For program point L902(lines 902 908) no Hoare annotation was computed. [2019-11-07 01:00:39,165 INFO L439 ceAbstractionStarter]: At program point L900(line 900) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= ~pumpRunning~0 0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2019-11-07 01:00:39,165 INFO L443 ceAbstractionStarter]: For program point L900-1(line 900) no Hoare annotation was computed. [2019-11-07 01:00:39,165 INFO L443 ceAbstractionStarter]: For program point getWaterLevelENTRY(lines 637 645) no Hoare annotation was computed. [2019-11-07 01:00:39,165 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 637 645) no Hoare annotation was computed. [2019-11-07 01:00:39,165 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 637 645) no Hoare annotation was computed. [2019-11-07 01:00:39,165 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 976 994) no Hoare annotation was computed. [2019-11-07 01:00:39,165 INFO L443 ceAbstractionStarter]: For program point L985(lines 985 989) no Hoare annotation was computed. [2019-11-07 01:00:39,165 INFO L446 ceAbstractionStarter]: At program point L983(line 983) the Hoare annotation is: true [2019-11-07 01:00:39,166 INFO L443 ceAbstractionStarter]: For program point L985-2(lines 985 989) no Hoare annotation was computed. [2019-11-07 01:00:39,166 INFO L443 ceAbstractionStarter]: For program point L983-1(line 983) no Hoare annotation was computed. [2019-11-07 01:00:39,166 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 976 994) the Hoare annotation is: true [2019-11-07 01:00:39,166 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 976 994) no Hoare annotation was computed. [2019-11-07 01:00:39,166 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:00:39,166 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-11-07 01:00:39,166 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:00:39,166 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 593 604) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (or (<= 1 ~methaneLevelCritical~0) (not (<= 1 |old(~methaneLevelCritical~0)|)) (not (= 0 ~pumpRunning~0)) .cse0))) [2019-11-07 01:00:39,167 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 593 604) no Hoare annotation was computed. [2019-11-07 01:00:39,167 INFO L443 ceAbstractionStarter]: For program point L597-1(lines 593 604) no Hoare annotation was computed. [2019-11-07 01:00:39,167 INFO L439 ceAbstractionStarter]: At program point L791(line 791) the Hoare annotation is: (let ((.cse1 (= 1 ~waterLevel~0)) (.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not .cse7)) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (not .cse1)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse4 .cse5) (or .cse5 .cse6 .cse2) (or .cse7 .cse0 .cse2 .cse4 .cse8) (or .cse6 .cse0 .cse2 .cse1 .cse3) (or .cse6 .cse7 .cse8 .cse2 .cse0)))) [2019-11-07 01:00:39,167 INFO L439 ceAbstractionStarter]: At program point L789(lines 789 795) the Hoare annotation is: (let ((.cse11 (= 1 ~waterLevel~0))) (let ((.cse9 (not .cse11)) (.cse13 (= 1 ~systemActive~0)) (.cse14 (= 0 ~methaneLevelCritical~0)) (.cse15 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= |old(~waterLevel~0)| 1)) (.cse10 (not (= 0 |old(~pumpRunning~0)|))) (.cse17 (<= 1 ~methaneLevelCritical~0)) (.cse16 (= ~pumpRunning~0 0))) (let ((.cse8 (and .cse10 .cse17 .cse16)) (.cse7 (not .cse17)) (.cse12 (not .cse0)) (.cse6 (and .cse15 .cse16)) (.cse1 (and .cse10 .cse16)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and .cse13 .cse10 .cse14 .cse15)) (.cse5 (and .cse13 .cse14 .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse8 .cse2) (or .cse7 .cse0 .cse8 .cse9 .cse2) (or .cse10 .cse11 .cse2 .cse12 .cse3) (or .cse7 .cse10 .cse2 .cse11 .cse12) (or .cse6 .cse1 .cse2 .cse3 .cse4 .cse5))))) [2019-11-07 01:00:39,168 INFO L439 ceAbstractionStarter]: At program point L784(line 784) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or .cse1 (not (= ~methaneLevelCritical~0 0)) (and .cse3 .cse2)))) [2019-11-07 01:00:39,168 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 778 801) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1)) (.cse5 (= 1 ~waterLevel~0))) (let ((.cse2 (not .cse5)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not .cse1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 .cse6 .cse7) (or .cse8 .cse3 .cse7) (or .cse1 .cse2 .cse3 .cse7) (or .cse0 .cse8 .cse3) (or .cse0 .cse4 .cse3 .cse5 .cse6)))) [2019-11-07 01:00:39,168 INFO L443 ceAbstractionStarter]: For program point L782(lines 781 800) no Hoare annotation was computed. [2019-11-07 01:00:39,168 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 