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_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:16:08,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:16:08,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:16:08,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:16:08,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:16:08,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:16:08,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:16:08,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:16:08,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:16:08,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:16:08,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:16:08,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:16:08,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:16:08,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:16:08,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:16:08,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:16:08,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:16:08,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:16:08,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:16:08,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:16:08,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:16:08,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:16:08,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:16:08,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:16:08,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:16:08,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:16:08,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:16:08,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:16:08,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:16:08,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:16:08,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:16:08,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:16:08,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:16:08,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:16:08,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:16:08,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:16:08,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:16:08,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:16:08,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:16:08,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:16:08,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:16:08,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:16:08,261 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:16:08,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:16:08,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:16:08,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:16:08,263 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:16:08,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:16:08,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:16:08,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:16:08,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:16:08,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:16:08,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:16:08,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:16:08,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:16:08,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:16:08,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:16:08,265 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:16:08,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:16:08,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:16:08,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:16:08,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:16:08,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:16:08,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:08,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:16:08,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:16:08,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:16:08,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:16:08,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:16:08,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:16:08,268 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 [2019-10-13 23:16:08,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:16:08,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:16:08,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:16:08,570 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:16:08,570 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:16:08,571 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2019-10-13 23:16:08,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f92ef625f/f66eeaaee7604cb5890b11b52338362d/FLAG44540e12f [2019-10-13 23:16:09,182 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:16:09,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2019-10-13 23:16:09,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f92ef625f/f66eeaaee7604cb5890b11b52338362d/FLAG44540e12f [2019-10-13 23:16:09,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f92ef625f/f66eeaaee7604cb5890b11b52338362d [2019-10-13 23:16:09,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:16:09,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:16:09,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:09,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:16:09,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:16:09,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:09" (1/1) ... [2019-10-13 23:16:09,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a48b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:09, skipping insertion in model container [2019-10-13 23:16:09,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:09" (1/1) ... [2019-10-13 23:16:09,503 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:16:09,569 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:16:10,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:10,111 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:16:10,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:10,251 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:16:10,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10 WrapperNode [2019-10-13 23:16:10,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:10,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:16:10,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:16:10,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:16:10,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... [2019-10-13 23:16:10,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... [2019-10-13 23:16:10,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... [2019-10-13 23:16:10,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... [2019-10-13 23:16:10,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... [2019-10-13 23:16:10,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... [2019-10-13 23:16:10,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... [2019-10-13 23:16:10,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:16:10,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:16:10,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:16:10,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:16:10,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:16:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:16:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-13 23:16:10,412 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:16:10,412 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:16:10,412 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:16:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:16:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:16:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:16:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:16:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:16:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:16:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:16:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:16:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:16:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:16:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:16:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:16:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:16:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:16:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:16:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:16:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:16:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:16:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:16:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:16:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:16:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:16:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:16:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:16:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:16:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:16:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:16:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:16:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:16:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-13 