/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:32:14,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:32:14,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:32:14,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:32:14,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:32:14,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:32:14,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:32:14,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:32:14,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:32:14,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:32:14,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:32:14,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:32:14,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:32:14,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:32:14,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:32:14,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:32:14,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:32:14,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:32:14,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:32:14,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:32:14,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:32:14,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:32:14,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:32:14,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:32:14,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:32:14,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:32:14,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:32:14,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:32:14,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:32:14,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:32:14,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:32:14,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:32:14,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:32:14,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:32:14,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:32:14,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:32:14,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:32:14,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:32:14,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:32:14,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:32:14,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:32:14,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:32:14,436 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:32:14,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:32:14,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:32:14,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:32:14,439 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:32:14,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:32:14,439 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:32:14,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:32:14,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:32:14,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:32:14,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:32:14,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:32:14,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:32:14,442 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:32:14,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:32:14,442 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:32:14,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:32:14,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:32:14,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:32:14,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:32:14,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:32:14,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:32:14,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:32:14,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:32:14,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:32:14,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:32:14,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:32:14,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:32:14,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:32:14,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:32:14,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:32:14,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:32:14,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:32:14,776 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:32:14,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-11-07 04:32:14,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03ac0afc/077098201f0940e6a36d72b8283c36a5/FLAG940363a0f [2019-11-07 04:32:15,315 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:32:15,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-11-07 04:32:15,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03ac0afc/077098201f0940e6a36d72b8283c36a5/FLAG940363a0f [2019-11-07 04:32:15,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03ac0afc/077098201f0940e6a36d72b8283c36a5 [2019-11-07 04:32:15,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:32:15,682 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:32:15,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:32:15,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:32:15,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:32:15,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:32:15" (1/1) ... [2019-11-07 04:32:15,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26356282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:15, skipping insertion in model container [2019-11-07 04:32:15,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:32:15" (1/1) ... [2019-11-07 04:32:15,719 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:32:15,844 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:32:16,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:32:16,349 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:32:16,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:32:16,491 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:32:16,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16 WrapperNode [2019-11-07 04:32:16,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:32:16,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:32:16,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:32:16,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:32:16,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... [2019-11-07 04:32:16,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... [2019-11-07 04:32:16,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... [2019-11-07 04:32:16,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... [2019-11-07 04:32:16,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... [2019-11-07 04:32:16,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... [2019-11-07 04:32:16,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... [2019-11-07 04:32:16,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:32:16,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:32:16,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:32:16,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:32:16,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:32:16,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:32:16,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:32:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:32:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:32:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-11-07 04:32:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:32:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:32:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:32:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:32:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:32:16,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:32:16,659 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:32:16,659 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:32:16,659 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:32:16,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:32:16,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:32:16,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:32:16,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:32:16,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:32:16,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:32:16,661 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:32:16,661 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:32:16,661 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:32:16,661 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:32:16,661 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:32:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:32:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:32:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:32:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:32:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:32:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:32:16,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:32:16,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:32:16,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:32:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:32:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:32:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-07 