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_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:20:44,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:20:44,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:20:44,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:20:44,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:20:44,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:20:44,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:20:44,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:20:44,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:20:44,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:20:44,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:20:44,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:20:44,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:20:44,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:20:44,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:20:44,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:20:44,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:20:44,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:20:44,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:20:44,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:20:44,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:20:44,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:20:44,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:20:44,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:20:44,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:20:44,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:20:44,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:20:44,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:20:44,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:20:44,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:20:44,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:20:44,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:20:44,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:20:44,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:20:44,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:20:44,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:20:44,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:20:44,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:20:44,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:20:44,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:20:44,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:20:44,967 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 [2019-10-13 21:20:44,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:20:44,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:20:44,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:20:44,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:20:44,988 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:20:44,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:20:44,988 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:20:44,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:20:44,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:20:44,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:20:44,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:20:44,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:20:44,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:20:44,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:20:44,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:20:44,991 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:20:44,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:20:44,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:20:44,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:20:44,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:20:44,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:20:44,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:20:44,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:20:44,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:20:44,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:20:44,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:20:44,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:20:44,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:20:44,994 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 [2019-10-13 21:20:45,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:20:45,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:20:45,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:20:45,277 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:20:45,278 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:20:45,278 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2019-10-13 21:20:45,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/468fcc295/947afa1089024c9bb865f9c10f7a1793/FLAG373c04c15 [2019-10-13 21:20:45,876 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:20:45,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2019-10-13 21:20:45,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/468fcc295/947afa1089024c9bb865f9c10f7a1793/FLAG373c04c15 [2019-10-13 21:20:46,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/468fcc295/947afa1089024c9bb865f9c10f7a1793 [2019-10-13 21:20:46,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:20:46,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:20:46,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:20:46,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:20:46,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:20:46,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4e076e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46, skipping insertion in model container [2019-10-13 21:20:46,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,210 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:20:46,249 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:20:46,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:20:46,699 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:20:46,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:20:46,837 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:20:46,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46 WrapperNode [2019-10-13 21:20:46,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:20:46,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:20:46,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:20:46,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:20:46,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (1/1) ... [2019-10-13 21:20:46,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:20:46,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:20:46,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:20:46,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:20:46,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (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 [2019-10-13 21:20:47,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:20:47,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:20:47,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:20:47,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:20:47,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:20:47,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:20:47,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:20:47,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:20:47,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:20:47,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:20:47,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:20:47,036 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:20:47,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:20:47,037 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:20:47,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:20:47,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:20:47,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:20:47,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:20:47,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:20:47,040 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 21:20:47,040 