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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:20:46,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:20:46,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:20:46,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:20:46,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:20:46,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:20:46,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:20:46,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:20:46,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:20:46,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:20:46,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:20:46,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:20:46,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:20:46,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:20:46,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:20:46,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:20:46,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:20:46,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:20:46,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:20:46,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:20:46,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:20:46,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:20:46,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:20:46,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:20:46,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:20:46,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:20:46,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:20:46,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:20:46,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:20:46,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:20:46,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:20:46,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:20:46,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:20:46,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:20:46,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:20:46,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:20:46,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:20:46,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:20:46,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:20:46,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:20:46,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:20:46,102 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 21:20:46,117 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:20:46,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:20:46,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:20:46,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:20:46,119 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:20:46,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:20:46,119 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:20:46,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:20:46,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:20:46,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:20:46,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:20:46,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:20:46,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:20:46,121 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:20:46,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:20:46,121 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:20:46,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:20:46,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:20:46,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:20:46,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:20:46,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:20:46,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:20:46,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:20:46,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:20:46,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:20:46,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:20:46,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:20:46,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:20:46,124 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 21:20:46,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:20:46,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:20:46,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:20:46,413 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:20:46,414 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:20:46,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-10-13 21:20:46,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38eac687/9eb8a9bebd0741ad959ebb3d24703906/FLAG14909dc3f [2019-10-13 21:20:47,008 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:20:47,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-10-13 21:20:47,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38eac687/9eb8a9bebd0741ad959ebb3d24703906/FLAG14909dc3f [2019-10-13 21:20:47,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38eac687/9eb8a9bebd0741ad959ebb3d24703906 [2019-10-13 21:20:47,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:20:47,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:20:47,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:20:47,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:20:47,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:20:47,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:47,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240d376e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47, skipping insertion in model container [2019-10-13 21:20:47,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:47,337 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:20:47,374 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:20:47,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:20:47,851 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:20:47,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:20:47,965 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:20:47,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47 WrapperNode [2019-10-13 21:20:47,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:20:47,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:20:47,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:20:47,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:20:47,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:47,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:48,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:48,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:48,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:48,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:48,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (1/1) ... [2019-10-13 21:20:48,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:20:48,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:20:48,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:20:48,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:20:48,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (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 21:20:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:20:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:20:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:20:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:20:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:20:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:20:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:20:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:20:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:20:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:20:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:20:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:20:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:20:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:20:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:20:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:20:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:20:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:20:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:20:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:20:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:20:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:20:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:20:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:20:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:20:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:20:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:20:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:20:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:20:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:20:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:20:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:20:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:20:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:20:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:20:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:20:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:20:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:20:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:20:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:20:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:20:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:20:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:20:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:20:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:20:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:20:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:20:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:20:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:20:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:20:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:20:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:20:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:20:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:20:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:20:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:20:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:20:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:20:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