04:32:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:32:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:32:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:32:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:32:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:32:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:32:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:32:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:32:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:32:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:32:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:32:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:32:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:32:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-11-07 04:32:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:32:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:32:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:32:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:32:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:32:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:32:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:32:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:32:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:32:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:32:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:32:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:32:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:32:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:32:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:32:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:32:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:32:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:32:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:32:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:32:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:32:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:32:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:32:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:32:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:32:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:32:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:32:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:32:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:32:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:32:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:32:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-07 04:32:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:32:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:32:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:32:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:32:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:32:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:32:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:32:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:32:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:32:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:32:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:32:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:32:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:32:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:32:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:32:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:32:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:32:18,440 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:32:18,441 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:32:18,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:32:18 BoogieIcfgContainer [2019-11-07 04:32:18,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:32:18,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:32:18,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:32:18,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:32:18,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:32:15" (1/3) ... [2019-11-07 04:32:18,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27856f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:32:18, skipping insertion in model container [2019-11-07 04:32:18,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:16" (2/3) ... [2019-11-07 04:32:18,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27856f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:32:18, skipping insertion in model container [2019-11-07 04:32:18,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:32:18" (3/3) ... [2019-11-07 04:32:18,450 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2019-11-07 04:32:18,460 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:32:18,469 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:32:18,480 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:32:18,507 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:32:18,507 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:32:18,507 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:32:18,507 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:32:18,508 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:32:18,508 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:32:18,508 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:32:18,508 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:32:18,530 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2019-11-07 04:32:18,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-07 04:32:18,539 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:18,540 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:32:18,542 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:18,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:18,548 INFO L82 PathProgramCache]: Analyzing trace with hash -855549024, now seen corresponding path program 1 times [2019-11-07 04:32:18,558 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:18,558 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362652395] [2019-11-07 04:32:18,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:32:18,892 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362652395] [2019-11-07 04:32:18,893 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:18,893 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:32:18,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633494246] [2019-11-07 04:32:18,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:32:18,901 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:18,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:32:18,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:32:18,919 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2019-11-07 04:32:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:18,966 INFO L93 Difference]: Finished difference Result 271 states and 330 transitions. [2019-11-07 04:32:18,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:32:18,967 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2019-11-07 04:32:18,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:18,981 INFO L225 Difference]: With dead ends: 271 [2019-11-07 04:32:18,981 INFO L226 Difference]: Without dead ends: 136 [2019-11-07 04:32:18,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:32:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-11-07 04:32:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-11-07 04:32:19,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-07 04:32:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2019-11-07 04:32:19,050 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 47 [2019-11-07 04:32:19,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:19,051 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2019-11-07 04:32:19,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:32:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2019-11-07 04:32:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-07 04:32:19,055 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:19,056 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:32:19,056 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:19,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:19,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1912018837, now seen corresponding path program 1 times [2019-11-07 04:32:19,057 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:19,057 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032682369] [2019-11-07 04:32:19,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:32:19,241 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032682369] [2019-11-07 04:32:19,242 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:19,242 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:32:19,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906452974] [2019-11-07 04:32:19,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:32:19,246 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:19,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:32:19,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:32:19,247 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 3 states. [2019-11-07 04:32:19,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:19,297 INFO L93 Difference]: Finished difference Result 225 states and 264 transitions. [2019-11-07 04:32:19,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:32:19,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-11-07 04:32:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:19,301 INFO L225 Difference]: With dead ends: 225 [2019-11-07 04:32:19,301 INFO L226 Difference]: Without dead ends: 128 [2019-11-07 