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:20:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:20:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:20:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:20:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:20:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:20:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:20:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:20:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:20:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:20:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:20:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:20:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:20:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:20:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:20:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:20:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:20:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:20:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:20:47,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:20:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:20:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:20:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:20:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:20:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:20:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:20:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:20:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:20:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:20:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:20:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:20:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:20:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:20:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:20:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:20:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:20:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:20:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:20:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:20:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:20:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:20:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:20:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:20:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:20:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:20:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:20:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:20:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:20:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:20:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:20:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:20:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:20:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:20:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:20:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:20:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:20:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:20:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:20:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:20:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:20:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:20:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:20:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:20:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:20:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:20:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:20:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:20:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:20:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 21:20:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:20:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:20:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:20:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:20:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:20:48,217 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:20:48,218 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:20:48,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:20:48 BoogieIcfgContainer [2019-10-13 21:20:48,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:20:48,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:20:48,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:20:48,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:20:48,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:20:46" (1/3) ... [2019-10-13 21:20:48,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1ee65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:20:48, skipping insertion in model container [2019-10-13 21:20:48,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:46" (2/3) ... [2019-10-13 21:20:48,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1ee65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:20:48, skipping insertion in model container [2019-10-13 21:20:48,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:20:48" (3/3) ... [2019-10-13 21:20:48,229 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2019-10-13 21:20:48,239 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:20:48,248 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:20:48,260 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:20:48,294 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:20:48,294 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:20:48,294 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:20:48,294 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:20:48,295 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:20:48,295 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:20:48,295 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:20:48,295 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:20:48,316 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2019-10-13 21:20:48,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 21:20:48,325 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:48,326 INFO L380 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] [2019-10-13 21:20:48,328 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:48,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:48,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1016037874, now seen corresponding path program 1 times [2019-10-13 21:20:48,343 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:48,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619399548] [2019-10-13 21:20:48,343 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:48,344 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:48,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:48,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619399548] [2019-10-13 21:20:48,728 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:48,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:20:48,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747230835] [2019-10-13 21:20:48,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:20:48,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:48,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:20:48,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:20:48,759 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 2 states. [2019-10-13 21:20:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:48,832 INFO L93 Difference]: Finished difference Result 266 states and 333 transitions. [2019-10-13 21:20:48,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:20:48,834 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-13 21:20:48,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:48,846 INFO L225 Difference]: With dead ends: 266 [2019-10-13 21:20:48,846 INFO L226 Difference]: Without dead ends: 135 [2019-10-13 21:20:48,851 INFO L600 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 [2019-10-13 21:20:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-13 21:20:48,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-10-13 21:20:48,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-10-13 21:20:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2019-10-13 21:20:48,903 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 51 [2019-10-13 21:20:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:48,904 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2019-10-13 21:20:48,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:20:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2019-10-13 21:20:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 21:20:48,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:48,909 INFO L380 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] [2019-10-13 21:20:48,909 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:48,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:48,909 INFO L82 PathProgramCache]: Analyzing trace with hash 2062541652, now seen corresponding path program 1 times [2019-10-13 21:20:48,910 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:48,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009313863] [2019-10-13 21:20:48,910 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:48,910 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:48,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:49,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009313863] [2019-10-13 21:20:49,046 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:49,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:20:49,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263559710] [2019-10-13 21:20:49,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:20:49,049 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:49,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:20:49,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:20:49,051 