:20:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:20:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:20:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:20:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:20:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:20:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:20:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:20:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:20:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:20:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:20:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:20:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:20:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:20:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:20:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:20:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:20:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:20:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:20:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:20:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:20:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:20:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:20:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:20:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:20:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:20:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:20:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:20:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:20:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:20:49,148 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:20:49,149 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:20:49,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:20:49 BoogieIcfgContainer [2019-10-13 21:20:49,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:20:49,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:20:49,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:20:49,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:20:49,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:20:47" (1/3) ... [2019-10-13 21:20:49,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2651b254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:20:49, skipping insertion in model container [2019-10-13 21:20:49,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:20:47" (2/3) ... [2019-10-13 21:20:49,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2651b254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:20:49, skipping insertion in model container [2019-10-13 21:20:49,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:20:49" (3/3) ... [2019-10-13 21:20:49,158 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2019-10-13 21:20:49,169 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:20:49,177 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:20:49,188 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:20:49,214 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:20:49,214 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:20:49,214 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:20:49,215 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:20:49,215 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:20:49,215 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:20:49,215 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:20:49,215 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:20:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-10-13 21:20:49,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 21:20:49,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:49,256 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 21:20:49,259 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:49,265 INFO L82 PathProgramCache]: Analyzing trace with hash -154299971, now seen corresponding path program 1 times [2019-10-13 21:20:49,275 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:49,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906232974] [2019-10-13 21:20:49,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:49,680 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 21:20:49,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906232974] [2019-10-13 21:20:49,682 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:49,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:20:49,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813800186] [2019-10-13 21:20:49,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:20:49,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:49,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:20:49,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:20:49,710 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-10-13 21:20:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:49,750 INFO L93 Difference]: Finished difference Result 262 states and 325 transitions. [2019-10-13 21:20:49,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:20:49,752 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-13 21:20:49,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:49,764 INFO L225 Difference]: With dead ends: 262 [2019-10-13 21:20:49,765 INFO L226 Difference]: Without dead ends: 133 [2019-10-13 21:20:49,769 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 21:20:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-13 21:20:49,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-10-13 21:20:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-13 21:20:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2019-10-13 21:20:49,822 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 51 [2019-10-13 21:20:49,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:49,822 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2019-10-13 21:20:49,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:20:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2019-10-13 21:20:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 21:20:49,827 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:49,827 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 21:20:49,827 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:49,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash 401693438, now seen corresponding path program 1 times [2019-10-13 21:20:49,828 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:49,828 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61227280] [2019-10-13 21:20:49,828 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,829 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:49,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:49,928 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 21:20:49,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61227280] [2019-10-13 21:20:49,928 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:49,929 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:20:49,929 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885005419] [2019-10-13 21:20:49,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:20:49,932 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:49,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:20:49,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:20:49,933 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2019-10-13 21:20:49,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:49,976 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2019-10-13 21:20:49,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:20:49,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-13 21:20:49,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:49,980 INFO L225 Difference]: With dead ends: 211 [2019-10-13 21:20:49,981 INFO L226 Difference]: Without dead ends: 124 [2019-10-13 21:20:49,984 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 21:20:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-13 21:20:50,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-13 21:20:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-13 21:20:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2019-10-13 21:20:50,014 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52 [2019-10-13 21:20:50,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:50,015 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2019-10-13 21:20:50,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:20:50,015 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2019-10-13 21:20:50,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 21:20:50,021 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:50,021 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 21:20:50,021 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:50,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:50,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1332267464, now seen corresponding path program 1 times [2019-10-13 21:20:50,022 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:50,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029011451] [2019-10-13 21:20:50,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:50,168 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 21:20:50,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029011451] [2019-10-13 21:20:50,169 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:50,169 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:20:50,170 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494381338] [2019-10-13 21:20:50,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:20:50,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:50,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:20:50,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:50,173 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 7 states. [2019-10-13 21:20:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:50,499 INFO L93 Difference]: Finished difference Result 220 states and 261 transitions. [2019-10-13 21:20:50,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:20:50,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 21:20:50,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:50,502 INFO L225 Difference]: With dead ends: 220 [2019-10-13 21:20:50,502 INFO L226 Difference]: Without dead ends: 124 [2019-10-13 21:20:50,506 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 21:20:50,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-13 21:20:50,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-13 21:20:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-13 