04:32:19,303 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:32:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-11-07 04:32:19,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-11-07 04:32:19,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-07 04:32:19,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2019-11-07 04:32:19,321 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 48 [2019-11-07 04:32:19,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:19,322 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2019-11-07 04:32:19,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:32:19,322 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2019-11-07 04:32:19,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-07 04:32:19,325 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:19,325 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:32:19,325 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:19,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:19,326 INFO L82 PathProgramCache]: Analyzing trace with hash 385099890, now seen corresponding path program 1 times [2019-11-07 04:32:19,326 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:19,326 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029861042] [2019-11-07 04:32:19,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:32:19,530 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029861042] [2019-11-07 04:32:19,530 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:19,530 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:32:19,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66145792] [2019-11-07 04:32:19,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:32:19,531 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:19,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:32:19,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:32:19,533 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2019-11-07 04:32:19,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:19,941 INFO L93 Difference]: Finished difference Result 234 states and 275 transitions. [2019-11-07 04:32:19,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:32:19,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-11-07 04:32:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:19,949 INFO L225 Difference]: With dead ends: 234 [2019-11-07 04:32:19,950 INFO L226 Difference]: Without dead ends: 128 [2019-11-07 04:32:19,951 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:32:19,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-11-07 04:32:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-11-07 04:32:19,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-07 04:32:19,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2019-11-07 04:32:19,986 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 51 [2019-11-07 04:32:19,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:19,987 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2019-11-07 04:32:19,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:32:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2019-11-07 04:32:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-07 04:32:19,991 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:19,991 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:32:19,991 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:19,992 INFO L82 PathProgramCache]: Analyzing trace with hash 882274702, now seen corresponding path program 1 times [2019-11-07 04:32:19,992 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:19,992 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198074931] [2019-11-07 04:32:19,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:32:20,166 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198074931] [2019-11-07 04:32:20,166 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:20,166 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:32:20,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560861551] [2019-11-07 04:32:20,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:32:20,168 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:20,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:32:20,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:32:20,168 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2019-11-07 04:32:20,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:20,763 INFO L93 Difference]: Finished difference Result 346 states and 412 transitions. [2019-11-07 04:32:20,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:32:20,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-11-07 04:32:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:20,767 INFO L225 Difference]: With dead ends: 346 [2019-11-07 04:32:20,767 INFO L226 Difference]: Without dead ends: 240 [2019-11-07 04:32:20,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:32:20,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-11-07 04:32:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 223. [2019-11-07 04:32:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-11-07 04:32:20,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 248 transitions. [2019-11-07 04:32:20,800 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 248 transitions. Word has length 68 [2019-11-07 04:32:20,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:20,800 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 248 transitions. [2019-11-07 04:32:20,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:32:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 248 transitions. [2019-11-07 04:32:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-11-07 04:32:20,804 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:20,804 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:32:20,804 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:20,805 INFO L82 PathProgramCache]: Analyzing trace with hash 218550541, now seen corresponding path program 1 times [2019-11-07 04:32:20,805 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:20,805 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055289604] [2019-11-07 04:32:20,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:32:20,924 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055289604] [2019-11-07 04:32:20,925 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:20,925 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:32:20,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955304656] [2019-11-07 04:32:20,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:32:20,926 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:20,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:32:20,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:32:20,928 INFO L87 Difference]: Start difference. First operand 223 states and 248 transitions. Second operand 6 states. [2019-11-07 04:32:21,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:21,127 INFO L93 Difference]: Finished difference Result 546 states and 623 transitions. [2019-11-07 04:32:21,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:32:21,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-11-07 04:32:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:21,132 INFO L225 Difference]: With dead ends: 546 [2019-11-07 04:32:21,132 INFO L226 Difference]: Without dead ends: 345 [2019-11-07 04:32:21,134 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:32:21,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-11-07 04:32:21,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 335. [2019-11-07 04:32:21,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-11-07 04:32:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 376 transitions. [2019-11-07 04:32:21,191 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 376 transitions. Word has length 78 [2019-11-07 04:32:21,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:21,191 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 376 transitions. [2019-11-07 04:32:21,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:32:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 376 transitions. [2019-11-07 04:32:21,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-07 04:32:21,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:21,201 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:32:21,201 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:21,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:21,202 INFO L82 PathProgramCache]: Analyzing trace with hash 313023912, now seen corresponding path program 1 times [2019-11-07 04:32:21,202 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:21,202 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885261375] [2019-11-07 04:32:21,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:21,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:32:21,503 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885261375] [2019-11-07 04:32:21,504 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:21,504 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:32:21,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109473774] [2019-11-07 04:32:21,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:32:21,505 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:21,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:32:21,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:32:21,506 INFO L87 Difference]: Start difference. First operand 335 states and 376 transitions. Second operand 14 states. [2019-11-07 04:32:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:21,945 INFO L93 Difference]: Finished difference Result 665 states and 766 