778 801) no Hoare annotation was computed. [2019-11-07 01:00:39,168 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 778 801) no Hoare annotation was computed. [2019-11-07 01:00:39,168 INFO L446 ceAbstractionStarter]: At program point L418-2(lines 418 432) the Hoare annotation is: true [2019-11-07 01:00:39,168 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 408 437) no Hoare annotation was computed. [2019-11-07 01:00:39,168 INFO L446 ceAbstractionStarter]: At program point L414(line 414) the Hoare annotation is: true [2019-11-07 01:00:39,169 INFO L443 ceAbstractionStarter]: For program point L414-1(line 414) no Hoare annotation was computed. [2019-11-07 01:00:39,169 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 408 437) the Hoare annotation is: true [2019-11-07 01:00:39,169 INFO L446 ceAbstractionStarter]: At program point L433(lines 408 437) the Hoare annotation is: true [2019-11-07 01:00:39,169 INFO L443 ceAbstractionStarter]: For program point L429(line 429) no Hoare annotation was computed. [2019-11-07 01:00:39,169 INFO L443 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2019-11-07 01:00:39,169 INFO L446 ceAbstractionStarter]: At program point L422-1(lines 422 426) the Hoare annotation is: true [2019-11-07 01:00:39,169 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-07 01:00:39,169 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 605 613) the Hoare annotation is: true [2019-11-07 01:00:39,169 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 605 613) no Hoare annotation was computed. [2019-11-07 01:00:39,170 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 605 613) no Hoare annotation was computed. [2019-11-07 01:00:39,170 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 569 580) the Hoare annotation is: true [2019-11-07 01:00:39,170 INFO L443 ceAbstractionStarter]: For program point L573-1(lines 569 580) no Hoare annotation was computed. [2019-11-07 01:00:39,170 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 569 580) no Hoare annotation was computed. [2019-11-07 01:00:39,170 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 465 471) no Hoare annotation was computed. [2019-11-07 01:00:39,170 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 465 471) the Hoare annotation is: true [2019-11-07 01:00:39,170 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:00:39,170 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-11-07 01:00:39,170 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 01:00:39,170 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:00:39,171 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 1014 1021) no Hoare annotation was computed. [2019-11-07 01:00:39,171 INFO L439 ceAbstractionStarter]: At program point startSystemENTRY(lines 1014 1021) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2019-11-07 01:00:39,171 INFO L443 ceAbstractionStarter]: For program point startSystemFINAL(lines 1014 1021) no Hoare annotation was computed. [2019-11-07 01:00:39,171 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 810 834) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2019-11-07 01:00:39,171 INFO L439 ceAbstractionStarter]: At program point L829(line 829) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or .cse1 .cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2019-11-07 01:00:39,171 INFO L443 ceAbstractionStarter]: For program point L829-1(lines 810 834) no Hoare annotation was computed. [2019-11-07 01:00:39,171 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 810 834) no Hoare annotation was computed. [2019-11-07 01:00:39,171 INFO L439 ceAbstractionStarter]: At program point L824(line 824) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~6) (= ~pumpRunning~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) (not .cse2) .cse3 .cse0))) [2019-11-07 01:00:39,172 INFO L439 ceAbstractionStarter]: At program point L820(line 820) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~waterLevel~0 1))) (or .cse3 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~waterLevel~0)) .cse2)))) [2019-11-07 01:00:39,172 INFO L443 ceAbstractionStarter]: For program point L818(lines 818 826) no Hoare annotation was computed. [2019-11-07 01:00:39,172 INFO L439 ceAbstractionStarter]: At program point L816(line 816) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) (not .cse2) .cse0) (or .cse3 .cse0 .cse1))) [2019-11-07 01:00:39,172 INFO L443 ceAbstractionStarter]: For program point L816-1(line 816) no Hoare annotation was computed. [2019-11-07 01:00:39,172 INFO L443 ceAbstractionStarter]: For program point L814(lines 814 831) no Hoare annotation