21:20:50,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-10-13 21:20:50,526 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 56 [2019-10-13 21:20:50,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:50,529 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-10-13 21:20:50,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:20:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-10-13 21:20:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-13 21:20:50,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:50,540 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 21:20:50,541 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:50,541 INFO L82 PathProgramCache]: Analyzing trace with hash -877153324, now seen corresponding path program 1 times [2019-10-13 21:20:50,541 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:50,542 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447098621] [2019-10-13 21:20:50,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:50,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:50,711 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 21:20:50,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447098621] [2019-10-13 21:20:50,712 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:50,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:20:50,713 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507348715] [2019-10-13 21:20:50,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:20:50,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:50,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:20:50,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:20:50,714 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 5 states. [2019-10-13 21:20:51,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:51,142 INFO L93 Difference]: Finished difference Result 316 states and 383 transitions. [2019-10-13 21:20:51,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:20:51,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-13 21:20:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:51,150 INFO L225 Difference]: With dead ends: 316 [2019-10-13 21:20:51,150 INFO L226 Difference]: Without dead ends: 220 [2019-10-13 21:20:51,151 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 21:20:51,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-10-13 21:20:51,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 202. [2019-10-13 21:20:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-13 21:20:51,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 232 transitions. [2019-10-13 21:20:51,195 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 232 transitions. Word has length 69 [2019-10-13 21:20:51,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:51,202 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 232 transitions. [2019-10-13 21:20:51,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:20:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 232 transitions. [2019-10-13 21:20:51,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 21:20:51,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:51,204 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 21:20:51,204 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:51,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:51,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1061705923, now seen corresponding path program 1 times [2019-10-13 21:20:51,205 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:51,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299725574] [2019-10-13 21:20:51,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:51,346 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 21:20:51,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299725574] [2019-10-13 21:20:51,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:51,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:20:51,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327923918] [2019-10-13 21:20:51,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:20:51,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:51,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:20:51,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:20:51,350 INFO L87 Difference]: Start difference. First operand 202 states and 232 transitions. Second operand 6 states. [2019-10-13 21:20:51,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:51,552 INFO L93 Difference]: Finished difference Result 532 states and 632 transitions. [2019-10-13 21:20:51,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:51,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-10-13 21:20:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:51,562 INFO L225 Difference]: With dead ends: 532 [2019-10-13 21:20:51,562 INFO L226 Difference]: Without dead ends: 358 [2019-10-13 21:20:51,563 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 21:20:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-10-13 21:20:51,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 352. [2019-10-13 21:20:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2019-10-13 21:20:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 404 transitions. [2019-10-13 21:20:51,628 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 404 transitions. Word has length 83 [2019-10-13 21:20:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:51,629 INFO L462 AbstractCegarLoop]: Abstraction has 352 states and 404 transitions. [2019-10-13 21:20:51,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:20:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 404 transitions. [2019-10-13 21:20:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 21:20:51,631 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:51,633 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 21:20:51,633 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:51,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:51,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1506381919, now seen corresponding path program 1 times [2019-10-13 21:20:51,634 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:51,634 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998907398] [2019-10-13 21:20:51,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:51,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:51,753 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 21:20:51,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998907398] [2019-10-13 21:20:51,754 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:51,754 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:20:51,755 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690355952] [2019-10-13 21:20:51,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:20:51,755 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:51,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:20:51,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:20:51,756 INFO L87 Difference]: Start difference. First operand 352 states and 404 transitions. Second operand 7 states. [2019-10-13 21:20:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:52,425 INFO L93 Difference]: Finished difference Result 705 states and 832 transitions. [2019-10-13 21:20:52,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:20:52,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-10-13 21:20:52,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:52,430 INFO L225 Difference]: With dead ends: 705 [2019-10-13 21:20:52,430 INFO L226 Difference]: Without dead ends: 381 [2019-10-13 21:20:52,432 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:20:52,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-13 21:20:52,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 351. [2019-10-13 21:20:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-13 21:20:52,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2019-10-13 21:20:52,475 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 87 [2019-10-13 21:20:52,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:52,476 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2019-10-13 21:20:52,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:20:52,476 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2019-10-13 21:20:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 21:20:52,478 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:52,478 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, 1] [2019-10-13 21:20:52,478 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:52,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:52,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1049604760, now seen corresponding path program 1 times [2019-10-13 21:20:52,479 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:52,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630414503] [2019-10-13 21:20:52,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:52,576 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 21:20:52,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630414503] [2019-10-13 21:20:52,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:52,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:20:52,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496360093] [2019-10-13 21:20:52,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:20:52,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:52,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:20:52,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:20:52,578 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 6 states. [2019-10-13 21:20:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:52,617 INFO L93 Difference]: Finished difference Result 684 states and 794 transitions. [2019-10-13 21:20:52,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:20:52,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-10-13 21:20:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:52,620 INFO L225 Difference]: With dead ends: 684 [2019-10-13 21:20:52,620 INFO L226 Difference]: Without dead ends: 361 [2019-10-13 21:20:52,622 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 21:20:52,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-13 21:20:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-10-13 21:20:52,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-10-13 21:20:52,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 411 transitions. [2019-10-13 21:20:52,641 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 411 transitions. Word has length 88 [2019-10-13 21:20:52,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:52,642 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 