23:16:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:16:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:16:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:16:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:16:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:16:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:16:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:16:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:16:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:16:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:16:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:16:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:16:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:16:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:16:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:16:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:16:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:16:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:16:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:16:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:16:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:16:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:16:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:16:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:16:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:16:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:16:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:16:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:16:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:16:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:16:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:16:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:16:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:16:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:16:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:16:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:16:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:16:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:16:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:16:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:16:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:16:11,944 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:16:11,944 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:16:11,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:11 BoogieIcfgContainer [2019-10-13 23:16:11,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:16:11,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:16:11,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:16:11,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:16:11,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:16:09" (1/3) ... [2019-10-13 23:16:11,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b7d00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:11, skipping insertion in model container [2019-10-13 23:16:11,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:10" (2/3) ... [2019-10-13 23:16:11,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b7d00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:11, skipping insertion in model container [2019-10-13 23:16:11,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:11" (3/3) ... [2019-10-13 23:16:11,954 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2019-10-13 23:16:11,964 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:16:11,973 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:16:11,986 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:16:12,013 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:16:12,013 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:16:12,013 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:16:12,013 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:16:12,014 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:16:12,014 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:16:12,014 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:16:12,014 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:16:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-13 23:16:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:16:12,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:12,049 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:12,052 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:12,058 INFO L82 PathProgramCache]: Analyzing trace with hash 268822904, now seen corresponding path program 1 times [2019-10-13 23:16:12,068 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:12,069 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417407474] [2019-10-13 23:16:12,069 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:12,069 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:12,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:12,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417407474] [2019-10-13 23:16:12,434 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:12,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:16:12,436 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045478061] [2019-10-13 23:16:12,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:16:12,445 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:12,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:16:12,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:16:12,462 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-13 23:16:12,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:12,508 INFO L93 Difference]: Finished difference Result 231 states and 280 transitions. [2019-10-13 23:16:12,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:16:12,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2019-10-13 23:16:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:12,528 INFO L225 Difference]: With dead ends: 231 [2019-10-13 23:16:12,529 INFO L226 Difference]: Without dead ends: 116 [2019-10-13 23:16:12,539 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:16:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-13 23:16:12,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-13 23:16:12,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-13 23:16:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-10-13 23:16:12,605 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 47 [2019-10-13 23:16:12,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:12,606 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-10-13 23:16:12,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:16:12,606 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-10-13 23:16:12,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-13 23:16:12,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:12,610 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:12,611 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:12,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:12,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1140312970, now seen corresponding path program 1 times [2019-10-13 23:16:12,612 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:12,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142514467] [2019-10-13 23:16:12,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:12,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:12,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:12,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142514467] [2019-10-13 23:16:12,745 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:12,745 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:16:12,745 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845362415] [2019-10-13 23:16:12,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:16:12,748 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:12,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:16:12,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:16:12,748 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-10-13 23:16:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:12,793 INFO L93 Difference]: Finished difference Result 189 states and 219 transitions. [2019-10-13 23:16:12,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:16:12,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-13 23:16:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:12,796 INFO L225 Difference]: With dead ends: 189 [2019-10-13 23:16:12,796 INFO L226 Difference]: Without dead ends: 108 [2019-10-13 23:16:12,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:16:12,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-13 23:16:12,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-13 23:16:12,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-13 23:16:12,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2019-10-13 23:16:12,813 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 