was computed. [2019-11-07 01:00:39,172 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 581 592) no Hoare annotation was computed. [2019-11-07 01:00:39,172 INFO L443 ceAbstractionStarter]: For program point L585-1(lines 581 592) no Hoare annotation was computed. [2019-11-07 01:00:39,173 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 581 592) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= 1 ~waterLevel~0)) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse2 .cse1 .cse3))) [2019-11-07 01:00:39,173 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 512 519) no Hoare annotation was computed. [2019-11-07 01:00:39,173 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 512 519) the Hoare annotation is: true [2019-11-07 01:00:39,173 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 516) no Hoare annotation was computed. [2019-11-07 01:00:39,173 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 512 519) no Hoare annotation was computed. [2019-11-07 01:00:39,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:00:39 BoogieIcfgContainer [2019-11-07 01:00:39,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 01:00:39,189 INFO L168 Benchmark]: Toolchain (without parser) took 16111.62 ms. Allocated memory was 145.2 MB in the beginning and 441.5 MB in the end (delta: 296.2 MB). Free memory was 102.2 MB in the beginning and 161.3 MB in the end (delta: -59.1 MB). Peak memory consumption was 313.3 MB. Max. memory is 7.1 GB. [2019-11-07 01:00:39,190 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 01:00:39,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.89 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 166.1 MB in the end (delta: -64.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-11-07 01:00:39,192 INFO L168 Benchmark]: Boogie Preprocessor took 115.29 ms. Allocated memory is still 202.9 MB. Free memory was 166.1 MB in the beginning and 162.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-11-07 01:00:39,193 INFO L168 Benchmark]: RCFGBuilder took 1412.90 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 162.0 MB in the beginning and 188.3 MB in the end (delta: -26.3 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2019-11-07 01:00:39,194 INFO L168 Benchmark]: TraceAbstraction took 13821.94 ms. Allocated memory was 235.9 MB in the beginning and 441.5 MB in the end (delta: 205.5 MB). Free memory was 186.9 MB in the beginning and 161.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 307.3 MB. Max. memory is 7.1 GB. [2019-11-07 01:00:39,198 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.89 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 166.1 MB in the end (delta: -64.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.29 ms. Allocated memory is still 202.9 MB. Free memory was 166.1 MB in the beginning and 162.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1412.90 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 162.0 MB in the beginning and 188.3 MB in the end (delta: -26.3 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13821.94 ms. Allocated memory was 235.9 MB in the beginning and 441.5 MB in the end (delta: 205.5 MB). Free memory was 186.9 MB in the beginning and 161.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 307.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 516]: 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: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || (((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && pumpRunning == 0)) || ((1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 715]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 261 locations, 1 error locations. Result: SAFE, OverallTime: 13.7s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, HoareTripleCheckerStatistics: 2321 SDtfs, 1227 SDslu, 5669 SDs, 0 SdLazy, 1780 SolverSat, 348 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 714 GetRequests, 609 SyntacticMatches, 13 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=916occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 2056 PreInvPairs, 2154 NumberOfFragments, 1869 HoareAnnotationTreeSize, 2056 FomulaSimplifications, 1911 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 72 FomulaSimplificationsInter, 7450 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1336 NumberOfCodeBlocks, 1336 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1617 ConstructedInterpolants, 0 QuantifiedInterpolants, 309407 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1823 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 169/177 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...