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 3 states. [2019-10-13 21:20:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:49,090 INFO L93 Difference]: Finished difference Result 215 states and 255 transitions. [2019-10-13 21:20:49,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:20:49,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-13 21:20:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:49,093 INFO L225 Difference]: With dead ends: 215 [2019-10-13 21:20:49,093 INFO L226 Difference]: Without dead ends: 126 [2019-10-13 21:20:49,096 INFO L600 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 [2019-10-13 21:20:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-13 21:20:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-13 21:20:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-13 21:20:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2019-10-13 21:20:49,110 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 52 [2019-10-13 21:20:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:49,110 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2019-10-13 21:20:49,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:20:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2019-10-13 21:20:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 21:20:49,113 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:49,113 INFO L380 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] [2019-10-13 21:20:49,113 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:49,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:49,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1086390402, now seen corresponding path program 1 times [2019-10-13 21:20:49,114 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:49,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509498932] [2019-10-13 21:20:49,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:49,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509498932] [2019-10-13 21:20:49,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:49,288 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:20:49,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562128251] [2019-10-13 21:20:49,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:20:49,289 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:49,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:20:49,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:49,289 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 7 states. [2019-10-13 21:20:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:49,643 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-10-13 21:20:49,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:20:49,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 21:20:49,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:49,646 INFO L225 Difference]: With dead ends: 224 [2019-10-13 21:20:49,646 INFO L226 Difference]: Without dead ends: 126 [2019-10-13 21:20:49,648 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:20:49,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-13 21:20:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-13 21:20:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-13 21:20:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2019-10-13 21:20:49,663 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 56 [2019-10-13 21:20:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:49,663 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2019-10-13 21:20:49,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:20:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2019-10-13 21:20:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-13 21:20:49,666 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:49,666 INFO L380 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] [2019-10-13 21:20:49,667 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:49,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:49,667 INFO L82 PathProgramCache]: Analyzing trace with hash -848651131, now seen corresponding path program 1 times [2019-10-13 21:20:49,667 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:49,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736306279] [2019-10-13 21:20:49,668 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,668 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:49,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736306279] [2019-10-13 21:20:49,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:49,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:20:49,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554524411] [2019-10-13 21:20:49,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:20:49,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:20:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:20:49,837 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 5 states. [2019-10-13 21:20:50,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:50,314 INFO L93 Difference]: Finished difference Result 327 states and 398 transitions. [2019-10-13 21:20:50,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:20:50,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-13 21:20:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:50,323 INFO L225 Difference]: With dead ends: 327 [2019-10-13 21:20:50,323 INFO L226 Difference]: Without dead ends: 229 [2019-10-13 21:20:50,327 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:20:50,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-10-13 21:20:50,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 211. [2019-10-13 21:20:50,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-13 21:20:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 243 transitions. [2019-10-13 21:20:50,373 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 243 transitions. Word has length 69 [2019-10-13 21:20:50,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:50,379 INFO L462 AbstractCegarLoop]: Abstraction has 211 states and 243 transitions. [2019-10-13 21:20:50,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:20:50,380 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 243 transitions. [2019-10-13 21:20:50,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 21:20:50,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:50,386 INFO L380 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] [2019-10-13 21:20:50,386 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:50,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:50,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1442987939, now seen corresponding path program 1 times [2019-10-13 21:20:50,387 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:50,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948014979] [2019-10-13 21:20:50,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:50,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948014979] [2019-10-13 21:20:50,539 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:50,539 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:20:50,540 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107517485] [2019-10-13 21:20:50,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:20:50,540 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:50,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:20:50,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:20:50,541 INFO L87 Difference]: Start difference. First operand 211 states and 243 transitions. Second operand 6 states. [2019-10-13 21:20:50,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:50,768 INFO L93 Difference]: Finished difference Result 559 states and 665 transitions. [2019-10-13 21:20:50,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:50,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-10-13 21:20:50,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:50,775 INFO L225 Difference]: With dead ends: 559 [2019-10-13 21:20:50,775 INFO L226 Difference]: Without dead ends: 376 [2019-10-13 21:20:50,776 INFO L600 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 [2019-10-13 21:20:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-10-13 21:20:50,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 370. [2019-10-13 21:20:50,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2019-10-13 21:20:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 426 transitions. [2019-10-13 21:20:50,813 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 426 transitions. Word has length 83 [2019-10-13 21:20:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:50,813 INFO L462 AbstractCegarLoop]: Abstraction has 370 states and 426 transitions. [2019-10-13 21:20:50,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:20:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 426 transitions. [2019-10-13 21:20:50,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 21:20:50,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:50,815 INFO L380 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] [2019-10-13 