java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:22:08,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:22:08,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:22:08,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:22:08,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:22:08,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:22:08,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:22:08,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:22:08,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:22:08,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:22:08,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:22:08,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:22:08,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:22:08,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:22:08,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:22:08,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:22:08,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:22:08,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:22:08,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:22:08,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:22:08,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:22:08,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:22:08,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:22:08,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:22:08,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:22:08,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:22:08,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:22:08,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:22:08,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:22:08,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:22:08,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:22:08,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:22:08,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:22:08,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:22:08,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:22:08,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:22:08,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:22:08,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:22:08,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:22:08,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:22:08,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:22:08,270 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:22:08,298 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:22:08,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:22:08,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:22:08,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:22:08,302 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:22:08,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:22:08,303 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:22:08,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:22:08,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:22:08,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:22:08,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:22:08,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:22:08,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:22:08,305 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:22:08,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:22:08,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:22:08,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:22:08,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:22:08,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:22:08,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:22:08,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:22:08,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:22:08,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:22:08,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:22:08,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:22:08,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:22:08,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:22:08,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:22:08,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:22:08,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:22:08,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:22:08,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:22:08,640 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:22:08,640 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:22:08,641 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-13 21:22:08,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7724565d/bfde444ae0d341a998e35571814a4293/FLAG003e525c9 [2019-10-13 21:22:09,282 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:22:09,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-13 21:22:09,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7724565d/bfde444ae0d341a998e35571814a4293/FLAG003e525c9 [2019-10-13 21:22:09,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7724565d/bfde444ae0d341a998e35571814a4293 [2019-10-13 21:22:09,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:22:09,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:22:09,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:09,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:22:09,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:22:09,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:09" (1/1) ... [2019-10-13 21:22:09,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d46bbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:09, skipping insertion in model container [2019-10-13 21:22:09,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:09" (1/1) ... [2019-10-13 21:22:09,563 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:22:09,611 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:22:10,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:10,068 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:22:10,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:10,243 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:22:10,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10 WrapperNode [2019-10-13 21:22:10,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:10,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:22:10,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:22:10,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:22:10,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (1/1) ... [2019-10-13 21:22:10,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (1/1) ... [2019-10-13 21:22:10,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (1/1) ... [2019-10-13 21:22:10,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (1/1) ... [2019-10-13 21:22:10,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (1/1) ... [2019-10-13 21:22:10,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (1/1) ... [2019-10-13 21:22:10,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (1/1) ... [2019-10-13 21:22:10,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:22:10,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:22:10,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:22:10,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:22:10,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (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 21:22:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:22:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:22:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:22:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:22:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:22:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:22:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:22:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:22:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:22:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:22:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:22:10,420 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:22:10,420 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:22:10,420 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:22:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:22:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:22:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:22:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:22:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:22:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:22:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:22:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:22:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:22:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 21:22:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:22:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:22:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:22:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:22:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:22:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:22:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:22:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:22:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:22:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:22:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:22:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:22:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:22:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:22:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:22:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:22:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:22:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:22:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:22:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:22:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:22:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:22:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:22:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:22:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:22:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:22:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 21:22:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:22:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:22:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:22:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:22:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:22:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:22:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:22:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:22:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:22:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:22:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:22:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:22:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:22:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:22:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:22:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:22:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:22:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:22:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:22:10,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:22:10,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:10,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:22:10,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:10,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:22:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:22:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:22:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:22:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:22:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:22:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:22:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:22:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:22:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:22:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:22:11,743 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:22:11,744 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:22:11,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:11 BoogieIcfgContainer [2019-10-13 21:22:11,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:22:11,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:22:11,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:22:11,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:22:11,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:22:09" (1/3) ... [2019-10-13 