transitions. [2019-11-07 04:32:21,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:32:21,947 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2019-11-07 04:32:21,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:21,951 INFO L225 Difference]: With dead ends: 665 [2019-11-07 04:32:21,951 INFO L226 Difference]: Without dead ends: 464 [2019-11-07 04:32:21,952 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-11-07 04:32:21,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-11-07 04:32:22,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 444. [2019-11-07 04:32:22,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2019-11-07 04:32:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 506 transitions. [2019-11-07 04:32:22,016 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 506 transitions. Word has length 81 [2019-11-07 04:32:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:22,016 INFO L462 AbstractCegarLoop]: Abstraction has 444 states and 506 transitions. [2019-11-07 04:32:22,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:32:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 506 transitions. [2019-11-07 04:32:22,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-07 04:32:22,020 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:22,021 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:32:22,021 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:22,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:22,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1956980434, now seen corresponding path program 1 times [2019-11-07 04:32:22,022 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:22,022 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611011849] [2019-11-07 04:32:22,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:32:22,156 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611011849] [2019-11-07 04:32:22,156 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987477524] [2019-11-07 04:32:22,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:22,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-07 04:32:22,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:32:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:32:22,586 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:32:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:32:23,198 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:32:23,199 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2019-11-07 04:32:23,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549596687] [2019-11-07 04:32:23,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:32:23,200 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:23,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:32:23,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:32:23,201 INFO L87 Difference]: Start difference. First operand 444 states and 506 transitions. Second operand 8 states. [2019-11-07 04:32:23,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:23,851 INFO L93 Difference]: Finished difference Result 1267 states and 1475 transitions. [2019-11-07 04:32:23,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:32:23,852 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2019-11-07 04:32:23,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:23,858 INFO L225 Difference]: With dead ends: 1267 [2019-11-07 04:32:23,859 INFO L226 Difference]: Without dead ends: 845 [2019-11-07 04:32:23,861 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:32:23,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-11-07 04:32:23,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 830. [2019-11-07 04:32:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2019-11-07 04:32:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 950 transitions. [2019-11-07 04:32:23,936 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 950 transitions. Word has length 91 [2019-11-07 04:32:23,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:23,937 INFO L462 AbstractCegarLoop]: Abstraction has 830 states and 950 transitions. [2019-11-07 04:32:23,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:32:23,937 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 950 transitions. [2019-11-07 04:32:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-11-07 04:32:23,943 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:23,944 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:32:24,149 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:24,149 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:24,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:24,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1214498269, now seen corresponding path program 1 times [2019-11-07 04:32:24,150 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:24,150 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143243932] [2019-11-07 04:32:24,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:32:24,307 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143243932] [2019-11-07 04:32:24,307 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:24,308 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:32:24,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370108431] [2019-11-07 04:32:24,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:32:24,309 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:24,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:32:24,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:32:24,310 INFO L87 Difference]: Start difference. First operand 830 states and 950 transitions. Second operand 12 states. [2019-11-07 04:32:26,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:26,348 INFO L93 Difference]: Finished difference Result 1655 states and 1929 transitions. [2019-11-07 04:32:26,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:32:26,348 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-11-07 04:32:26,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:26,357 INFO L225 Difference]: With dead ends: 1655 [2019-11-07 04:32:26,358 INFO L226 Difference]: Without dead ends: 1233 [2019-11-07 04:32:26,361 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2019-11-07 04:32:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2019-11-07 04:32:26,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1199. [2019-11-07 04:32:26,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2019-11-07 04:32:26,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1369 transitions. [2019-11-07 04:32:26,464 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1369 transitions. Word has length 94 [2019-11-07 04:32:26,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:26,464 INFO L462 AbstractCegarLoop]: Abstraction has 1199 states and 1369 transitions. [2019-11-07 04:32:26,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:32:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1369 transitions. [2019-11-07 04:32:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-11-07 04:32:26,469 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:26,469 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:32:26,470 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:26,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:26,470 INFO L82 PathProgramCache]: Analyzing trace with hash 393718867, now seen corresponding path program 1 times [2019-11-07 04:32:26,472 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:26,472 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083236824] [2019-11-07 04:32:26,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:32:26,648 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083236824] [2019-11-07 04:32:26,649 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:26,649 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:32:26,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355528357] [2019-11-07 04:32:26,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:32:26,650 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:26,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:32:26,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:32:26,651 INFO L87 Difference]: Start difference. First operand 1199 states and 1369 transitions. Second operand 10 states. [2019-11-07 04:32:26,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:26,969 INFO L93 Difference]: Finished difference Result 2388 states and 2729 transitions. [2019-11-07 04:32:26,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 04:32:26,970 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2019-11-07 04:32:26,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:26,977 INFO L225 Difference]: With dead ends: 2388 [2019-11-07 04:32:26,977 INFO L226 Difference]: Without dead ends: 1211 [2019-11-07 04:32:26,982 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:32:26,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2019-11-07 04:32:27,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1115. [2019-11-07 04:32:27,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2019-11-07 04:32:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1222 transitions. [2019-11-07 04:32:27,085 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1222 transitions. Word has length 94 [2019-11-07 04:32:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:27,086 INFO L462 AbstractCegarLoop]: Abstraction has 1115 states and 1222 transitions. [2019-11-07 04:32:27,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:32:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1222 transitions. [2019-11-07 04:32:27,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-07 