21:20:50,816 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:50,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:50,816 INFO L82 PathProgramCache]: Analyzing trace with hash -142547263, now seen corresponding path program 1 times [2019-10-13 21:20:50,816 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:50,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410226061] [2019-10-13 21:20:50,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:50,907 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410226061] [2019-10-13 21:20:50,908 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:50,908 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:20:50,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047714322] [2019-10-13 21:20:50,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:20:50,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:50,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:20:50,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:50,910 INFO L87 Difference]: Start difference. First operand 370 states and 426 transitions. Second operand 7 states. [2019-10-13 21:20:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:51,522 INFO L93 Difference]: Finished difference Result 741 states and 876 transitions. [2019-10-13 21:20:51,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:20:51,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-10-13 21:20:51,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:51,526 INFO L225 Difference]: With dead ends: 741 [2019-10-13 21:20:51,526 INFO L226 Difference]: Without dead ends: 399 [2019-10-13 21:20:51,527 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:20:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-13 21:20:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 369. [2019-10-13 21:20:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-10-13 21:20:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 423 transitions. [2019-10-13 21:20:51,555 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 423 transitions. Word has length 87 [2019-10-13 21:20:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:51,556 INFO L462 AbstractCegarLoop]: Abstraction has 369 states and 423 transitions. [2019-10-13 21:20:51,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:20:51,556 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 423 transitions. [2019-10-13 21:20:51,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 21:20:51,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:51,558 INFO L380 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] [2019-10-13 21:20:51,558 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:51,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:51,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1138633269, now seen corresponding path program 1 times [2019-10-13 21:20:51,559 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:51,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253476960] [2019-10-13 21:20:51,559 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:51,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:20:51,630 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253476960] [2019-10-13 21:20:51,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:51,631 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:20:51,631 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881514361] [2019-10-13 21:20:51,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:20:51,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:51,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:20:51,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:20:51,632 INFO L87 Difference]: Start difference. First operand 369 states and 423 transitions. Second operand 6 states. [2019-10-13 21:20:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:51,672 INFO L93 Difference]: Finished difference Result 724 states and 850 transitions. [2019-10-13 21:20:51,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:20:51,673 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2019-10-13 21:20:51,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:51,675 INFO L225 Difference]: With dead ends: 724 [2019-10-13 21:20:51,675 INFO L226 Difference]: Without dead ends: 383 [2019-10-13 21:20:51,677 INFO L600 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 [2019-10-13 21:20:51,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-10-13 21:20:51,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 379. [2019-10-13 21:20:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-13 21:20:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 433 transitions. [2019-10-13 21:20:51,699 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 433 transitions. Word has length 103 [2019-10-13 21:20:51,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:51,700 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 433 transitions. [2019-10-13 21:20:51,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:20:51,700 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 433 transitions. [2019-10-13 21:20:51,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 21:20:51,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:51,702 INFO L380 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] [2019-10-13 21:20:51,702 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:51,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:51,702 INFO L82 PathProgramCache]: Analyzing trace with hash 789639433, now seen corresponding path program 1 times [2019-10-13 21:20:51,703 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:51,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126549069] [2019-10-13 21:20:51,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:20:51,782 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126549069] [2019-10-13 21:20:51,783 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:51,783 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:20:51,783 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415772316] [2019-10-13 21:20:51,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:20:51,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:51,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:20:51,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:20:51,785 INFO L87 Difference]: Start difference. First operand 379 states and 433 transitions. Second operand 8 states. [2019-10-13 21:20:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:51,833 INFO L93 Difference]: Finished difference Result 744 states and 872 transitions. [2019-10-13 21:20:51,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:51,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-13 21:20:51,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:51,836 INFO L225 Difference]: With dead ends: 744 [2019-10-13 21:20:51,837 INFO L226 Difference]: Without dead ends: 393 [2019-10-13 21:20:51,838 INFO L600 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 [2019-10-13 21:20:51,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-10-13 21:20:51,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 387. [2019-10-13 21:20:51,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2019-10-13 21:20:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 441 transitions. [2019-10-13 21:20:51,858 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 441 transitions. Word has length 103 [2019-10-13 21:20:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:51,859 INFO L462 AbstractCegarLoop]: Abstraction has 387 states and 441 transitions. [2019-10-13 21:20:51,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:20:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 441 transitions. [2019-10-13 21:20:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 21:20:51,861 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:51,861 INFO L380 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] [2019-10-13 21:20:51,861 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:51,862 INFO L82 PathProgramCache]: Analyzing trace with hash 549099304, now seen corresponding path program 1 times [2019-10-13 21:20:51,862 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:51,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508152139] [2019-10-13 21:20:51,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:20:51,938 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508152139] [2019-10-13 21:20:51,939 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:51,939 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:20:51,940 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292914965] [2019-10-13 21:20:51,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:20:51,940 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:51,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:20:51,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:20:51,941 INFO L87 Difference]: Start difference. First operand 387 states and 441 transitions. Second operand 4 states. [2019-10-13 21:20:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:52,180 