48 [2019-10-13 23:16:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:12,813 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2019-10-13 23:16:12,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:16:12,813 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2019-10-13 23:16:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-13 23:16:12,816 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:12,816 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:12,816 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:12,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:12,817 INFO L82 PathProgramCache]: Analyzing trace with hash -853673017, now seen corresponding path program 1 times [2019-10-13 23:16:12,817 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:12,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359326315] [2019-10-13 23:16:12,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:12,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:12,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:12,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359326315] [2019-10-13 23:16:12,997 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:12,998 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:16:12,998 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091995486] [2019-10-13 23:16:12,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:16:12,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:12,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:16:12,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:16:13,000 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2019-10-13 23:16:13,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:13,308 INFO L93 Difference]: Finished difference Result 194 states and 225 transitions. [2019-10-13 23:16:13,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:16:13,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-13 23:16:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:13,310 INFO L225 Difference]: With dead ends: 194 [2019-10-13 23:16:13,310 INFO L226 Difference]: Without dead ends: 108 [2019-10-13 23:16:13,312 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:16:13,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-13 23:16:13,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-13 23:16:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-13 23:16:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2019-10-13 23:16:13,324 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 50 [2019-10-13 23:16:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:13,325 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2019-10-13 23:16:13,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:16:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2019-10-13 23:16:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-13 23:16:13,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:13,328 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:13,328 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:13,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:13,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1855753583, now seen corresponding path program 1 times [2019-10-13 23:16:13,329 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:13,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799680779] [2019-10-13 23:16:13,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:13,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:13,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:13,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799680779] [2019-10-13 23:16:13,461 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:13,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:16:13,462 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942692727] [2019-10-13 23:16:13,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:16:13,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:13,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:16:13,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:16:13,464 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand 5 states. [2019-10-13 23:16:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:13,958 INFO L93 Difference]: Finished difference Result 292 states and 343 transitions. [2019-10-13 23:16:13,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:16:13,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-13 23:16:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:13,963 INFO L225 Difference]: With dead ends: 292 [2019-10-13 23:16:13,964 INFO L226 Difference]: Without dead ends: 206 [2019-10-13 23:16:13,968 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:16:13,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-10-13 23:16:14,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 191. [2019-10-13 23:16:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2019-10-13 23:16:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 212 transitions. [2019-10-13 23:16:14,012 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 212 transitions. Word has length 63 [2019-10-13 23:16:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:14,012 INFO L462 AbstractCegarLoop]: Abstraction has 191 states and 212 transitions. [2019-10-13 23:16:14,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:16:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 212 transitions. [2019-10-13 23:16:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 23:16:14,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:14,015 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:14,015 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:14,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:14,015 INFO L82 PathProgramCache]: Analyzing trace with hash 632214560, now seen corresponding path program 1 times [2019-10-13 23:16:14,016 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:14,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849001433] [2019-10-13 23:16:14,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:14,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:14,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:14,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849001433] [2019-10-13 23:16:14,103 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:14,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:16:14,103 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857936404] [2019-10-13 23:16:14,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:16:14,104 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:14,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:16:14,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:16:14,105 INFO L87 Difference]: Start difference. First operand 191 states and 212 transitions. Second operand 6 states. [2019-10-13 23:16:14,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:14,272 INFO L93 Difference]: Finished difference Result 467 states and 534 transitions. [2019-10-13 23:16:14,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:16:14,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-10-13 23:16:14,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:14,277 INFO L225 Difference]: With dead ends: 467 [2019-10-13 23:16:14,278 INFO L226 Difference]: Without dead ends: 298 [2019-10-13 23:16:14,279 INFO L600 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 [2019-10-13 23:16:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-10-13 23:16:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 288. [2019-10-13 23:16:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2019-10-13 23:16:14,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 323 transitions. [2019-10-13 23:16:14,330 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 323 transitions. Word has length 72 [2019-10-13 23:16:14,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:14,331 INFO L462 AbstractCegarLoop]: Abstraction has 288 states and 323 transitions. [2019-10-13 23:16:14,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:16:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 323 transitions. [2019-10-13 23:16:14,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-13 23:16:14,333 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:14,333 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:14,333 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:14,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:14,333 INFO L82 PathProgramCache]: Analyzing trace with hash 226872434, now seen corresponding path program 1 times [2019-10-13 23:16:14,334 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:14,334 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944173194] [2019-10-13 23:16:14,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:14,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:14,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:14,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944173194] [2019-10-13 23:16:14,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:14,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:16:14,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227780522] [2019-10-13 