04:32:27,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:27,091 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:32:27,092 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:27,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1496595950, now seen corresponding path program 1 times [2019-11-07 04:32:27,092 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:27,093 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870542386] [2019-11-07 04:32:27,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 04:32:27,190 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870542386] [2019-11-07 04:32:27,191 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401584752] [2019-11-07 04:32:27,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:27,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-07 04:32:27,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:32:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:32:27,531 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:32:27,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:27,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:27,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:27,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:27,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:32:27,966 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:32:27,966 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 21 [2019-11-07 04:32:27,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616353065] [2019-11-07 04:32:27,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:32:27,967 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:27,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:32:27,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-11-07 04:32:27,968 INFO L87 Difference]: Start difference. First operand 1115 states and 1222 transitions. Second operand 9 states. [2019-11-07 04:32:28,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:28,653 INFO L93 Difference]: Finished difference Result 2525 states and 2814 transitions. [2019-11-07 04:32:28,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:32:28,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 132 [2019-11-07 04:32:28,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:28,668 INFO L225 Difference]: With dead ends: 2525 [2019-11-07 04:32:28,669 INFO L226 Difference]: Without dead ends: 1708 [2019-11-07 04:32:28,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:32:28,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2019-11-07 04:32:28,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1620. [2019-11-07 04:32:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1620 states. [2019-11-07 04:32:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 1774 transitions. [2019-11-07 04:32:28,813 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 1774 transitions. Word has length 132 [2019-11-07 04:32:28,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:28,816 INFO L462 AbstractCegarLoop]: Abstraction has 1620 states and 1774 transitions. [2019-11-07 04:32:28,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:32:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 1774 transitions. [2019-11-07 04:32:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:32:28,824 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:28,824 INFO L410 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:32:29,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:29,038 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:29,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:29,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1038300165, now seen corresponding path program 1 times [2019-11-07 04:32:29,039 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:29,039 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902162830] [2019-11-07 04:32:29,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:32:29,256 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902162830] [2019-11-07 04:32:29,256 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926360010] [2019-11-07 04:32:29,257 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 [2019-11-07 04:32:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:29,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-07 04:32:29,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:32:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 04:32:29,601 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:32:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 04:32:30,239 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:32:30,239 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 11] total 24 [2019-11-07 04:32:30,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656079961] [2019-11-07 04:32:30,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:32:30,241 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:30,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:32:30,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-11-07 04:32:30,241 INFO L87 Difference]: Start difference. First operand 1620 states and 1774 transitions. Second operand 11 states. [2019-11-07 04:32:30,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:30,988 INFO L93 Difference]: Finished difference Result 3295 states and 3754 transitions. [2019-11-07 04:32:30,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:32:30,989 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2019-11-07 04:32:30,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:30,992 INFO L225 Difference]: With dead ends: 3295 [2019-11-07 04:32:30,992 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 04:32:31,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:32:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 04:32:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 04:32:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 04:32:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 04:32:31,004 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2019-11-07 04:32:31,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:31,004 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 04:32:31,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:32:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 04:32:31,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 04:32:31,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:31,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 04:32:31,731 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-11-07 04:32:32,631 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 23 [2019-11-07 04:32:32,816 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 23 [2019-11-07 04:32:33,253 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2019-11-07 04:32:33,440 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2019-11-07 04:32:33,969 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 21 [2019-11-07 04:32:34,229 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2019-11-07 04:32:34,479 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-11-07 04:32:34,714 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2019-11-07 04:32:35,037 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2019-11-07 04:32:35,672 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 15 [2019-11-07 04:32:36,209 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2019-11-07 04:32:36,447 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2019-11-07 04:32:36,796 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2019-11-07 04:32:36,979 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-11-07 04:32:37,143 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2019-11-07 04:32:37,694 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2019-11-07 04:32:37,881 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point L163-2(lines 163 184) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point L185(lines 162 186) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 173) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 138 193) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 138 193) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point L220-2(lines 220 245) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point L246(lines 219 247) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 194 253) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point L239(line 239) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 194 253) no Hoare annotation was computed. [2019-11-07 04:32:37,963 INFO L443 ceAbstractionStarter]: For program point L239-1(line 239) no Hoare annotation was computed. [2019-11-07 04:32:37,964 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 194 253) no Hoare annotation was computed. [2019-11-07 04:32:37,964 INFO L443 ceAbstractionStarter]: For program point L226(lines 226 230) no Hoare annotation was computed. [2019-11-07 04:32:37,964 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 582 588) the Hoare annotation is: true [2019-11-07 04:32:37,964 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 582 588) no Hoare annotation was computed. [2019-11-07 04:32:37,964 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 589 597) no Hoare annotation was computed. [2019-11-07 04:32:37,964 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 589 597) the Hoare annotation is: true [2019-11-07 04:32:37,964 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 992 1014) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,965 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 992 1014) no Hoare annotation was computed. [2019-11-07 04:32:37,965 INFO L439 