INFO L93 Difference]: Finished difference Result 1132 states and 1360 transitions. [2019-10-13 21:20:52,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:20:52,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2019-10-13 21:20:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:52,188 INFO L225 Difference]: With dead ends: 1132 [2019-10-13 21:20:52,188 INFO L226 Difference]: Without dead ends: 773 [2019-10-13 21:20:52,189 INFO L600 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 [2019-10-13 21:20:52,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2019-10-13 21:20:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 758. [2019-10-13 21:20:52,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2019-10-13 21:20:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 891 transitions. [2019-10-13 21:20:52,241 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 891 transitions. Word has length 103 [2019-10-13 21:20:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:52,242 INFO L462 AbstractCegarLoop]: Abstraction has 758 states and 891 transitions. [2019-10-13 21:20:52,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:20:52,243 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 891 transitions. [2019-10-13 21:20:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 21:20:52,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:52,246 INFO L380 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] [2019-10-13 21:20:52,246 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:52,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:52,246 INFO L82 PathProgramCache]: Analyzing trace with hash 290063790, now seen corresponding path program 1 times [2019-10-13 21:20:52,247 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:52,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902296154] [2019-10-13 21:20:52,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:20:52,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902296154] [2019-10-13 21:20:52,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626397785] [2019-10-13 21:20:52,397 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 [2019-10-13 21:20:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:52,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:20:52,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:52,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:52,853 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:20:53,735 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:53,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-13 21:20:53,735 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401142416] [2019-10-13 21:20:53,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:20:53,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:53,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:20:53,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:53,741 INFO L87 Difference]: Start difference. First operand 758 states and 891 transitions. Second operand 8 states. [2019-10-13 21:20:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:54,056 INFO L93 Difference]: Finished difference Result 1459 states and 1726 transitions. [2019-10-13 21:20:54,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:54,057 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2019-10-13 21:20:54,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:54,062 INFO L225 Difference]: With dead ends: 1459 [2019-10-13 21:20:54,062 INFO L226 Difference]: Without dead ends: 729 [2019-10-13 21:20:54,064 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 197 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:54,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2019-10-13 21:20:54,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2019-10-13 21:20:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2019-10-13 21:20:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 843 transitions. [2019-10-13 21:20:54,107 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 843 transitions. Word has length 107 [2019-10-13 21:20:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:54,108 INFO L462 AbstractCegarLoop]: Abstraction has 729 states and 843 transitions. [2019-10-13 21:20:54,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:20:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 843 transitions. [2019-10-13 21:20:54,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 21:20:54,111 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:54,111 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:20:54,316 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:54,317 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:54,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:54,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1933824326, now seen corresponding path program 1 times [2019-10-13 21:20:54,318 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:54,318 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790482619] [2019-10-13 21:20:54,319 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:54,319 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:54,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:20:54,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790482619] [2019-10-13 21:20:54,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564502525] [2019-10-13 21:20:54,565 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 [2019-10-13 21:20:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:54,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:20:54,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 21:20:55,073 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:55,615 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:20:55,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:55,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-13 21:20:55,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141874316] [2019-10-13 21:20:55,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:20:55,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:55,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:20:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:55,618 INFO L87 Difference]: Start difference. First operand 729 states and 843 transitions. Second operand 8 states. [2019-10-13 21:20:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:55,990 INFO L93 Difference]: Finished difference Result 1229 states and 1438 transitions. [2019-10-13 21:20:55,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:55,990 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 158 [2019-10-13 21:20:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:55,991 INFO L225 Difference]: With dead ends: 1229 [2019-10-13 21:20:55,991 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:20:55,995 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 301 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:20:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:20:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:20:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:20:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:20:55,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2019-10-13 21:20:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:55,996 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:20:55,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:20:55,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:20:55,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:20:56,203 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:56,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:20:57,173 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2019-10-13 21:20:57,360 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 25 [2019-10-13 21:20:57,700 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2019-10-13 21:20:57,987 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2019-10-13 21:20:58,255 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 20 [2019-10-13 21:20:58,880 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2019-10-13 21:20:59,497 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2019-10-13 21:20:59,707 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 127) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point L139(lines 116 140) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2019-10-13 21:20:59,708 INFO L443 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point L193-1(line 193) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 184) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2019-10-13 21:20:59,709 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2019-10-13 21:20:59,710 INFO L443 ceAbstractionStarter]: For program point L200(lines 173 201) no Hoare annotation was computed. [2019-10-13 21:20:59,710 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 902 908) the Hoare annotation is: true [2019-10-13 21:20:59,710 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 902 908) no Hoare annotation was