23:16:14,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:16:14,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:14,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:16:14,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:16:14,669 INFO L87 Difference]: Start difference. First operand 288 states and 323 transitions. Second operand 14 states. [2019-10-13 23:16:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:15,202 INFO L93 Difference]: Finished difference Result 571 states and 659 transitions. [2019-10-13 23:16:15,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:16:15,204 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 75 [2019-10-13 23:16:15,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:15,208 INFO L225 Difference]: With dead ends: 571 [2019-10-13 23:16:15,208 INFO L226 Difference]: Without dead ends: 402 [2019-10-13 23:16:15,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-13 23:16:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-13 23:16:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 382. [2019-10-13 23:16:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2019-10-13 23:16:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 435 transitions. [2019-10-13 23:16:15,241 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 435 transitions. Word has length 75 [2019-10-13 23:16:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:15,241 INFO L462 AbstractCegarLoop]: Abstraction has 382 states and 435 transitions. [2019-10-13 23:16:15,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:16:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 435 transitions. [2019-10-13 23:16:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-13 23:16:15,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:15,244 INFO L380 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] [2019-10-13 23:16:15,244 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:15,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:15,244 INFO L82 PathProgramCache]: Analyzing trace with hash 603804743, now seen corresponding path program 1 times [2019-10-13 23:16:15,245 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:15,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289731389] [2019-10-13 23:16:15,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:15,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:15,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:15,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:16:15,333 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289731389] [2019-10-13 23:16:15,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095547457] [2019-10-13 23:16:15,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:15,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-13 23:16:15,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:16:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:16:15,688 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:16:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:16:16,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:16:16,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2019-10-13 23:16:16,157 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651449068] [2019-10-13 23:16:16,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:16:16,158 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:16,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:16:16,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:16:16,159 INFO L87 Difference]: Start difference. First operand 382 states and 435 transitions. Second operand 8 states. [2019-10-13 23:16:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:16,704 INFO L93 Difference]: Finished difference Result 1083 states and 1261 transitions. [2019-10-13 23:16:16,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:16:16,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2019-10-13 23:16:16,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:16,719 INFO L225 Difference]: With dead ends: 1083 [2019-10-13 23:16:16,720 INFO L226 Difference]: Without dead ends: 723 [2019-10-13 23:16:16,722 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:16:16,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2019-10-13 23:16:16,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 708. [2019-10-13 23:16:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-13 23:16:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 810 transitions. [2019-10-13 23:16:16,781 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 810 transitions. Word has length 85 [2019-10-13 23:16:16,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:16,782 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 810 transitions. [2019-10-13 23:16:16,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:16:16,782 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 810 transitions. [2019-10-13 23:16:16,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 23:16:16,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:16,785 INFO L380 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] [2019-10-13 23:16:16,991 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:16,992 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:16,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1427363981, now seen corresponding path program 1 times [2019-10-13 23:16:16,993 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:16,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747334833] [2019-10-13 23:16:16,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:16,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:16,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:16:17,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747334833] [2019-10-13 23:16:17,187 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:17,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:16:17,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412400616] [2019-10-13 23:16:17,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:16:17,188 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:17,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:16:17,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:16:17,189 INFO L87 Difference]: Start difference. First operand 708 states and 810 transitions. Second operand 12 states. [2019-10-13 23:16:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:18,692 INFO L93 Difference]: Finished difference Result 1409 states and 1647 transitions. [2019-10-13 23:16:18,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:16:18,696 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-10-13 23:16:18,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:18,702 INFO L225 Difference]: With dead ends: 1409 [2019-10-13 23:16:18,702 INFO L226 Difference]: Without dead ends: 1049 [2019-10-13 23:16:18,704 INFO L600 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 [2019-10-13 23:16:18,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2019-10-13 23:16:18,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1015. [2019-10-13 23:16:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-10-13 23:16:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1158 transitions. [2019-10-13 23:16:18,764 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1158 transitions. Word has length 88 [2019-10-13 23:16:18,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:18,764 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 1158 transitions. [2019-10-13 23:16:18,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:16:18,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1158 transitions. [2019-10-13 23:16:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 23:16:18,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:18,767 INFO L380 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] [2019-10-13 23:16:18,768 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:18,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:18,768 INFO L82 PathProgramCache]: Analyzing trace with hash 953400692, now seen corresponding path program 1 times [2019-10-13 23:16:18,768 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:18,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178465108] [2019-10-13 23:16:18,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:18,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:18,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:16:18,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178465108] [2019-10-13 23:16:18,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:18,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:16:18,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481918464] [2019-10-13 23:16:18,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:16:18,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:18,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:16:18,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:16:18,874 INFO L87 Difference]: Start difference. First operand 1015 states and 1158 transitions. Second operand 10 states. [2019-10-13 23:16:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:19,217 