ceAbstractionStarter]: At program point L1004(line 1004) the Hoare annotation is: (or (and (= main_~tmp~11 1) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~11 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,965 INFO L439 ceAbstractionStarter]: At program point L1004-1(line 1004) the Hoare annotation is: (or (and (= main_~tmp~11 1) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~11 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,965 INFO L443 ceAbstractionStarter]: For program point L1002(lines 1002 1009) no Hoare annotation was computed. [2019-11-07 04:32:37,965 INFO L443 ceAbstractionStarter]: For program point L1002-1(lines 1002 1009) no Hoare annotation was computed. [2019-11-07 04:32:37,965 INFO L443 ceAbstractionStarter]: For program point L1000(line 1000) no Hoare annotation was computed. [2019-11-07 04:32:37,966 INFO L439 ceAbstractionStarter]: At program point L999(line 999) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,966 INFO L439 ceAbstractionStarter]: At program point L998(line 998) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,966 INFO L439 ceAbstractionStarter]: At program point L998-1(line 998) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,966 INFO L443 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2019-11-07 04:32:37,966 INFO L443 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2019-11-07 04:32:37,966 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 951 974) no Hoare annotation was computed. [2019-11-07 04:32:37,966 INFO L443 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L958(line 958) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L957(line 957) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 951 974) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L956(line 956) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 951 974) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L969(line 969) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L966(line 966) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L965(line 965) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L964(line 964) no Hoare annotation was computed. [2019-11-07 04:32:37,967 INFO L443 ceAbstractionStarter]: For program point L963(line 963) no Hoare annotation was computed. [2019-11-07 04:32:37,968 INFO L443 ceAbstractionStarter]: For program point L962(line 962) no Hoare annotation was computed. [2019-11-07 04:32:37,968 INFO L443 ceAbstractionStarter]: For program point L673(lines 673 681) no Hoare annotation was computed. [2019-11-07 04:32:37,968 INFO L439 ceAbstractionStarter]: At program point L671(line 671) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,968 INFO L443 ceAbstractionStarter]: For program point L671-1(line 671) no Hoare annotation was computed. [2019-11-07 04:32:37,968 INFO L443 ceAbstractionStarter]: For program point L669(lines 669 686) no Hoare annotation was computed. [2019-11-07 04:32:37,968 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 665 689) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,968 INFO L439 ceAbstractionStarter]: At program point L684(line 684) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,969 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 665 689) no Hoare annotation was computed. [2019-11-07 04:32:37,969 INFO L443 ceAbstractionStarter]: For program point L684-1(lines 665 689) no Hoare annotation was computed. [2019-11-07 04:32:37,969 INFO L439 ceAbstractionStarter]: At program point L679(line 679) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,969 INFO L439 ceAbstractionStarter]: At program point L675(line 675) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,969 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 760 768) no Hoare annotation was computed. [2019-11-07 04:32:37,969 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 760 768) the Hoare annotation is: true [2019-11-07 04:32:37,969 INFO L446 ceAbstractionStarter]: At program point L831(line 831) the Hoare annotation is: true [2019-11-07 04:32:37,970 INFO L443 ceAbstractionStarter]: For program point L831-1(line 831) no Hoare annotation was computed. [2019-11-07 04:32:37,970 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 824 842) the Hoare annotation is: true [2019-11-07 04:32:37,970 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 824 842) no Hoare annotation was computed. [2019-11-07 04:32:37,970 INFO L443 ceAbstractionStarter]: For program point L799(line 799) no Hoare annotation was computed. [2019-11-07 04:32:37,970 INFO L443 ceAbstractionStarter]: For program point L799-1(line 799) no Hoare annotation was computed. [2019-11-07 04:32:37,970 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 769 804) no Hoare annotation was computed. [2019-11-07 04:32:37,970 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 769 804) no Hoare annotation was computed. [2019-11-07 04:32:37,970 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 575 581) no Hoare annotation was computed. [2019-11-07 04:32:37,971 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 575 581) the Hoare annotation is: true [2019-11-07 04:32:37,971 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 92 137) no Hoare annotation was computed. [2019-11-07 04:32:37,971 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 92 137) no Hoare annotation was computed. [2019-11-07 04:32:37,971 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 405 450) no Hoare annotation was computed. [2019-11-07 04:32:37,971 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 405 450) no Hoare annotation was computed. [2019-11-07 04:32:37,971 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 982 991) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,971 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 982 991) no Hoare annotation was computed. [2019-11-07 04:32:37,972 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 982 991) no Hoare annotation was computed. [2019-11-07 04:32:37,972 INFO L443 ceAbstractionStarter]: For program point L754-1(line 754) no Hoare annotation was computed. [2019-11-07 04:32:37,972 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 749 759) the Hoare annotation is: true [2019-11-07 04:32:37,972 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 749 759) no Hoare annotation was computed. [2019-11-07 04:32:37,972 INFO L446 ceAbstractionStarter]: At program point L754(line 754) the Hoare annotation is: true [2019-11-07 04:32:37,972 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 741 748) the Hoare annotation is: (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-11-07 04:32:37,972 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 741 748) no Hoare annotation was computed. [2019-11-07 04:32:37,972 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 537 550) no Hoare annotation was computed. [2019-11-07 04:32:37,973 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 537 550) the Hoare annotation is: true [2019-11-07 04:32:37,973 INFO L439 ceAbstractionStarter]: At program point L705(line 705) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,973 INFO L439 ceAbstractionStarter]: At program point L701(line 701) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,973 INFO L443 ceAbstractionStarter]: For program point L699(lines 699 707) no Hoare annotation was computed. [2019-11-07 04:32:37,973 INFO L439 ceAbstractionStarter]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,973 INFO L443 ceAbstractionStarter]: For program point L697-1(line 697) no Hoare annotation was computed. [2019-11-07 04:32:37,974 INFO L443 ceAbstractionStarter]: For program point L695(lines 695 712) no Hoare annotation was computed. [2019-11-07 04:32:37,974 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 691 715) no Hoare annotation was computed. [2019-11-07 04:32:37,974 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 691 715) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,974 INFO L439 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,974 INFO L443 ceAbstractionStarter]: For program point L710-1(lines 691 715) no Hoare annotation was computed. [2019-11-07 04:32:37,974 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 631 637) no Hoare annotation was computed. [2019-11-07 04:32:37,974 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 631 637) the Hoare annotation is: true [2019-11-07 04:32:37,975 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 853 918) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,975 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 853 918) no Hoare annotation was computed. [2019-11-07 04:32:37,975 INFO L439 ceAbstractionStarter]: At program point L911(lines 862 912) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:37,975 INFO L439 ceAbstractionStarter]: At program point L901-2(lines 893 906) the Hoare annotation is: (let ((.cse7 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse5 (or .cse7 (= 1 ~methaneLevelCritical~0))) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3)) (.cse4 (= ~pumpRunning~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse6) (not (= |old(~waterLevel~0)| 1)) .cse7 (and .cse0 .cse5 .cse2 .cse3 .cse4)))) [2019-11-07 04:32:37,975 INFO L443 ceAbstractionStarter]: For program point L864(lines 863 910) no Hoare annotation was computed. [2019-11-07 04:32:37,975 INFO L439 ceAbstractionStarter]: At program point L895(line 895) the Hoare annotation is: (let ((.cse7 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse5 (or .cse7 (= 1 ~methaneLevelCritical~0))) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3)) (.cse4 (= ~pumpRunning~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse6) (not (= |old(~waterLevel~0)| 1)) .cse7 (and .cse0 .cse5 .cse2 .cse3 .cse4)))) [2019-11-07 04:32:37,976 INFO L443 ceAbstractionStarter]: For program point L893(lines 893 906) no Hoare annotation was computed. [2019-11-07 04:32:37,976 INFO L439 ceAbstractionStarter]: At program point L885(line 885) the Hoare annotation is: (let ((.cse1 (= 1 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse5) (and (and .cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse2 .cse5) .