computed. [2019-10-13 21:20:59,710 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 909 917) no Hoare annotation was computed. [2019-10-13 21:20:59,710 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 909 917) the Hoare annotation is: true [2019-10-13 21:20:59,710 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 909 917) no Hoare annotation was computed. [2019-10-13 21:20:59,711 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 497 519) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,711 INFO L439 ceAbstractionStarter]: At program point L509(line 509) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,711 INFO L439 ceAbstractionStarter]: At program point L509-1(line 509) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,711 INFO L443 ceAbstractionStarter]: For program point L507(lines 507 514) no Hoare annotation was computed. [2019-10-13 21:20:59,711 INFO L443 ceAbstractionStarter]: For program point L507-1(lines 507 514) no Hoare annotation was computed. [2019-10-13 21:20:59,712 INFO L443 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2019-10-13 21:20:59,712 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 497 519) no Hoare annotation was computed. [2019-10-13 21:20:59,712 INFO L439 ceAbstractionStarter]: At program point L504(line 504) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,712 INFO L439 ceAbstractionStarter]: At program point L503(line 503) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,712 INFO L439 ceAbstractionStarter]: At program point L503-1(line 503) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 497 519) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 450 473) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 450 473) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 450 473) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point L468(line 468) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point L465(line 465) no Hoare annotation was computed. [2019-10-13 21:20:59,713 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L462(line 462) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L459(line 459) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2019-10-13 21:20:59,714 INFO L443 ceAbstractionStarter]: For program point L456(line 456) no Hoare annotation was computed. [2019-10-13 21:20:59,715 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-10-13 21:20:59,715 INFO L439 ceAbstractionStarter]: At program point L574(line 574) 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)))) [2019-10-13 21:20:59,715 INFO L443 ceAbstractionStarter]: For program point L572(lines 572 580) no Hoare annotation was computed. [2019-10-13 21:20:59,715 INFO L439 ceAbstractionStarter]: At program point L570(line 570) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) (not .cse2) .cse0))) [2019-10-13 21:20:59,715 INFO L443 ceAbstractionStarter]: For program point L570-1(line 570) no Hoare annotation was computed. [2019-10-13 21:20:59,715 INFO L443 ceAbstractionStarter]: For program point L568(lines 568 585) no Hoare annotation was computed. [2019-10-13 21:20:59,716 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 564 588) 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)|)))) [2019-10-13 21:20:59,716 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 564 588) no Hoare annotation was computed. [2019-10-13 21:20:59,716 INFO L439 ceAbstractionStarter]: At program point L583(line 583) 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)|)))) [2019-10-13 21:20:59,716 INFO L443 ceAbstractionStarter]: For program point L583-1(lines 564 588) no Hoare annotation was computed. [2019-10-13 21:20:59,716 INFO L439 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= processEnvironment__wrappee__methaneQuery_~tmp~4 0) (= ~pumpRunning~0 0))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 1 ~methaneLevelCritical~0)) (not .cse2) .cse3 .cse0) (or .cse3 .cse0 .cse1))) [2019-10-13 21:20:59,717 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 659 667) no Hoare annotation was computed. [2019-10-13 21:20:59,717 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 659 667) the Hoare annotation is: true [2019-10-13 21:20:59,717 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 659 667) no Hoare annotation was computed. [2019-10-13 21:20:59,717 INFO L443 ceAbstractionStarter]: For program point L675-2(lines 675 683) no Hoare annotation was computed. [2019-10-13 21:20:59,717 INFO L443 ceAbstractionStarter]: For program point L698(line 698) no Hoare annotation was computed. [2019-10-13 21:20:59,717 INFO L443 ceAbstractionStarter]: For program point L698-1(line 698) no Hoare annotation was computed. [2019-10-13 21:20:59,717 INFO L443 ceAbstractionStarter]: For program point L687(lines 687 695) no Hoare annotation was computed. [2019-10-13 21:20:59,717 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 668 703) no Hoare annotation was computed. [2019-10-13 21:20:59,718 INFO L443 ceAbstractionStarter]: For program point L687-2(lines 687 695) no Hoare annotation was computed. [2019-10-13 21:20:59,718 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 668 703) no Hoare annotation was computed. [2019-10-13 21:20:59,718 INFO L443 ceAbstractionStarter]: For program point L675(lines 675 683) no Hoare annotation was computed. [2019-10-13 21:20:59,718 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 668 703) no Hoare annotation was computed. [2019-10-13 21:20:59,718 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 895 901) no Hoare annotation was computed. [2019-10-13 21:20:59,718 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 895 901) the Hoare annotation is: true [2019-10-13 21:20:59,718 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2019-10-13 21:20:59,718 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L443 ceAbstractionStarter]: For program point L379(lines 379 386) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L443 ceAbstractionStarter]: For program point L373(lines 373 393) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L443 ceAbstractionStarter]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2019-10-13 21:20:59,719 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 483 493) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,720 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 483 493) no Hoare annotation was computed. [2019-10-13 21:20:59,720 INFO L439 ceAbstractionStarter]: At program point L488(line 488) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,720 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 483 493) no Hoare annotation was computed. [2019-10-13 21:20:59,720 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 648 658) the Hoare annotation is: true [2019-10-13 21:20:59,720 INFO L446 ceAbstractionStarter]: At program point L653(line 653) the Hoare annotation is: true [2019-10-13 21:20:59,720 INFO L443 ceAbstractionStarter]: For program point L653-1(line 653) no Hoare annotation was computed. [2019-10-13 21:20:59,720 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 648 658) no Hoare annotation was computed. [2019-10-13 21:20:59,721 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 648 658) no Hoare annotation was computed. [2019-10-13 21:20:59,721 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 640 647) 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))) [2019-10-13 21:20:59,721 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 640 647) no Hoare annotation was computed. [2019-10-13 21:20:59,721 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 640 647) no Hoare annotation was computed. [2019-10-13 21:20:59,721 INFO L443 ceAbstractionStarter]: For program point L873(lines 873 879) no Hoare annotation was computed. [2019-10-13 21:20:59,721 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 869 882) no Hoare annotation was computed. [2019-10-13 21:20:59,721 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 869 882) the Hoare annotation is: true [2019-10-13 21:20:59,721 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 869 882) no Hoare annotation was computed. [2019-10-13 21:20:59,722 INFO L439 ceAbstractionStarter]: At program point L609(line 609) 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))) [2019-10-13 21:20:59,722 INFO L443 ceAbstractionStarter]: For program point L609-1(lines 590 614) no Hoare annotation was computed. [2019-10-13 21:20:59,722 INFO L439 ceAbstractionStarter]: At program point L604(line 604) 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)|)))) [2019-10-13 21:20:59,722 INFO L439 ceAbstractionStarter]: At program point L600(line 600) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 .cse4) (or .cse3 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~5) .cse4) .cse1))) [2019-10-13 21:20:59,722 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 590 614) no Hoare annotation was computed. [2019-10-13 21:20:59,722 INFO L443 ceAbstractionStarter]: For program point L598(lines 598 606) no Hoare annotation was computed. [2019-10-13 21:20:59,723 INFO L439 ceAbstractionStarter]: At program point