411 transitions. [2019-10-13 21:20:52,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:20:52,642 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 411 transitions. [2019-10-13 21:20:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 21:20:52,644 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:52,644 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, 1] [2019-10-13 21:20:52,644 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:52,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:52,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1751204634, now seen corresponding path program 1 times [2019-10-13 21:20:52,645 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:52,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090509093] [2019-10-13 21:20:52,646 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,646 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:52,752 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 21:20:52,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090509093] [2019-10-13 21:20:52,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:52,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:20:52,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327289025] [2019-10-13 21:20:52,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:20:52,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:52,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:20:52,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:20:52,754 INFO L87 Difference]: Start difference. First operand 361 states and 411 transitions. Second operand 8 states. [2019-10-13 21:20:52,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:52,797 INFO L93 Difference]: Finished difference Result 708 states and 828 transitions. [2019-10-13 21:20:52,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:20:52,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-10-13 21:20:52,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:52,802 INFO L225 Difference]: With dead ends: 708 [2019-10-13 21:20:52,802 INFO L226 Difference]: Without dead ends: 375 [2019-10-13 21:20:52,804 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 21:20:52,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-13 21:20:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 369. [2019-10-13 21:20:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-10-13 21:20:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 419 transitions. [2019-10-13 21:20:52,827 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 419 transitions. Word has length 88 [2019-10-13 21:20:52,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:52,828 INFO L462 AbstractCegarLoop]: Abstraction has 369 states and 419 transitions. [2019-10-13 21:20:52,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:20:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 419 transitions. [2019-10-13 21:20:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 21:20:52,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:52,830 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, 1] [2019-10-13 21:20:52,831 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:52,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:52,831 INFO L82 PathProgramCache]: Analyzing trace with hash -818281765, now seen corresponding path program 1 times [2019-10-13 21:20:52,831 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:52,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000082022] [2019-10-13 21:20:52,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:52,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:52,913 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 21:20:52,914 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000082022] [2019-10-13 21:20:52,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:52,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:20:52,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886990178] [2019-10-13 21:20:52,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:20:52,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:52,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:20:52,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:20:52,917 INFO L87 Difference]: Start difference. First operand 369 states and 419 transitions. Second operand 4 states. [2019-10-13 21:20:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:53,151 INFO L93 Difference]: Finished difference Result 1106 states and 1326 transitions. [2019-10-13 21:20:53,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:20:53,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2019-10-13 21:20:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:53,157 INFO L225 Difference]: With dead ends: 1106 [2019-10-13 21:20:53,158 INFO L226 Difference]: Without dead ends: 765 [2019-10-13 21:20:53,159 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 21:20:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2019-10-13 21:20:53,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 493. [2019-10-13 21:20:53,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-10-13 21:20:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 556 transitions. [2019-10-13 21:20:53,202 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 556 transitions. Word has length 88 [2019-10-13 21:20:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:53,202 INFO L462 AbstractCegarLoop]: Abstraction has 493 states and 556 transitions. [2019-10-13 21:20:53,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:20:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 556 transitions. [2019-10-13 21:20:53,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 21:20:53,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:53,205 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, 1, 1, 1, 1, 1] [2019-10-13 21:20:53,205 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash -470187979, now seen corresponding path program 1 times [2019-10-13 21:20:53,206 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:53,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391396935] [2019-10-13 21:20:53,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:53,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:53,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:53,301 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 21:20:53,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391396935] [2019-10-13 21:20:53,302 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:53,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:20:53,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366164633] [2019-10-13 21:20:53,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:20:53,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:53,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:20:53,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:20:53,305 INFO L87 Difference]: Start difference. First operand 493 states and 556 transitions. Second operand 3 states. [2019-10-13 21:20:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:53,387 INFO L93 Difference]: Finished difference Result 764 states and 876 transitions. [2019-10-13 21:20:53,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:20:53,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2019-10-13 21:20:53,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:53,394 INFO L225 Difference]: With dead ends: 764 [2019-10-13 21:20:53,394 INFO L226 Difference]: Without dead ends: 761 [2019-10-13 21:20:53,397 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 21:20:53,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-10-13 21:20:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 634. [2019-10-13 21:20:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-10-13 21:20:53,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 725 transitions. [2019-10-13 21:20:53,440 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 725 transitions. Word has length 92 [2019-10-13 21:20:53,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:53,440 INFO L462 AbstractCegarLoop]: Abstraction has 634 states and 725 transitions. [2019-10-13 21:20:53,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:20:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 725 transitions. [2019-10-13 21:20:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 21:20:53,445 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:53,446 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 21:20:53,446 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:53,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:53,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1507801122, now seen corresponding path program 1 times [2019-10-13 21:20:53,447 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:53,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277675911] [2019-10-13 21:20:53,447 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:53,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:53,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 21:20:53,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277675911] [2019-10-13 21:20:53,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552544758] [2019-10-13 21:20:53,559 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 21:20:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:53,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:20:53,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:53,879 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 21:20:54,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:54,124 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-13 21:20:54,124 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638141896] [2019-10-13 21:20:54,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:20:54,125 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:54,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:20:54,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:20:54,126 INFO L87 Difference]: Start difference. First operand 634 states and 725 transitions. Second operand 3 states. [2019-10-13 21:20:54,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:54,197 INFO L93 Difference]: Finished difference Result 1060 states and 1221 transitions. [2019-10-13 21:20:54,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:20:54,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-10-13 21:20:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:54,201 INFO L225 Difference]: With dead ends: 1060 [2019-10-13 21:20:54,201 INFO L226 Difference]: Without dead ends: 574 [2019-10-13 