INFO L93 Difference]: Finished difference Result 2020 states and 2307 transitions. [2019-10-13 23:16:19,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 23:16:19,218 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-10-13 23:16:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:19,224 INFO L225 Difference]: With dead ends: 2020 [2019-10-13 23:16:19,225 INFO L226 Difference]: Without dead ends: 1027 [2019-10-13 23:16:19,228 INFO L600 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 [2019-10-13 23:16:19,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2019-10-13 23:16:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 955. [2019-10-13 23:16:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2019-10-13 23:16:19,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1041 transitions. [2019-10-13 23:16:19,301 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1041 transitions. Word has length 88 [2019-10-13 23:16:19,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:19,302 INFO L462 AbstractCegarLoop]: Abstraction has 955 states and 1041 transitions. [2019-10-13 23:16:19,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:16:19,302 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1041 transitions. [2019-10-13 23:16:19,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:16:19,308 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:19,309 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:19,309 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:19,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:19,310 INFO L82 PathProgramCache]: Analyzing trace with hash -586669441, now seen corresponding path program 1 times [2019-10-13 23:16:19,310 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:19,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934930235] [2019-10-13 23:16:19,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:19,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:19,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:16:19,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934930235] [2019-10-13 23:16:19,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632632240] [2019-10-13 23:16:19,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:19,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-13 23:16:19,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:16:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:16:19,873 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:16:20,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:20,074 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:20,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:20,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:20,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 23:16:20,330 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:16:20,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 21 [2019-10-13 23:16:20,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785378897] [2019-10-13 23:16:20,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:16:20,331 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:20,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:16:20,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:16:20,332 INFO L87 Difference]: Start difference. First operand 955 states and 1041 transitions. Second operand 9 states. [2019-10-13 23:16:20,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:20,879 INFO L93 Difference]: Finished difference Result 2162 states and 2400 transitions. [2019-10-13 23:16:20,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 23:16:20,879 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 125 [2019-10-13 23:16:20,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:20,888 INFO L225 Difference]: With dead ends: 2162 [2019-10-13 23:16:20,888 INFO L226 Difference]: Without dead ends: 1472 [2019-10-13 23:16:20,891 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:16:20,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2019-10-13 23:16:20,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1396. [2019-10-13 23:16:20,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1396 states. [2019-10-13 23:16:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1520 transitions. [2019-10-13 23:16:20,975 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1520 transitions. Word has length 125 [2019-10-13 23:16:20,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:20,976 INFO L462 AbstractCegarLoop]: Abstraction has 1396 states and 1520 transitions. [2019-10-13 23:16:20,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:16:20,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1520 transitions. [2019-10-13 23:16:20,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:16:20,980 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:20,981 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:16:21,187 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:21,188 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:21,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:21,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1289354772, now seen corresponding path program 1 times [2019-10-13 23:16:21,189 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:21,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768193141] [2019-10-13 23:16:21,189 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:21,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:21,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:16:21,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768193141] [2019-10-13 23:16:21,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449813108] [2019-10-13 23:16:21,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:21,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 23:16:21,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:16:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:16:21,691 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:16:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 23:16:22,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:16:22,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 11] total 24 [2019-10-13 23:16:22,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772897632] [2019-10-13 23:16:22,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:16:22,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:22,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:16:22,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:16:22,302 INFO L87 Difference]: Start difference. First operand 1396 states and 1520 transitions. Second operand 11 states. [2019-10-13 23:16:22,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:22,936 INFO L93 Difference]: Finished difference Result 2837 states and 3212 transitions. [2019-10-13 23:16:22,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:16:22,937 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2019-10-13 23:16:22,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:22,938 INFO L225 Difference]: With dead ends: 2837 [2019-10-13 23:16:22,938 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 23:16:22,948 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2019-10-13 23:16:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 23:16:22,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 23:16:22,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 23:16:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 23:16:22,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2019-10-13 23:16:22,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:22,950 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 23:16:22,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:16:22,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 23:16:22,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 23:16:23,156 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:16:23,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 23:16:24,607 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-13 23:16:24,725 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 19 [2019-10-13 23:16:24,865 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2019-10-13 23:16:25,082 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2019-10-13 23:16:25,383 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2019-10-13 23:16:25,611 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2019-10-13 23:16:26,170 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2019-10-13 23:16:26,404 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2019-10-13 23:16:26,720 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 34 [2019-10-13 23:16:26,868 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 23 [2019-10-13 23:16:26,986 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 15 [2019-10-13 23:16:27,321 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2019-10-13 23:16:27,551 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-10-13 23:16:27,795 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-13 23:16:28,434 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point L668(lines 668 672) no Hoare annotation was