L596(line 596) 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))) [2019-10-13 21:20:59,723 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 590 614) 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))) [2019-10-13 21:20:59,723 INFO L443 ceAbstractionStarter]: For program point L596-1(line 596) no Hoare annotation was computed. [2019-10-13 21:20:59,723 INFO L443 ceAbstractionStarter]: For program point L594(lines 594 611) no Hoare annotation was computed. [2019-10-13 21:20:59,723 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 556 562) no Hoare annotation was computed. [2019-10-13 21:20:59,723 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 556 562) the Hoare annotation is: true [2019-10-13 21:20:59,723 INFO L439 ceAbstractionStarter]: At program point L770-2(lines 764 775) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:59,724 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 724 787) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,724 INFO L443 ceAbstractionStarter]: For program point L735(lines 734 779) no Hoare annotation was computed. [2019-10-13 21:20:59,724 INFO L443 ceAbstractionStarter]: For program point L764(lines 764 775) no Hoare annotation was computed. [2019-10-13 21:20:59,724 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 724 787) no Hoare annotation was computed. [2019-10-13 21:20:59,724 INFO L439 ceAbstractionStarter]: At program point L756(line 756) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~methaneLevelCritical~0) (= ~pumpRunning~0 0)) (and (= 0 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:59,724 INFO L443 ceAbstractionStarter]: For program point L754(lines 754 760) no Hoare annotation was computed. [2019-10-13 21:20:59,724 INFO L443 ceAbstractionStarter]: For program point L754-1(lines 754 760) no Hoare annotation was computed. [2019-10-13 21:20:59,725 INFO L439 ceAbstractionStarter]: At program point L746(line 746) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (and (<= 1 ~methaneLevelCritical~0) (and .cse0 (= ~pumpRunning~0 0))) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:59,725 INFO L439 ceAbstractionStarter]: At program point L777(lines 734 779) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~methaneLevelCritical~0) (= ~pumpRunning~0 0)) (and (= 0 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:20:59,725 INFO L443 ceAbstractionStarter]: For program point L744(lines 744 750) no Hoare annotation was computed. [2019-10-13 21:20:59,725 INFO L443 ceAbstractionStarter]: For program point L744-1(lines 744 750) no Hoare annotation was computed. [2019-10-13 21:20:59,725 INFO L443 ceAbstractionStarter]: For program point L736(lines 736 740) no Hoare annotation was computed. [2019-10-13 21:20:59,725 INFO L439 ceAbstractionStarter]: At program point L780(lines 733 781) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:20:59,725 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 724 787) no Hoare annotation was computed. [2019-10-13 21:20:59,726 INFO L443 ceAbstractionStarter]: For program point L770(lines 770 774) no Hoare annotation was computed. [2019-10-13 21:20:59,726 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2019-10-13 21:20:59,726 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2019-10-13 21:20:59,726 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2019-10-13 21:20:59,726 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 340) no Hoare annotation was computed. [2019-10-13 21:20:59,726 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 347) no Hoare annotation was computed. [2019-10-13 21:20:59,726 INFO L443 ceAbstractionStarter]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2019-10-13 21:20:59,727 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 615 622) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 0)) [2019-10-13 21:20:59,727 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 615 622) no Hoare annotation was computed. [2019-10-13 21:20:59,727 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 615 622) no Hoare annotation was computed. [2019-10-13 21:20:59,727 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 928 956) the Hoare annotation is: true [2019-10-13 21:20:59,727 INFO L439 ceAbstractionStarter]: At program point L943(line 943) 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))))) [2019-10-13 21:20:59,727 INFO L443 ceAbstractionStarter]: For program point L941(lines 941 947) no Hoare annotation was computed. [2019-10-13 21:20:59,727 INFO L443 ceAbstractionStarter]: For program point L940(lines 940 950) no Hoare annotation was computed. [2019-10-13 21:20:59,727 INFO L439 ceAbstractionStarter]: At program point L938(line 938) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2019-10-13 21:20:59,728 INFO L443 ceAbstractionStarter]: For program point L938-1(line 938) no Hoare annotation was computed. [2019-10-13 21:20:59,728 INFO L443 ceAbstractionStarter]: For program point L936(lines 936 953) no Hoare annotation was computed. [2019-10-13 21:20:59,728 INFO L443 ceAbstractionStarter]: For program point L936-1(lines 928 956) no Hoare annotation was computed. [2019-10-13 21:20:59,728 INFO L446 ceAbstractionStarter]: At program point L934(line 934) the Hoare annotation is: true [2019-10-13 21:20:59,728 INFO L443 ceAbstractionStarter]: For program point L934-1(line 934) no Hoare annotation was computed. [2019-10-13 21:20:59,728 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 928 956) no Hoare annotation was computed. [2019-10-13 21:20:59,728 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 920 927) the Hoare annotation is: true [2019-10-13 21:20:59,728 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 920 927) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 920 927) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point L845(lines 845 853) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point L845-2(lines 845 853) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 837 859) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 837 859) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 837 859) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 297) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2019-10-13 21:20:59,729 INFO L443 ceAbstractionStarter]: For program point L275(line 275) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point L275-1(line 275) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 238) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point L298(lines 298 309) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 265) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point L280(lines 258 281) no Hoare annotation was computed. [2019-10-13 21:20:59,730 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point L239(lines 239 255) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 306) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point L260(lines 259 279) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point L291(line 291) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point L291-1(line 291) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 885 894) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 885 894) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 885 894) no Hoare annotation was computed. [2019-10-13 21:20:59,731 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:20:59,732 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2019-10-13 21:20:59,732 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:20:59,732 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 623 639) no Hoare annotation was computed. [2019-10-13 21:20:59,732 INFO L439 ceAbstractionStarter]: At program point L634(line 634) 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))) [2019-10-13 21:20:59,732 INFO L443 ceAbstractionStarter]: For program point L634-1(lines 623 639) no Hoare annotation was computed. [2019-10-13 21:20:59,732 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 623 639) 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))) [2019-10-13 21:20:59,732 INFO L443 ceAbstractionStarter]: For program point L630(lines 630 636) no Hoare annotation was computed. [2019-10-13 21:20:59,733 INFO L439 ceAbstractionStarter]: At program point L628(line 628) 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))) [2019-10-13 21:20:59,733 INFO L443 ceAbstractionStarter]: For program point L628-1(line 628) no Hoare annotation was computed. [2019-10-13 21:20:59,733 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 704 722) no Hoare annotation was computed. [2019-10-13 21:20:59,733 INFO L443 ceAbstractionStarter]: For program point L713(lines 713 717) no Hoare annotation was computed. [2019-10-13 21:20:59,733 INFO L446 ceAbstractionStarter]: At program point L711(line 711) the Hoare annotation is: true [2019-10-13 21:20:59,733 INFO L443 ceAbstractionStarter]: For program point L713-2(lines 713 717) no Hoare annotation was computed. [2019-10-13 21:20:59,733 INFO L443 ceAbstractionStarter]: For program point L711-1(line 711) no Hoare annotation was computed. [2019-10-13 