21:20:54,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:20:54,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-10-13 21:20:54,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2019-10-13 21:20:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-13 21:20:54,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 646 transitions. [2019-10-13 21:20:54,247 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 646 transitions. Word has length 150 [2019-10-13 21:20:54,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:54,250 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 646 transitions. [2019-10-13 21:20:54,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:20:54,250 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 646 transitions. [2019-10-13 21:20:54,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 21:20:54,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:54,253 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:54,458 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:54,458 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:54,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:54,459 INFO L82 PathProgramCache]: Analyzing trace with hash 956550023, now seen corresponding path program 1 times [2019-10-13 21:20:54,459 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:54,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053044730] [2019-10-13 21:20:54,459 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:54,459 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:54,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:20:54,566 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053044730] [2019-10-13 21:20:54,566 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130280169] [2019-10-13 21:20:54,566 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 21:20:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:54,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:20:54,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:54,820 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:54,821 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:20:55,128 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:55,129 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2019-10-13 21:20:55,129 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618857138] [2019-10-13 21:20:55,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:20:55,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:55,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:20:55,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:20:55,131 INFO L87 Difference]: Start difference. First operand 574 states and 646 transitions. Second operand 5 states. [2019-10-13 21:20:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:55,750 INFO L93 Difference]: Finished difference Result 1453 states and 1778 transitions. [2019-10-13 21:20:55,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:20:55,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2019-10-13 21:20:55,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:55,756 INFO L225 Difference]: With dead ends: 1453 [2019-10-13 21:20:55,757 INFO L226 Difference]: Without dead ends: 1027 [2019-10-13 21:20:55,758 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:20:55,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2019-10-13 21:20:55,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 940. [2019-10-13 21:20:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2019-10-13 21:20:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1088 transitions. [2019-10-13 21:20:55,825 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1088 transitions. Word has length 152 [2019-10-13 21:20:55,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:55,825 INFO L462 AbstractCegarLoop]: Abstraction has 940 states and 1088 transitions. [2019-10-13 21:20:55,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:20:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1088 transitions. [2019-10-13 21:20:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 21:20:55,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:55,830 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:56,034 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:56,035 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:56,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:56,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1309638405, now seen corresponding path program 1 times [2019-10-13 21:20:56,035 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:56,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944080734] [2019-10-13 21:20:56,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:56,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:56,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:20:56,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944080734] [2019-10-13 21:20:56,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418260566] [2019-10-13 21:20:56,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:56,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 21:20:56,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:20:56,769 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:20:56,769 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:20:56,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:20:56,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:20:56,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:20:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:20:57,165 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:20:57,165 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 10] total 17 [2019-10-13 21:20:57,165 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598657821] [2019-10-13 21:20:57,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:20:57,166 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:57,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:20:57,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:20:57,167 INFO L87 Difference]: Start difference. First operand 940 states and 1088 transitions. Second operand 9 states. [2019-10-13 21:20:58,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:58,572 INFO L93 Difference]: Finished difference Result 2397 states and 3110 transitions. [2019-10-13 21:20:58,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:20:58,573 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2019-10-13 21:20:58,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:58,583 INFO L225 Difference]: With dead ends: 2397 [2019-10-13 21:20:58,584 INFO L226 Difference]: Without dead ends: 1609 [2019-10-13 21:20:58,587 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 300 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:20:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2019-10-13 21:20:58,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1290. [2019-10-13 21:20:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1290 states. [2019-10-13 21:20:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1510 transitions. [2019-10-13 21:20:58,672 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1510 transitions. Word has length 152 [2019-10-13 21:20:58,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:58,673 INFO L462 AbstractCegarLoop]: Abstraction has 1290 states and 1510 transitions. [2019-10-13 21:20:58,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:20:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1510 transitions. [2019-10-13 21:20:58,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 21:20:58,676 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:58,676 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:58,891 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:58,892 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:58,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1237251847, now seen corresponding path program 1 times [2019-10-13 21:20:58,893 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:58,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662691400] [2019-10-13 21:20:58,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:58,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:58,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:20:58,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662691400] [2019-10-13 21:20:58,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:20:58,988 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:20:58,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807565021] [2019-10-13 21:20:58,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:20:58,989 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:20:58,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:20:58,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:20:58,989 INFO L87 Difference]: Start difference. First operand 1290 states and 1510 transitions. Second operand 9 states. [2019-10-13 21:20:59,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:59,058 INFO L93 Difference]: Finished difference Result 1745 states and 2047 transitions. [2019-10-13 21:20:59,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:20:59,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2019-10-13 21:20:59,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:59,059 INFO L225 Difference]: With dead ends: 1745 [2019-10-13 21:20:59,059 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:20:59,063 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:20:59,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:20:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:20:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:20:59,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:20:59,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2019-10-13 21:20:59,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:59,065 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:20:59,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:20:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:20:59,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:20:59,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:21:00,195 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 28 [2019-10-13 21:21:00,408 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2019-10-13 21:21:00,761 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 27 [2019-10-13 21:21:00,930 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 27 [2019-10-13 21:21:01,130 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2019-10-13 21:21:01,444 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2019-10-13 