computed. [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point L662-2(lines 662 683) no Hoare annotation was computed. [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point L684(lines 661 685) no Hoare annotation was computed. [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 637 692) no Hoare annotation was computed. [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 637 692) no Hoare annotation was computed. [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point L738-1(line 738) no Hoare annotation was computed. [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 693 752) no Hoare annotation was computed. [2019-10-13 23:16:28,580 INFO L443 ceAbstractionStarter]: For program point L725(lines 725 729) no Hoare annotation was computed. [2019-10-13 23:16:28,581 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 693 752) no Hoare annotation was computed. [2019-10-13 23:16:28,581 INFO L443 ceAbstractionStarter]: For program point L719-2(lines 719 744) no Hoare annotation was computed. [2019-10-13 23:16:28,581 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 693 752) no Hoare annotation was computed. [2019-10-13 23:16:28,581 INFO L443 ceAbstractionStarter]: For program point L745(lines 718 746) no Hoare annotation was computed. [2019-10-13 23:16:28,581 INFO L443 ceAbstractionStarter]: For program point L738(line 738) no Hoare annotation was computed. [2019-10-13 23:16:28,581 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 559 565) the Hoare annotation is: true [2019-10-13 23:16:28,581 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 559 565) no Hoare annotation was computed. [2019-10-13 23:16:28,582 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 566 574) no Hoare annotation was computed. [2019-10-13 23:16:28,582 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 566 574) the Hoare annotation is: true [2019-10-13 23:16:28,582 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 255 277) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,582 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 255 277) no Hoare annotation was computed. [2019-10-13 23:16:28,582 INFO L439 ceAbstractionStarter]: At program point L267(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,583 INFO L439 ceAbstractionStarter]: At program point L267-1(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,583 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 272) no Hoare annotation was computed. [2019-10-13 23:16:28,583 INFO L443 ceAbstractionStarter]: For program point L265-1(lines 265 272) no Hoare annotation was computed. [2019-10-13 23:16:28,583 INFO L443 ceAbstractionStarter]: For program point L263(line 263) no Hoare annotation was computed. [2019-10-13 23:16:28,583 INFO L439 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,583 INFO L439 ceAbstractionStarter]: At program point L261(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,584 INFO L439 ceAbstractionStarter]: At program point L261-1(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,584 INFO L443 ceAbstractionStarter]: For program point L225(line 225) no Hoare annotation was computed. [2019-10-13 23:16:28,584 INFO L443 ceAbstractionStarter]: For program point L224(line 224) no Hoare annotation was computed. [2019-10-13 23:16:28,584 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 210 233) no Hoare annotation was computed. [2019-10-13 23:16:28,584 INFO L443 ceAbstractionStarter]: For program point L223(line 223) no Hoare annotation was computed. [2019-10-13 23:16:28,584 INFO L443 ceAbstractionStarter]: For program point L222(line 222) no Hoare annotation was computed. [2019-10-13 23:16:28,584 INFO L443 ceAbstractionStarter]: For program point L221(line 221) no Hoare annotation was computed. [2019-10-13 23:16:28,584 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 210 233) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point L220(line 220) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 210 233) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point L219(line 219) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point L218(line 218) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point L217(line 217) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point L216(line 216) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point L215(line 215) no Hoare annotation was computed. [2019-10-13 23:16:28,585 INFO L443 ceAbstractionStarter]: For program point L228(line 228) no Hoare annotation was computed. [2019-10-13 23:16:28,586 INFO L443 ceAbstractionStarter]: For program point L227(line 227) no Hoare annotation was computed. [2019-10-13 23:16:28,586 INFO L443 ceAbstractionStarter]: For program point L226(line 226) no Hoare annotation was computed. [2019-10-13 23:16:28,586 INFO L443 ceAbstractionStarter]: For program point L322-1(line 322) no Hoare annotation was computed. [2019-10-13 23:16:28,586 INFO L443 ceAbstractionStarter]: For program point L320(lines 320 337) no Hoare annotation was computed. [2019-10-13 23:16:28,586 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 316 340) 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))) [2019-10-13 23:16:28,586 INFO L439 ceAbstractionStarter]: At program point L335(line 335) 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))) [2019-10-13 23:16:28,586 INFO L443 ceAbstractionStarter]: For program point L335-1(lines 316 340) no Hoare annotation was computed. [2019-10-13 23:16:28,587 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 316 340) no Hoare annotation was computed. [2019-10-13 23:16:28,587 INFO L439 ceAbstractionStarter]: At program point L330(line 330) 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))) [2019-10-13 23:16:28,587 INFO L439 ceAbstractionStarter]: At program point L326(line 326) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (and (or (not (= ~waterLevel~0 2)) (= processEnvironment__wrappee__methaneQuery_~tmp~2 1)) (= ~pumpRunning~0 0))) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-13 23:16:28,587 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 332) no Hoare annotation was computed. [2019-10-13 23:16:28,587 INFO L439 ceAbstractionStarter]: At program point L322(line 322) 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))) [2019-10-13 23:16:28,588 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 411 419) no Hoare annotation was computed. [2019-10-13 23:16:28,588 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 411 419) the Hoare annotation is: true [2019-10-13 23:16:28,588 INFO L443 ceAbstractionStarter]: For program point L450-1(line 450) no Hoare annotation was computed. [2019-10-13 23:16:28,588 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 420 455) no Hoare annotation was computed. [2019-10-13 23:16:28,588 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 420 455) no Hoare annotation was computed. [2019-10-13 23:16:28,588 INFO L443 ceAbstractionStarter]: For program point L450(line 450) no Hoare annotation was computed. [2019-10-13 23:16:28,588 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 552 558) no Hoare annotation was computed. [2019-10-13 23:16:28,588 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 552 558) the Hoare annotation is: true [2019-10-13 23:16:28,589 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 591 636) no Hoare annotation was computed. [2019-10-13 23:16:28,589 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 591 636) no Hoare annotation was computed. [2019-10-13 23:16:28,589 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 904 949) no Hoare annotation was computed. [2019-10-13 23:16:28,589 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 904 949) no Hoare annotation was computed. [2019-10-13 23:16:28,589 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 242 251) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,589 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 242 251) no Hoare annotation was computed. [2019-10-13 23:16:28,589 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 242 251) no Hoare annotation was computed. [2019-10-13 23:16:28,590 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 400 410) the Hoare annotation is: true [2019-10-13 23:16:28,590 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 400 410) no Hoare annotation was computed. [2019-10-13 23:16:28,590 INFO L446 ceAbstractionStarter]: At program point L405(line 405) the Hoare annotation is: true [2019-10-13 23:16:28,590 INFO L443 ceAbstractionStarter]: For program point L405-1(line 405) no Hoare annotation was computed. [2019-10-13 23:16:28,590 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 392 399) the Hoare annotation is: (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-13 23:16:28,590 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 392 399) no Hoare annotation was computed. [2019-10-13 23:16:28,590 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 162 175) no Hoare annotation was computed. [2019-10-13 23:16:28,590 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 162 175) the Hoare annotation is: true [2019-10-13 23:16:28,591 INFO L439 ceAbstractionStarter]: At program point L352(line 352) 