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse4 (and .cse0 (= 0 ~methaneLevelCritical~0) .cse2)) .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 04:32:37,976 INFO L443 ceAbstractionStarter]: For program point L883(lines 883 889) no Hoare annotation was computed. [2019-11-07 04:32:37,976 INFO L443 ceAbstractionStarter]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2019-11-07 04:32:37,976 INFO L439 ceAbstractionStarter]: At program point L908(lines 863 910) the Hoare annotation is: (let ((.cse5 (= 0 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 test_~splverifierCounter~0)) (.cse3 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (not (= ~waterLevel~0 2)) .cse5 .cse2 .cse3 .cse6) (and .cse0 .cse5 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse6) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 04:32:37,976 INFO L439 ceAbstractionStarter]: At program point L875(line 875) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0)) (.cse5 (= 0 test_~splverifierCounter~0))) (let ((.cse0 (and .cse4 .cse5 (= ~pumpRunning~0 0))) (.cse3 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse2 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse4 .cse3 .cse5 .cse2 .cse6) (and .cse4 .cse1 .cse5 .cse2 .cse6) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))))) [2019-11-07 04:32:37,977 INFO L443 ceAbstractionStarter]: For program point L873(lines 873 879) no Hoare annotation was computed. [2019-11-07 04:32:37,977 INFO L443 ceAbstractionStarter]: For program point L873-1(lines 873 879) no Hoare annotation was computed. [2019-11-07 04:32:37,977 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 853 918) no Hoare annotation was computed. [2019-11-07 04:32:37,977 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 359 404) no Hoare annotation was computed. [2019-11-07 04:32:37,977 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 359 404) no Hoare annotation was computed. [2019-11-07 04:32:37,977 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 716 723) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-11-07 04:32:37,977 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 716 723) no Hoare annotation was computed. [2019-11-07 04:32:37,977 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 551 559) the Hoare annotation is: true [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 551 559) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 505 527) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 505 527) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 256 358) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point L285(lines 285 301) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point L306(lines 305 325) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point L337(line 337) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point L337-1(line 337) no Hoare annotation was computed. [2019-11-07 04:32:37,978 INFO L443 ceAbstractionStarter]: For program point L302(lines 302 343) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 256 358) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point L321(line 321) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point L321-1(line 321) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 284) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 256 358) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point L305-2(lines 305 325) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point L326(lines 304 327) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 565 574) no Hoare annotation was computed. [2019-11-07 04:32:37,979 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 565 574) no Hoare annotation was computed. [2019-11-07 04:32:37,980 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (or (< ~waterLevel~0 3) (<= 3 |old(~waterLevel~0)|)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2019-11-07 04:32:37,980 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:32:37,980 INFO L439 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (or .cse0 (and (= ~methaneLevelCritical~0 activatePump_~tmp~7) (= ~pumpRunning~0 0)) .cse1 .cse2))) [2019-11-07 04:32:37,980 INFO L443 ceAbstractionStarter]: For program point L735-1(lines 724 740) no Hoare annotation was computed. [2019-11-07 04:32:37,980 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 724 740) no Hoare annotation was computed. [2019-11-07 04:32:37,980 INFO L443 ceAbstractionStarter]: For program point L731(lines 731 737) no Hoare annotation was computed. [2019-11-07 04:32:37,980 INFO L439 ceAbstractionStarter]: At program point L729(line 729) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-11-07 04:32:37,981 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 724 740) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-11-07 04:32:37,981 INFO L443 ceAbstractionStarter]: For program point L729-1(line 729) no Hoare annotation was computed. [2019-11-07 04:32:37,981 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 528 536) the Hoare annotation is: true [2019-11-07 04:32:37,981 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 528 536) no Hoare annotation was computed. [2019-11-07 04:32:37,981 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 805 823) no Hoare annotation was computed. [2019-11-07 04:32:37,981 INFO L446 ceAbstractionStarter]: At program point L812(line 812) the Hoare annotation is: true [2019-11-07 04:32:37,981 INFO L443 ceAbstractionStarter]: For program point L812-1(line 812) no Hoare annotation was computed. [2019-11-07 04:32:37,981 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 805 823) the Hoare annotation is: true [2019-11-07 04:32:37,982 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:32:37,982 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-11-07 04:32:37,982 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 484 495) the Hoare annotation is: (let ((.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse0 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1) .cse2) (or .cse2 (or .cse0 (or .cse1 (not (= 1 ~pumpRunning~0))))))) [2019-11-07 04:32:37,982 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 484 495) no Hoare annotation was computed. [2019-11-07 04:32:37,982 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 496 504) the Hoare annotation is: true [2019-11-07 04:32:37,982 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 496 504) no Hoare annotation was computed. [2019-11-07 04:32:37,982 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 607 630) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1)) (and .cse2 (= ~pumpRunning~0 1))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse1 (< ~waterLevel~0 2)) (or .cse3 (= 1 ~waterLevel~0) .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 0))))) [2019-11-07 04:32:37,983 INFO L439 ceAbstractionStarter]: At program point L620(line 620) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 2)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and (= ~pumpRunning~0 1) .cse0) (or .cse1 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse2 .cse0) (or .cse3 (= 1 ~waterLevel~0) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse1 .cse2 (and (< ~waterLevel~0 3) (= ~pumpRunning~0 0))))) [2019-11-07 04:32:37,983 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 607 630) no Hoare annotation was computed. [2019-11-07 04:32:37,983 INFO L439 ceAbstractionStarter]: At program point L618(lines 618 624) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 2)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 1)) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse7 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0))) (and (or (and .cse0 .cse1) (or .cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse3)) (and .cse4 .cse1)) (or .cse5 .cse6 .cse2 .cse3 (and .cse7 .cse0)) (or (not (< |old(~waterLevel~0)| 2)) .cse5 .cse3 .cse1) (or .cse5 (= 1 ~waterLevel~0) .cse3 (not (= |old(~waterLevel~0)| 1))) (or .cse5 (and .cse7 .cse4) .cse2 .cse3 (not .cse6) (and (not (= ~waterLevel~0 2)) .cse7 .cse0)))) [2019-11-07 04:32:37,983 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 607 630) no Hoare annotation was computed. [2019-11-07 04:32:37,983 INFO L439 ceAbstractionStarter]: At program point L613(line 613) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (< ~waterLevel~0 3) (= ~pumpRunning~0 1)) (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1))))) [2019-11-07 04:32:37,984 INFO L443 ceAbstractionStarter]: For program point L611(lines 610 629) no Hoare annotation was computed. [2019-11-07 04:32:37,984 INFO L446 ceAbstractionStarter]: At program point L931-2(lines 931 945) the Hoare annotation is: true [2019-11-07 04:32:37,984 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 921 950) no Hoare annotation was computed. [2019-11-07 04:32:37,984 INFO L446 ceAbstractionStarter]: At program point L927(line 927) the Hoare annotation is: true [2019-11-07 04:32:37,984 INFO L443 ceAbstractionStarter]: For program point L927-1(line 927) no Hoare annotation was computed. [2019-11-07 04:32:37,984 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 921 950) the Hoare annotation