21:21:01,650 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 29 [2019-10-13 21:21:01,804 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 27 [2019-10-13 21:21:02,021 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 29 [2019-10-13 21:21:02,178 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 30 [2019-10-13 21:21:02,625 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-10-13 21:21:02,901 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 33 [2019-10-13 21:21:03,231 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 33 [2019-10-13 21:21:03,414 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 24 [2019-10-13 21:21:03,697 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2019-10-13 21:21:03,946 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 32 [2019-10-13 21:21:04,186 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-10-13 21:21:04,486 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 27 [2019-10-13 21:21:04,622 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 24 [2019-10-13 21:21:04,824 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 40 [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point L638(line 638) no Hoare annotation was computed. [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point L637-2(lines 637 658) no Hoare annotation was computed. [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point L659(lines 636 660) no Hoare annotation was computed. [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 612 667) no Hoare annotation was computed. [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 612 667) no Hoare annotation was computed. [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point L643(lines 643 647) no Hoare annotation was computed. [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 612 667) no Hoare annotation was computed. [2019-10-13 21:21:04,828 INFO L443 ceAbstractionStarter]: For program point L643-1(lines 643 647) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point L700(lines 700 704) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point L700-1(lines 700 704) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point L695(line 695) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 668 727) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point L694-2(lines 694 719) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point L720(lines 693 721) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 668 727) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 668 727) no Hoare annotation was computed. [2019-10-13 21:21:04,829 INFO L443 ceAbstractionStarter]: For program point L713(line 713) no Hoare annotation was computed. [2019-10-13 21:21:04,830 INFO L443 ceAbstractionStarter]: For program point L713-1(line 713) no Hoare annotation was computed. [2019-10-13 21:21:04,830 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 953 959) the Hoare annotation is: true [2019-10-13 21:21:04,830 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 953 959) no Hoare annotation was computed. [2019-10-13 21:21:04,830 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 960 968) no Hoare annotation was computed. [2019-10-13 21:21:04,830 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 960 968) the Hoare annotation is: true [2019-10-13 21:21:04,830 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 960 968) no Hoare annotation was computed. [2019-10-13 21:21:04,830 INFO L439 ceAbstractionStarter]: At program point L129(line 129) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,831 INFO L439 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,831 INFO L439 ceAbstractionStarter]: At program point L128-1(line 128) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,831 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 122 144) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,831 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 122 144) no Hoare annotation was computed. [2019-10-13 21:21:04,831 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 122 144) no Hoare annotation was computed. [2019-10-13 21:21:04,831 INFO L439 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,831 INFO L439 ceAbstractionStarter]: At program point L134-1(line 134) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 139) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point L132-1(lines 132 139) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 75 98) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 75 98) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point L92(line 92) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 75 98) no Hoare annotation was computed. [2019-10-13 21:21:04,832 INFO L443 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L89(line 89) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L83(line 83) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 476 484) no Hoare annotation was computed. [2019-10-13 21:21:04,833 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 476 484) the Hoare annotation is: true [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 476 484) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 540 558) the Hoare annotation is: true [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 540 558) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point L549(lines 549 553) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L446 ceAbstractionStarter]: At program point L547(line 547) the Hoare annotation is: true [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point L549-2(lines 549 553) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point L547-1(line 547) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 540 558) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point L504(lines 504 512) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point L504-2(lines 504 512) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 485 520) no Hoare annotation was computed. [2019-10-13 21:21:04,834 INFO L443 ceAbstractionStarter]: For program point L492(lines 492 500) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point L492-2(lines 492 500) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 485 520) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 485 520) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point L515-1(line 515) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 946 952) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 946 952) the Hoare annotation is: true [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 566 611) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 566 611) no Hoare annotation was computed. [2019-10-13 21:21:04,835 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 566 611) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point L893(lines 893 913) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point L893-1(lines 893 913) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 879 924) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 879 924) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 879 924) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point L899(lines 899 906) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L439 ceAbstractionStarter]: At program point L113(line 113) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,836 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 108 118) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 108 118) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 108 118) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmENTRY(lines 465 475) no Hoare annotation was computed. [2019-10-13 21:21:04,836 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 465 475) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 465 475) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point L470-1(line 470) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 457 464) the Hoare annotation is: (or (not (<= 1 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (not (= ~systemActive~0 1))) [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 457 464) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 457 464) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point L235(lines 235 241) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 231 244) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 231 244) the Hoare annotation is: true [2019-10-13 21:21:04,837 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 231 244) no Hoare annotation was computed. [2019-10-13 21:21:04,837 INFO L439 ceAbstractionStarter]: At program point L443(line 443) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 (or .cse0 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 .cse1))) [2019-10-13 21:21:04,838 INFO L443 ceAbstractionStarter]: For program point L443-1(lines 424 448) no Hoare annotation was computed. [2019-10-13 21:21:04,838 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 424 448) no Hoare annotation was computed. [2019-10-13 21:21:04,838 INFO L439 ceAbstractionStarter]: At program point L438(line 438) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse0 .cse2))) [2019-10-13 21:21:04,838 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 424 448) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (= ~pumpRunning~0 0))) (and (or (not (<= 1 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or (or .cse2 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse0 .cse3) (or .cse0 (or .cse2 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-13 21:21:04,838 INFO L439 ceAbstractionStarter]: At program point L434(line 434) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse0 (and (= 1 processEnvironment_~tmp~4) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse2) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0))) [2019-10-13 21:21:04,838 INFO L443 ceAbstractionStarter]: For program point L432(lines 432 440) no Hoare annotation was computed. [2019-10-13 21:21:04,838 INFO L439 ceAbstractionStarter]: At program point L430(line 430) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (not (<= 1 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse2) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0))) [2019-10-13 21:21:04,838 INFO L443 ceAbstractionStarter]: For program point L430-1(line 430) no Hoare annotation was computed. [2019-10-13 21:21:04,839 INFO L443 ceAbstractionStarter]: For program point L428(lines 428 445) no Hoare annotation was computed. [2019-10-13 21:21:04,839 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 390 396) no Hoare annotation was computed. [2019-10-13 21:21:04,839 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 