21:20:59,733 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 704 722) the Hoare annotation is: true [2019-10-13 21:20:59,734 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 704 722) no Hoare annotation was computed. [2019-10-13 21:20:59,734 INFO L443 ceAbstractionStarter]: For program point getWaterLevelENTRY(lines 860 868) no Hoare annotation was computed. [2019-10-13 21:20:59,734 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 860 868) no Hoare annotation was computed. [2019-10-13 21:20:59,734 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 860 868) no Hoare annotation was computed. [2019-10-13 21:20:59,734 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:20:59,734 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:20:59,734 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:20:59,735 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 816 827) 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))) [2019-10-13 21:20:59,735 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 816 827) no Hoare annotation was computed. [2019-10-13 21:20:59,735 INFO L443 ceAbstractionStarter]: For program point L820-1(lines 816 827) no Hoare annotation was computed. [2019-10-13 21:20:59,735 INFO L439 ceAbstractionStarter]: At program point L545(line 545) 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)))) [2019-10-13 21:20:59,735 INFO L439 ceAbstractionStarter]: At program point L543(lines 543 549) 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))))) [2019-10-13 21:20:59,736 INFO L439 ceAbstractionStarter]: At program point L538(line 538) 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)))) [2019-10-13 21:20:59,736 INFO L443 ceAbstractionStarter]: For program point L536(lines 535 554) no Hoare annotation was computed. [2019-10-13 21:20:59,736 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 532 555) 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)))) [2019-10-13 21:20:59,736 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 532 555) no Hoare annotation was computed. [2019-10-13 21:20:59,736 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 532 555) no Hoare annotation was computed. [2019-10-13 21:20:59,736 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 417 446) no Hoare annotation was computed. [2019-10-13 21:20:59,736 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 417 446) the Hoare annotation is: true [2019-10-13 21:20:59,737 INFO L446 ceAbstractionStarter]: At program point L442(lines 417 446) the Hoare annotation is: true [2019-10-13 21:20:59,737 INFO L443 ceAbstractionStarter]: For program point L438(line 438) no Hoare annotation was computed. [2019-10-13 21:20:59,737 INFO L443 ceAbstractionStarter]: For program point L431(lines 431 435) no Hoare annotation was computed. [2019-10-13 21:20:59,737 INFO L446 ceAbstractionStarter]: At program point L431-1(lines 431 435) the Hoare annotation is: true [2019-10-13 21:20:59,737 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-10-13 21:20:59,737 INFO L446 ceAbstractionStarter]: At program point L427-2(lines 427 441) the Hoare annotation is: true [2019-10-13 21:20:59,737 INFO L446 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: true [2019-10-13 21:20:59,737 INFO L443 ceAbstractionStarter]: For program point L423-1(line 423) no Hoare annotation was computed. [2019-10-13 21:20:59,738 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 828 836) the Hoare annotation is: true [2019-10-13 21:20:59,738 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 828 836) no Hoare annotation was computed. [2019-10-13 21:20:59,738 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 828 836) no Hoare annotation was computed. [2019-10-13 21:20:59,738 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 792 803) the Hoare annotation is: true [2019-10-13 21:20:59,738 INFO L443 ceAbstractionStarter]: For program point L796-1(lines 792 803) no Hoare annotation was computed. [2019-10-13 21:20:59,738 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 792 803) no Hoare annotation was computed. [2019-10-13 21:20:59,738 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 474 480) no Hoare annotation was computed. [2019-10-13 21:20:59,738 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 474 480) the Hoare annotation is: true [2019-10-13 21:20:59,738 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:20:59,739 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)) [2019-10-13 21:20:59,739 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:20:59,739 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:20:59,739 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 804 815) no Hoare annotation was computed. [2019-10-13 21:20:59,739 INFO L443 ceAbstractionStarter]: For program point L808-1(lines 804 815) no Hoare annotation was computed. [2019-10-13 21:20:59,739 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 804 815) 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))) [2019-10-13 21:20:59,739 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 406 413) no Hoare annotation was computed. [2019-10-13 21:20:59,739 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 406 413) the Hoare annotation is: true [2019-10-13 21:20:59,740 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 410) no Hoare annotation was computed. [2019-10-13 21:20:59,740 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 406 413) no Hoare annotation was computed. [2019-10-13 21:20:59,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:20:59 BoogieIcfgContainer [2019-10-13 21:20:59,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:20:59,755 INFO L168 Benchmark]: Toolchain (without parser) took 13566.33 ms. Allocated memory was 146.3 MB in the beginning and 405.3 MB in the end (delta: 259.0 MB). Free memory was 102.0 MB in the beginning and 310.0 MB in the end (delta: -207.9 MB). Peak memory consumption was 272.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:59,756 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 21:20:59,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.07 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.8 MB in the beginning and 171.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:59,758 INFO L168 Benchmark]: Boogie Preprocessor took 107.75 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:59,759 INFO L168 Benchmark]: RCFGBuilder took 1272.76 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 166.6 MB in the beginning and 192.6 MB in the end (delta: -26.0 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:59,759 INFO L168 Benchmark]: TraceAbstraction took 11532.13 ms. Allocated memory was 235.4 MB in the beginning and 405.3 MB in the end (delta: 169.9 MB). Free memory was 192.6 MB in the beginning and 310.0 MB in the end (delta: -117.3 MB). Peak memory consumption was 273.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:20:59,763 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.07 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.8 MB in the beginning and 171.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.75 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.76 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 166.6 MB in the beginning and 192.6 MB in the end (delta: -26.0 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11532.13 ms. Allocated memory was 235.4 MB in the beginning and 405.3 MB in the end (delta: 169.9 MB). Free memory was 192.6 MB in the beginning and 310.0 MB in the end (delta: -117.3 MB). Peak memory consumption was 273.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 410]: 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: 734]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || ((0 == splverifierCounter && 1 <= methaneLevelCritical) && pumpRunning == 0)) || (0 == methaneLevelCritical && 0 == splverifierCounter)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 733]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 417]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 237 locations, 1 error locations. Result: SAFE, OverallTime: 11.4s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, HoareTripleCheckerStatistics: 1935 SDtfs, 953 SDslu, 4575 SDs, 0 SdLazy, 1500 SolverSat, 247 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 645 GetRequests, 541 SyntacticMatches, 12 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=758occurred 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: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 1654 PreInvPairs, 1742 NumberOfFragments, 1566 HoareAnnotationTreeSize, 1654 FomulaSimplifications, 1582 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 62 FomulaSimplificationsInter, 6251 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1237 NumberOfCodeBlocks, 1237 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1487 ConstructedInterpolants, 0 QuantifiedInterpolants, 257640 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1718 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 154/162 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...