is: true [2019-11-07 04:32:37,984 INFO L446 ceAbstractionStarter]: At program point L946(lines 921 950) the Hoare annotation is: true [2019-11-07 04:32:37,984 INFO L443 ceAbstractionStarter]: For program point L942(line 942) no Hoare annotation was computed. [2019-11-07 04:32:37,985 INFO L443 ceAbstractionStarter]: For program point L935(lines 935 939) no Hoare annotation was computed. [2019-11-07 04:32:37,985 INFO L446 ceAbstractionStarter]: At program point L935-1(lines 935 939) the Hoare annotation is: true [2019-11-07 04:32:37,985 INFO L439 ceAbstractionStarter]: At program point L65(line 65) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= 1 ~pumpRunning~0)) .cse2) (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2019-11-07 04:32:37,985 INFO L443 ceAbstractionStarter]: For program point L65-1(line 65) no Hoare annotation was computed. [2019-11-07 04:32:37,985 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 81) no Hoare annotation was computed. [2019-11-07 04:32:37,985 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 52 84) no Hoare annotation was computed. [2019-11-07 04:32:37,985 INFO L446 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: true [2019-11-07 04:32:37,985 INFO L443 ceAbstractionStarter]: For program point L59-1(line 59) no Hoare annotation was computed. [2019-11-07 04:32:37,986 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 52 84) the Hoare annotation is: true [2019-11-07 04:32:37,986 INFO L439 ceAbstractionStarter]: At program point L75(line 75) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (< ~waterLevel~0 2)) .cse0 .cse1) (or .cse2 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (= ~methaneLevelCritical~0 0) .cse2 .cse1))) [2019-11-07 04:32:37,986 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 77) no Hoare annotation was computed. [2019-11-07 04:32:37,986 INFO L439 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (let ((.cse2 (not (= 1 ~pumpRunning~0))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (< ~waterLevel~0 2)) .cse4 .cse3) (or (= ~waterLevel~0 2) .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse3))) [2019-11-07 04:32:37,986 INFO L443 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2019-11-07 04:32:37,986 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 80) no Hoare annotation was computed. [2019-11-07 04:32:37,986 INFO L443 ceAbstractionStarter]: For program point L67-1(lines 52 84) no Hoare annotation was computed. [2019-11-07 04:32:37,987 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 460 471) the Hoare annotation is: (or (< ~waterLevel~0 3) (or (not (= ~systemActive~0 1)) (not (< |old(~waterLevel~0)| 3)) (not (= 1 ~pumpRunning~0)))) [2019-11-07 04:32:37,987 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 460 471) no Hoare annotation was computed. [2019-11-07 04:32:37,987 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 975 981) no Hoare annotation was computed. [2019-11-07 04:32:37,987 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 975 981) the Hoare annotation is: true [2019-11-07 04:32:37,987 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:32:37,987 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-11-07 04:32:37,987 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 04:32:37,987 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 04:32:37,988 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 843 850) no Hoare annotation was computed. [2019-11-07 04:32:37,988 INFO L439 ceAbstractionStarter]: At program point startSystemENTRY(lines 843 850) the Hoare annotation is: (let ((.cse0 (not (< ~waterLevel~0 3))) (.cse1 (not (= |old(~systemActive~0)| 1))) (.cse2 (= 1 ~systemActive~0))) (and (or (or .cse0 (or (not (= 1 ~pumpRunning~0)) .cse1)) .cse2) (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2019-11-07 04:32:37,988 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 639 663) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,988 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 639 663) no Hoare annotation was computed. [2019-11-07 04:32:37,988 INFO L439 ceAbstractionStarter]: At program point L658(line 658) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,988 INFO L443 ceAbstractionStarter]: For program point L658-1(lines 639 663) no Hoare annotation was computed. [2019-11-07 04:32:37,989 INFO L439 ceAbstractionStarter]: At program point L653(line 653) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (and (not (= ~waterLevel~0 2)) (= ~pumpRunning~0 0))) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,989 INFO L439 ceAbstractionStarter]: At program point L649(line 649) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (and (or (not (= ~waterLevel~0 2)) (= 1 processEnvironment__wrappee__highWaterSensor_~tmp~4)) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,989 INFO L443 ceAbstractionStarter]: For program point L647(lines 647 655) no Hoare annotation was computed. [2019-11-07 04:32:37,989 INFO L439 ceAbstractionStarter]: At program point L645(line 645) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:37,989 INFO L443 ceAbstractionStarter]: For program point L645-1(line 645) no Hoare annotation was computed. [2019-11-07 04:32:37,989 INFO L443 ceAbstractionStarter]: For program point L643(lines 643 660) no Hoare annotation was computed. [2019-11-07 04:32:37,990 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 472 483) no Hoare annotation was computed. [2019-11-07 04:32:37,990 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 472 483) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 .cse1 (not (= 1 ~pumpRunning~0))) .cse2) (or (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)) .cse2))) [2019-11-07 04:32:37,990 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-11-07 04:32:37,990 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-11-07 04:32:37,990 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-11-07 04:32:38,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:32:38 BoogieIcfgContainer [2019-11-07 04:32:38,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 04:32:38,008 INFO L168 Benchmark]: Toolchain (without parser) took 22326.47 ms. Allocated memory was 137.9 MB in the beginning and 540.5 MB in the end (delta: 402.7 MB). Free memory was 101.7 MB in the beginning and 117.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 421.0 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:38,009 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-07 04:32:38,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.48 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 165.3 MB in the end (delta: -63.8 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:38,011 INFO L168 Benchmark]: Boogie Preprocessor took 102.61 ms. Allocated memory is still 201.9 MB. Free memory was 165.3 MB in the beginning and 161.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:38,012 INFO L168 Benchmark]: RCFGBuilder took 1846.85 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 161.1 MB in the beginning and 138.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:38,012 INFO L168 Benchmark]: TraceAbstraction took 19563.22 ms. Allocated memory was 234.4 MB in the beginning and 540.5 MB in the end (delta: 306.2 MB). Free memory was 138.6 MB in the beginning and 117.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 361.4 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:38,016 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.48 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 165.3 MB in the end (delta: -63.8 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.61 ms. Allocated memory is still 201.9 MB. Free memory was 165.3 MB in the beginning and 161.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1846.85 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 161.1 MB in the beginning and 138.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19563.22 ms. Allocated memory was 234.4 MB in the beginning and 540.5 MB in the end (delta: 306.2 MB). Free memory was 138.6 MB in the beginning and 117.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 361.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 862]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: ((((((!(\old(systemActive) == 1) || ((((1 == systemActive && 1 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || !(0 == \old(pumpRunning))) || (((((1 == systemActive && !(waterLevel == 2)) && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || ((((1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || ((((1 == systemActive && 1 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 206 locations, 1 error locations. Result: SAFE, OverallTime: 19.4s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, HoareTripleCheckerStatistics: 1888 SDtfs, 1689 SDslu, 6679 SDs, 0 SdLazy, 3266 SolverSat, 899 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 902 GetRequests, 759 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1620occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 280 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 3518 PreInvPairs, 3664 NumberOfFragments, 1891 HoareAnnotationTreeSize, 3518 FomulaSimplifications, 7702 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 72 FomulaSimplificationsInter, 21445 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1297 NumberOfCodeBlocks, 1297 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1648 ConstructedInterpolants, 0 QuantifiedInterpolants, 330575 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2546 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 244/264 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...