390 396) the Hoare annotation is: true [2019-10-13 21:21:04,839 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 296 359) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,839 INFO L439 ceAbstractionStarter]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse0))) [2019-10-13 21:21:04,839 INFO L439 ceAbstractionStarter]: At program point L349(lines 306 351) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse0))) [2019-10-13 21:21:04,839 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 322) no Hoare annotation was computed. [2019-10-13 21:21:04,839 INFO L443 ceAbstractionStarter]: For program point L316-1(lines 316 322) no Hoare annotation was computed. [2019-10-13 21:21:04,839 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 296 359) no Hoare annotation was computed. [2019-10-13 21:21:04,839 INFO L443 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2019-10-13 21:21:04,839 INFO L439 ceAbstractionStarter]: At program point L352(lines 305 353) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point L342(lines 342 346) no Hoare annotation was computed. [2019-10-13 21:21:04,840 INFO L439 ceAbstractionStarter]: At program point L342-2(lines 336 347) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse0))) [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point L307(lines 306 351) no Hoare annotation was computed. [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point L336(lines 336 347) no Hoare annotation was computed. [2019-10-13 21:21:04,840 INFO L439 ceAbstractionStarter]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse0) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (and (and .cse0 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0)) (<= 1 ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point L326(lines 326 332) no Hoare annotation was computed. [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 296 359) no Hoare annotation was computed. [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 833 878) no Hoare annotation was computed. [2019-10-13 21:21:04,840 INFO L443 ceAbstractionStarter]: For program point L853(lines 853 860) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 833 878) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 833 878) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point L847(lines 847 867) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point L847-1(lines 847 867) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 245 253) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 245 253) the Hoare annotation is: true [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 245 253) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L439 ceAbstractionStarter]: At program point L281(line 281) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~pumpRunning~0))) (.cse1 (not (<= 2 ~waterLevel~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (or (or (not (= 0 ~pumpRunning~0)) .cse2) (not (<= 1 ~waterLevel~0))) (or .cse0 .cse1 (or .cse2 (not (= ~methaneLevelCritical~0 0)))))) [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point L279(lines 279 285) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 288) no Hoare annotation was computed. [2019-10-13 21:21:04,841 INFO L439 ceAbstractionStarter]: At program point L276(line 276) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 1 ~pumpRunning~0))) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse6 (not (<= 2 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1)) .cse3) (or (or .cse0 .cse1 .cse4) (not (<= 1 ~waterLevel~0))) (or .cse5 .cse6 (or .cse1 .cse4)) (or .cse5 .cse2 .cse6 .cse1 .cse3))) [2019-10-13 21:21:04,841 INFO L443 ceAbstractionStarter]: For program point L276-1(line 276) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point L274(lines 274 291) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point L274-1(lines 266 294) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L439 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 266 294) the Hoare annotation is: (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2) (or (not (<= 1 ~pumpRunning~0)) .cse1 (not (<= 2 ~waterLevel~0)) .cse0 .cse2))) [2019-10-13 21:21:04,842 INFO L439 ceAbstractionStarter]: At program point L272(line 272) the Hoare annotation is: (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2) (or (not (<= 1 ~pumpRunning~0)) .cse1 (not (<= 2 ~waterLevel~0)) .cse0 .cse2))) [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point L272-1(line 272) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 266 294) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L439 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 258 265) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (= 0 ~methAndRunningLastTime~0) (not (= ~systemActive~0 1)) (not (= ~waterLevel~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~methaneLevelCritical~0 0))) [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 258 265) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 258 265) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point L207(lines 207 215) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point L207-2(lines 207 215) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 199 221) no Hoare annotation was computed. [2019-10-13 21:21:04,842 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 199 221) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 199 221) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 730 832) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L795(line 795) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L795-1(line 795) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L754(lines 754 758) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L818(lines 818 829) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L781(lines 781 785) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L779-2(lines 779 799) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 730 832) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L800(lines 778 801) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L759(lines 759 775) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L819(lines 819 826) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 730 832) no Hoare annotation was computed. [2019-10-13 21:21:04,843 INFO L443 ceAbstractionStarter]: For program point L780(lines 779 799) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L443 ceAbstractionStarter]: For program point L811(line 811) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L443 ceAbstractionStarter]: For program point L811-1(line 811) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L443 ceAbstractionStarter]: For program point L776(lines 776 817) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 936 945) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 936 945) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 936 945) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:04,844 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-13 21:21:04,845 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:04,845 INFO L443 ceAbstractionStarter]: For program point activatePumpFINAL(lines 449 456) no Hoare annotation was computed. [2019-10-13 21:21:04,845 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 449 456) no Hoare annotation was computed. [2019-10-13 21:21:04,845 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 449 456) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (not (<= 2 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse1 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-13 21:21:04,845 INFO L443 ceAbstractionStarter]: For program point getWaterLevelENTRY(lines 222 230) no Hoare annotation was computed. [2019-10-13 21:21:04,845 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 222 230) no Hoare annotation was computed. [2019-10-13 21:21:04,845 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 222 230) no Hoare annotation was computed. [2019-10-13 21:21:04,845 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 521 539) no Hoare annotation was computed. [2019-10-13 21:21:04,846 INFO L446 ceAbstractionStarter]: At program point L528(line 528) the Hoare annotation is: true [2019-10-13 21:21:04,846 INFO L443 ceAbstractionStarter]: For program point L530-2(lines 530 534) no Hoare annotation was computed. [2019-10-13 21:21:04,846 INFO L443 ceAbstractionStarter]: For program point L528-1(line 528) no Hoare annotation was computed. [2019-10-13 21:21:04,846 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 521 539) the Hoare annotation is: true [2019-10-13 21:21:04,846 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 521 539) no Hoare annotation was computed. [2019-10-13 21:21:04,846 INFO L443 ceAbstractionStarter]: For program point L530(lines 530 534) no Hoare annotation was computed. [2019-10-13 21:21:04,846 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 178 189) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (<= 1 ~pumpRunning~0)) (not (<= 2 ~waterLevel~0)) (or .cse0 .cse1) .cse2 .cse3) (or (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1) (not (<= 1 ~waterLevel~0)) .cse3 .cse2))) [2019-10-13 21:21:04,846 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 178 189) no Hoare annotation was computed. [2019-10-13 21:21:04,847 INFO L443 ceAbstractionStarter]: For program point L182-1(lines 178 189) no Hoare annotation was computed. [2019-10-13 21:21:04,847 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:04,847 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:21:04,847 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:04,847 INFO L439 ceAbstractionStarter]: At program point L379(line 379) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (let ((.cse3 (or .cse0 .cse1)) (.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= 0 ~methAndRunningLastTime~0))) (and (or .cse0 .cse1 (= 1 ~waterLevel~0) (not (= |old(~waterLevel~0)| 1)) .cse2) (or (not (<= 1 |old(~waterLevel~0)|)) .cse3 (and (= ~pumpRunning~0 0) .cse4) .cse2) (or (<= |old(~waterLevel~0)| ~waterLevel~0) .cse3 .cse5 .cse2) (or .cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1 .cse5) (or .cse6 .cse1 .cse5 .cse2 .cse4)))) [2019-10-13 21:21:04,847 INFO L439 ceAbstractionStarter]: At program point L377(lines 377 383) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (= 0 ~methAndRunningLastTime~0)) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (not (= ~systemActive~0 1)))) (and (let ((.cse1 (<= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (or .cse2 .cse3) .cse4 (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse5 .cse1))) (or .cse2 .cse3 (and (= 1 ~waterLevel~0) .cse5) (not (= |old(~waterLevel~0)| 1)) .cse4) (or (not (<= 1 |old(~pumpRunning~0)|)) (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0) .cse3 (not (<= 2 |old(~waterLevel~0)|))))) [2019-10-13 21:21:04,848 INFO L439 ceAbstractionStarter]: At program point L372(line 372) the Hoare annotation is: (let ((.