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))) [2019-10-13 23:16:28,591 INFO L443 ceAbstractionStarter]: For program point L350(lines 350 358) no Hoare annotation was computed. [2019-10-13 23:16:28,591 INFO L439 ceAbstractionStarter]: At program point L348(line 348) 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))) [2019-10-13 23:16:28,591 INFO L443 ceAbstractionStarter]: For program point L348-1(line 348) no Hoare annotation was computed. [2019-10-13 23:16:28,591 INFO L443 ceAbstractionStarter]: For program point L346(lines 346 363) no Hoare annotation was computed. [2019-10-13 23:16:28,591 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 342 366) no Hoare annotation was computed. [2019-10-13 23:16:28,591 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 342 366) 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))) [2019-10-13 23:16:28,592 INFO L439 ceAbstractionStarter]: At program point L361(line 361) 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))) [2019-10-13 23:16:28,592 INFO L443 ceAbstractionStarter]: For program point L361-1(lines 342 366) no Hoare annotation was computed. [2019-10-13 23:16:28,592 INFO L439 ceAbstractionStarter]: At program point L356(line 356) 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))) [2019-10-13 23:16:28,592 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 308 314) no Hoare annotation was computed. [2019-10-13 23:16:28,592 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 308 314) the Hoare annotation is: true [2019-10-13 23:16:28,592 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 476 539) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,593 INFO L439 ceAbstractionStarter]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (= 1 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 1)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse4) (and (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse1 .cse4) .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse3 (and (= 0 ~methaneLevelCritical~0) .cse1)) .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 23:16:28,593 INFO L443 ceAbstractionStarter]: For program point L506(lines 506 512) no Hoare annotation was computed. [2019-10-13 23:16:28,593 INFO L443 ceAbstractionStarter]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2019-10-13 23:16:28,593 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 476 539) no Hoare annotation was computed. [2019-10-13 23:16:28,593 INFO L439 ceAbstractionStarter]: At program point L498(line 498) the Hoare annotation is: (let ((.cse4 (= 0 test_~splverifierCounter~0))) (let ((.cse0 (and (= 1 ~systemActive~0) .cse4 (= ~pumpRunning~0 0))) (.cse3 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse2 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 .cse4 .cse2 .cse5) (and .cse1 .cse4 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))))) [2019-10-13 23:16:28,593 INFO L439 ceAbstractionStarter]: At program point L529(lines 486 531) the Hoare annotation is: (let ((.cse4 (= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 0))) (or (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (not (= ~waterLevel~0 2)) .cse4 .cse1 .cse2 .cse5) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-13 23:16:28,594 INFO L443 ceAbstractionStarter]: For program point L496(lines 496 502) no Hoare annotation was computed. [2019-10-13 23:16:28,594 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 496 502) no Hoare annotation was computed. [2019-10-13 23:16:28,594 INFO L439 ceAbstractionStarter]: At program point L532(lines 485 533) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-13 23:16:28,594 INFO L439 ceAbstractionStarter]: At program point L522-2(lines 516 527) the Hoare annotation is: (let ((.cse6 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse4 (or .cse6 (= 1 ~methaneLevelCritical~0))) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3)) (.cse3 (= ~pumpRunning~0 0))) (or (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse5) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) .cse6 (and .cse4 .cse1 .cse2 .cse3)))) [2019-10-13 23:16:28,594 INFO L443 ceAbstractionStarter]: For program point L487(lines 486 531) no Hoare annotation was computed. [2019-10-13 23:16:28,594 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 476 539) no Hoare annotation was computed. [2019-10-13 23:16:28,594 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 858 903) no Hoare annotation was computed. [2019-10-13 23:16:28,595 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 858 903) no Hoare annotation was computed. [2019-10-13 23:16:28,595 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 367 374) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-13 23:16:28,595 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 367 374) no Hoare annotation was computed. [2019-10-13 23:16:28,595 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 130 152) no Hoare annotation was computed. [2019-10-13 23:16:28,595 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 130 152) no Hoare annotation was computed. [2019-10-13 23:16:28,595 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 542 551) no Hoare annotation was computed. [2019-10-13 23:16:28,595 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 542 551) no Hoare annotation was computed. [2019-10-13 23:16:28,595 INFO L443 ceAbstractionStarter]: For program point L801(lines 801 842) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 755 857) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point L820(line 820) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point L820-1(line 820) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point L779(lines 779 783) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 755 857) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point L804-2(lines 804 824) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point L825(lines 803 826) no Hoare annotation was computed. [2019-10-13 23:16:28,596 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 755 857) no Hoare annotation was computed. [2019-10-13 23:16:28,597 INFO L443 ceAbstractionStarter]: For program point L784(lines 784 800) no Hoare annotation was computed. [2019-10-13 23:16:28,597 INFO L443 ceAbstractionStarter]: For program point L805(lines 804 824) no Hoare annotation was computed. [2019-10-13 23:16:28,597 INFO L443 ceAbstractionStarter]: For program point L836(line 836) no Hoare annotation was computed. [2019-10-13 23:16:28,597 INFO L443 ceAbstractionStarter]: For program point L836-1(line 836) no Hoare annotation was computed. [2019-10-13 23:16:28,597 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)|)) [2019-10-13 23:16:28,597 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:16:28,597 INFO L443 ceAbstractionStarter]: For program point L386-1(lines 375 391) no Hoare annotation was computed. [2019-10-13 23:16:28,597 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 388) no Hoare annotation was computed. [2019-10-13 23:16:28,598 INFO L439 ceAbstractionStarter]: At program point L380(line 380) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-13 23:16:28,598 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 375 391) no Hoare annotation was computed. [2019-10-13 23:16:28,598 INFO L443 ceAbstractionStarter]: For program point L380-1(line 380) no Hoare annotation was computed. [2019-10-13 23:16:28,598 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 375 391) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-13 23:16:28,598 INFO L439 ceAbstractionStarter]: At program point L386(line 386) 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 (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 activatePump_~tmp~4)) .cse1 .cse2))) [2019-10-13 23:16:28,598 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 153 161) the Hoare annotation is: true [2019-10-13 23:16:28,598 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 153 161) no Hoare annotation was computed. [2019-10-13 23:16:28,599 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 456 474) no Hoare annotation was computed. [2019-10-13 23:16:28,599 INFO L446 ceAbstractionStarter]: At program point L463(line 463) the Hoare annotation is: true [2019-10-13 23:16:28,599 INFO L443 ceAbstractionStarter]: For program point L463-1(line 463) no Hoare annotation was computed. [2019-10-13 23:16:28,599 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 456 474) the Hoare annotation is: true [2019-10-13 23:16:28,599 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 109 120) 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))))))) [2019-10-13 23:16:28,599 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 109 120) no Hoare annotation was computed. [2019-10-13 23:16:28,599 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:16:28,599 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 23:16:28,600 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 121 129) the Hoare annotation is: true [2019-10-13 23:16:28,600 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 121 129) no Hoare annotation was computed. [2019-10-13 23:16:28,600 INFO L443 ceAbstractionStarter]: For program point