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (not (<= 1 |old(~waterLevel~0)|)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0) .cse1) (or .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse3) (or .cse2 (= 0 ~methAndRunningLastTime~0) .cse0 .cse3 .cse1))) [2019-10-13 21:21:04,848 INFO L443 ceAbstractionStarter]: For program point L370(lines 369 388) no Hoare annotation was computed. [2019-10-13 21:21:04,848 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 366 389) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (let ((.cse3 (or .cse0 .cse1)) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (= 0 ~methAndRunningLastTime~0)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= 1 ~waterLevel~0) (not (= |old(~waterLevel~0)| 1)) .cse2) (or (not (<= 1 |old(~waterLevel~0)|)) .cse3 (and (= ~pumpRunning~0 0) .cse4) .cse2) (or .cse5 .cse3 .cse6 .cse2) (or .cse7 .cse1 .cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5)) (or .cse7 .cse4 .cse1 .cse6 .cse2)))) [2019-10-13 21:21:04,848 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 366 389) no Hoare annotation was computed. [2019-10-13 21:21:04,848 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 366 389) no Hoare annotation was computed. [2019-10-13 21:21:04,848 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2019-10-13 21:21:04,848 INFO L443 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2019-10-13 21:21:04,849 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2019-10-13 21:21:04,849 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2019-10-13 21:21:04,849 INFO L446 ceAbstractionStarter]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2019-10-13 21:21:04,849 INFO L443 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2019-10-13 21:21:04,849 INFO L446 ceAbstractionStarter]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2019-10-13 21:21:04,849 INFO L446 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: true [2019-10-13 21:21:04,849 INFO L443 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2019-10-13 21:21:04,849 INFO L446 ceAbstractionStarter]: At program point L67(lines 42 71) the Hoare annotation is: true [2019-10-13 21:21:04,850 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 190 198) the Hoare annotation is: true [2019-10-13 21:21:04,850 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 190 198) no Hoare annotation was computed. [2019-10-13 21:21:04,850 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 190 198) no Hoare annotation was computed. [2019-10-13 21:21:04,850 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 154 165) the Hoare annotation is: (or (not (<= 1 ~pumpRunning~0)) (<= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|)) (not (= ~systemActive~0 1))) [2019-10-13 21:21:04,850 INFO L443 ceAbstractionStarter]: For program point L158-1(lines 154 165) no Hoare annotation was computed. [2019-10-13 21:21:04,850 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 154 165) no Hoare annotation was computed. [2019-10-13 21:21:04,850 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2019-10-13 21:21:04,850 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2019-10-13 21:21:04,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:04,851 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) (= 0 ~methAndRunningLastTime~0)) [2019-10-13 21:21:04,851 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:21:04,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:04,851 INFO L439 ceAbstractionStarter]: At program point L417(line 417) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0))) [2019-10-13 21:21:04,851 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 398 422) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (= ~pumpRunning~0 0))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 (or .cse0 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-13 21:21:04,851 INFO L443 ceAbstractionStarter]: For program point L417-1(lines 398 422) no Hoare annotation was computed. [2019-10-13 21:21:04,852 INFO L439 ceAbstractionStarter]: At program point L412(line 412) the Hoare annotation is: (let ((.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~3) (= ~pumpRunning~0 0))) (.cse3 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 .cse3 (or .cse0 .cse1) (not (= ~methAndRunningLastTime~0 0))))) [2019-10-13 21:21:04,852 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 398 422) no Hoare annotation was computed. [2019-10-13 21:21:04,852 INFO L439 ceAbstractionStarter]: At program point L408(line 408) the Hoare annotation is: (let ((.cse2 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0))) (.cse3 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 .cse3 (or .cse0 .cse1) (not (= ~methAndRunningLastTime~0 0))))) [2019-10-13 21:21:04,852 INFO L443 ceAbstractionStarter]: For program point L406(lines 406 414) no Hoare annotation was computed. [2019-10-13 21:21:04,852 INFO L439 ceAbstractionStarter]: At program point L404(line 404) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (= ~pumpRunning~0 0))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 (or .cse0 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-13 21:21:04,852 INFO L443 ceAbstractionStarter]: For program point L404-1(line 404) no Hoare annotation was computed. [2019-10-13 21:21:04,852 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 419) no Hoare annotation was computed. [2019-10-13 21:21:04,852 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 166 177) no Hoare annotation was computed. [2019-10-13 21:21:04,852 INFO L443 ceAbstractionStarter]: For program point L170-1(lines 166 177) no Hoare annotation was computed. [2019-10-13 21:21:04,853 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 166 177) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (= 1 ~waterLevel~0) (not (= |old(~waterLevel~0)| 1)) .cse2) (or (not (<= 1 |old(~waterLevel~0)|)) (or .cse0 .cse1) .cse3 .cse2) (or (not (<= 1 ~pumpRunning~0)) .cse1 (not (<= 2 |old(~waterLevel~0)|)) .cse3))) [2019-10-13 21:21:04,853 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 926 933) no Hoare annotation was computed. [2019-10-13 21:21:04,853 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 926 933) the Hoare annotation is: true [2019-10-13 21:21:04,853 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 930) no Hoare annotation was computed. [2019-10-13 21:21:04,853 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 926 933) no Hoare annotation was computed. [2019-10-13 21:21:04,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:21:04 BoogieIcfgContainer [2019-10-13 21:21:04,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:21:04,869 INFO L168 Benchmark]: Toolchain (without parser) took 17545.55 ms. Allocated memory was 144.2 MB in the beginning and 515.9 MB in the end (delta: 371.7 MB). Free memory was 101.1 MB in the beginning and 138.9 MB in the end (delta: -37.8 MB). Peak memory consumption was 333.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:04,870 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 21:21:04,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.94 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 169.1 MB in the end (delta: -68.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:04,871 INFO L168 Benchmark]: Boogie Preprocessor took 93.83 ms. Allocated memory is still 201.3 MB. Free memory was 169.1 MB in the beginning and 164.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:04,872 INFO L168 Benchmark]: RCFGBuilder took 1090.41 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 164.9 MB in the beginning and 195.1 MB in the end (delta: -30.2 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:04,873 INFO L168 Benchmark]: TraceAbstraction took 15715.99 ms. Allocated memory was 232.8 MB in the beginning and 515.9 MB in the end (delta: 283.1 MB). Free memory was 195.1 MB in the beginning and 138.9 MB in the end (delta: 56.2 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:04,876 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.94 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 169.1 MB in the end (delta: -68.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.83 ms. Allocated memory is still 201.3 MB. Free memory was 169.1 MB in the beginning and 164.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1090.41 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 164.9 MB in the beginning and 195.1 MB in the end (delta: -30.2 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15715.99 ms. Allocated memory was 232.8 MB in the beginning and 515.9 MB in the end (delta: 283.1 MB). Free memory was 195.1 MB in the beginning and 138.9 MB in the end (delta: 56.2 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: 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: 305]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: (((((!(systemActive == 1) || !(\old(methAndRunningLastTime) == 0)) || !(0 == \old(pumpRunning))) || (((0 == splverifierCounter && pumpRunning == 0) && 0 == methAndRunningLastTime) && \old(waterLevel) <= waterLevel)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((1 <= pumpRunning && 2 <= waterLevel) && 0 == splverifierCounter) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 240 locations, 1 error locations. Result: SAFE, OverallTime: 15.6s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.7s, HoareTripleCheckerStatistics: 2267 SDtfs, 1437 SDslu, 4348 SDs, 0 SdLazy, 2457 SolverSat, 514 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1051 GetRequests, 954 SyntacticMatches, 5 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1290occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 865 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 2076 PreInvPairs, 2152 NumberOfFragments, 1833 HoareAnnotationTreeSize, 2076 FomulaSimplifications, 14577 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 60 FomulaSimplificationsInter, 17780 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1814 NumberOfCodeBlocks, 1814 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2248 ConstructedInterpolants, 0 QuantifiedInterpolants, 446088 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2712 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 379/407 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...