L288(lines 287 306) no Hoare annotation was computed. [2019-10-13 23:16:28,600 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 284 307) 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))))) [2019-10-13 23:16:28,600 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 284 307) no Hoare annotation was computed. [2019-10-13 23:16:28,601 INFO L439 ceAbstractionStarter]: At program point L297(line 297) 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))))) [2019-10-13 23:16:28,601 INFO L439 ceAbstractionStarter]: At program point L295(lines 295 301) the Hoare annotation is: (let ((.cse6 (< ~waterLevel~0 2)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (= ~pumpRunning~0 1)) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (or (not (< |old(~waterLevel~0)| 2)) .cse0 .cse3 .cse6) (or .cse0 (= 1 ~waterLevel~0) .cse3 (not (= |old(~waterLevel~0)| 1))) (or (and .cse7 .cse6) (and .cse5 .cse6) (or .cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse3))) (or .cse0 (and .cse4 .cse7) .cse2 .cse3 (not .cse1) (and (not (= ~waterLevel~0 2)) .cse4 .cse5)))) [2019-10-13 23:16:28,601 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 284 307) no Hoare annotation was computed. [2019-10-13 23:16:28,601 INFO L439 ceAbstractionStarter]: At program point L290(line 290) 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))))) [2019-10-13 23:16:28,601 INFO L443 ceAbstractionStarter]: For program point L193(lines 193 197) no Hoare annotation was computed. [2019-10-13 23:16:28,601 INFO L446 ceAbstractionStarter]: At program point L193-1(lines 193 197) the Hoare annotation is: true [2019-10-13 23:16:28,602 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 179 208) no Hoare annotation was computed. [2019-10-13 23:16:28,602 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 179 208) the Hoare annotation is: true [2019-10-13 23:16:28,602 INFO L446 ceAbstractionStarter]: At program point L189-2(lines 189 203) the Hoare annotation is: true [2019-10-13 23:16:28,602 INFO L446 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: true [2019-10-13 23:16:28,602 INFO L443 ceAbstractionStarter]: For program point L185-1(line 185) no Hoare annotation was computed. [2019-10-13 23:16:28,602 INFO L446 ceAbstractionStarter]: At program point L204(lines 179 208) the Hoare annotation is: true [2019-10-13 23:16:28,602 INFO L443 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2019-10-13 23:16:28,602 INFO L443 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2019-10-13 23:16:28,603 INFO L439 ceAbstractionStarter]: At program point L61(line 61) 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))) [2019-10-13 23:16:28,603 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 44 76) no Hoare annotation was computed. [2019-10-13 23:16:28,603 INFO L443 ceAbstractionStarter]: For program point L61-1(line 61) no Hoare annotation was computed. [2019-10-13 23:16:28,603 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 72) no Hoare annotation was computed. [2019-10-13 23:16:28,603 INFO L443 ceAbstractionStarter]: For program point L59-1(lines 44 76) no Hoare annotation was computed. [2019-10-13 23:16:28,603 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 44 76) the Hoare annotation is: true [2019-10-13 23:16:28,603 INFO L439 ceAbstractionStarter]: At program point L57(line 57) 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))) [2019-10-13 23:16:28,604 INFO L443 ceAbstractionStarter]: For program point L57-1(line 57) no Hoare annotation was computed. [2019-10-13 23:16:28,604 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 73) no Hoare annotation was computed. [2019-10-13 23:16:28,604 INFO L446 ceAbstractionStarter]: At program point L51(line 51) the Hoare annotation is: true [2019-10-13 23:16:28,604 INFO L443 ceAbstractionStarter]: For program point L51-1(line 51) no Hoare annotation was computed. [2019-10-13 23:16:28,604 INFO L439 ceAbstractionStarter]: At program point L67(line 67) 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))) [2019-10-13 23:16:28,604 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 85 96) the Hoare annotation is: (or (< ~waterLevel~0 3) (or (not (= ~systemActive~0 1)) (not (< |old(~waterLevel~0)| 3)) (not (= 1 ~pumpRunning~0)))) [2019-10-13 23:16:28,604 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 85 96) no Hoare annotation was computed. [2019-10-13 23:16:28,605 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 234 240) no Hoare annotation was computed. [2019-10-13 23:16:28,605 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 234 240) the Hoare annotation is: true [2019-10-13 23:16:28,605 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:16:28,605 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-10-13 23:16:28,605 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 23:16:28,605 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 23:16:28,605 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 97 108) no Hoare annotation was computed. [2019-10-13 23:16:28,605 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 97 108) 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))) [2019-10-13 23:16:28,606 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 576 583) the Hoare annotation is: true [2019-10-13 23:16:28,606 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2019-10-13 23:16:28,606 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 576 583) no Hoare annotation was computed. [2019-10-13 23:16:28,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:16:28 BoogieIcfgContainer [2019-10-13 23:16:28,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 23:16:28,624 INFO L168 Benchmark]: Toolchain (without parser) took 19140.10 ms. Allocated memory was 145.8 MB in the beginning and 462.9 MB in the end (delta: 317.2 MB). Free memory was 100.6 MB in the beginning and 124.9 MB in the end (delta: -24.3 MB). Peak memory consumption was 329.7 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:28,625 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 23:16:28,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.35 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 168.3 MB in the end (delta: -67.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:28,627 INFO L168 Benchmark]: Boogie Preprocessor took 88.13 ms. Allocated memory is still 203.4 MB. Free memory was 168.3 MB in the beginning and 164.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:28,628 INFO L168 Benchmark]: RCFGBuilder took 1603.70 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 164.4 MB in the beginning and 143.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:28,629 INFO L168 Benchmark]: TraceAbstraction took 16675.55 ms. Allocated memory was 234.9 MB in the beginning and 462.9 MB in the end (delta: 228.1 MB). Free memory was 143.3 MB in the beginning and 124.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 283.3 MB. Max. memory is 7.1 GB. [2019-10-13 23:16:28,632 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.35 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 168.3 MB in the end (delta: -67.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.13 ms. Allocated memory is still 203.4 MB. Free memory was 168.3 MB in the beginning and 164.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1603.70 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 164.4 MB in the beginning and 143.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16675.55 ms. Allocated memory was 234.9 MB in the beginning and 462.9 MB in the end (delta: 228.1 MB). Free memory was 143.3 MB in the beginning and 124.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 283.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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: 485]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 1) || (((1 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || !(0 == \old(pumpRunning))) || ((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || (((0 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || (((1 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 186 locations, 1 error locations. Result: SAFE, OverallTime: 16.5s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, HoareTripleCheckerStatistics: 1576 SDtfs, 1333 SDslu, 5395 SDs, 0 SdLazy, 2685 SolverSat, 694 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 850 GetRequests, 707 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1396occurred 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: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 242 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 2950 PreInvPairs, 3078 NumberOfFragments, 1543 HoareAnnotationTreeSize, 2950 FomulaSimplifications, 6646 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 62 FomulaSimplificationsInter, 18827 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1217 NumberOfCodeBlocks, 1217 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1543 ConstructedInterpolants, 0 QuantifiedInterpolants, 289742 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2445 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 222/241 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...