21:22:11,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2226880a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:11, skipping insertion in model container [2019-10-13 21:22:11,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:10" (2/3) ... [2019-10-13 21:22:11,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2226880a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:11, skipping insertion in model container [2019-10-13 21:22:11,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:11" (3/3) ... [2019-10-13 21:22:11,756 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2019-10-13 21:22:11,767 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:22:11,778 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:22:11,790 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:22:11,834 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:22:11,834 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:22:11,834 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:22:11,835 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:22:11,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:22:11,835 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:22:11,836 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:22:11,836 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:22:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-10-13 21:22:11,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 21:22:11,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:11,874 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] [2019-10-13 21:22:11,876 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:11,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:11,883 INFO L82 PathProgramCache]: Analyzing trace with hash -389891839, now seen corresponding path program 1 times [2019-10-13 21:22:11,893 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:11,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395359760] [2019-10-13 21:22:11,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:11,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:11,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:12,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:12,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395359760] [2019-10-13 21:22:12,246 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:12,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:22:12,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014288130] [2019-10-13 21:22:12,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:22:12,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:12,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:22:12,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:12,271 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-10-13 21:22:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:12,319 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2019-10-13 21:22:12,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:22:12,321 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 21:22:12,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:12,336 INFO L225 Difference]: With dead ends: 306 [2019-10-13 21:22:12,336 INFO L226 Difference]: Without dead ends: 153 [2019-10-13 21:22:12,342 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:12,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-13 21:22:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-10-13 21:22:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-13 21:22:12,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2019-10-13 21:22:12,412 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 46 [2019-10-13 21:22:12,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:12,413 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2019-10-13 21:22:12,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:22:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2019-10-13 21:22:12,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 21:22:12,417 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:12,418 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 21:22:12,418 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:12,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:12,419 INFO L82 PathProgramCache]: Analyzing trace with hash 999791911, now seen corresponding path program 1 times [2019-10-13 21:22:12,419 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:12,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192787530] [2019-10-13 21:22:12,420 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:12,420 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:12,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:12,560 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192787530] [2019-10-13 21:22:12,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:12,561 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:22:12,561 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866839222] [2019-10-13 21:22:12,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:22:12,565 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:12,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:22:12,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:22:12,566 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2019-10-13 21:22:12,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:12,627 INFO L93 Difference]: Finished difference Result 255 states and 301 transitions. [2019-10-13 21:22:12,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:22:12,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 21:22:12,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:12,633 INFO L225 Difference]: With dead ends: 255 [2019-10-13 21:22:12,634 INFO L226 Difference]: Without dead ends: 144 [2019-10-13 21:22:12,640 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:22:12,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-13 21:22:12,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-13 21:22:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-13 21:22:12,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2019-10-13 21:22:12,663 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 47 [2019-10-13 21:22:12,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:12,664 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2019-10-13 21:22:12,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:22:12,664 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2019-10-13 21:22:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 21:22:12,666 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:12,667 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:12,667 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:12,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:12,667 INFO L82 PathProgramCache]: Analyzing trace with hash -314490359, now seen corresponding path program 1 times [2019-10-13 21:22:12,668 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:12,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178821388] [2019-10-13 21:22:12,668 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:12,668 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:12,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:12,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:12,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178821388] [2019-10-13 21:22:12,807 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:12,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:22:12,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464578138] [2019-10-13 21:22:12,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:22:12,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:12,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:22:12,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:12,809 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2019-10-13 21:22:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:13,223 INFO L93 Difference]: Finished difference Result 264 states and 315 transitions. [2019-10-13 21:22:13,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:22:13,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-13 21:22:13,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:13,227 INFO L225 Difference]: With dead ends: 264 [2019-10-13 21:22:13,227 INFO L226 Difference]: Without dead ends: 144 [2019-10-13 21:22:13,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:22:13,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-13 21:22:13,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-13 21:22:13,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-13 21:22:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-13 21:22:13,261 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 51 [2019-10-13 21:22:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:13,262 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-13 21:22:13,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:22:13,262 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-13 21:22:13,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-13 21:22:13,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:13,265 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:13,266 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:13,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:13,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1957039538, now seen corresponding path program 1 times [2019-10-13 21:22:13,266 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:13,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614470741] [2019-10-13 21:22:13,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:13,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:13,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:13,472 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614470741] [2019-10-13 21:22:13,473 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:13,473 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:22:13,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905359815] [2019-10-13 21:22:13,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:22:13,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:13,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:22:13,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:22:13,475 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2019-10-13 21:22:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:14,221 INFO L93 Difference]: Finished difference Result 376 states and 452 transitions. [2019-10-13 21:22:14,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:22:14,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-13 21:22:14,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:14,229 INFO L225 Difference]: With dead ends: 376 [2019-10-13 21:22:14,229 INFO L226 Difference]: Without dead ends: 256 [2019-10-13 21:22:14,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:22:14,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-10-13 21:22:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2019-10-13 21:22:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-10-13 21:22:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 268 transitions. [2019-10-13 21:22:14,271 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 268 transitions. Word has length 69 [2019-10-13 21:22:14,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:14,272 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 268 transitions. [2019-10-13 21:22:14,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:22:14,272 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 268 transitions. [2019-10-13 21:22:14,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 21:22:14,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:14,275 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:14,276 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:14,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:14,276 INFO L82 PathProgramCache]: Analyzing trace with hash 868877799, now seen corresponding path program 1 times [2019-10-13 21:22:14,276 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:14,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087553930] [2019-10-13 21:22:14,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:14,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:14,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:14,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087553930] [2019-10-13 21:22:14,439 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:14,439 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:22:14,440 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370630487] [2019-10-13 21:22:14,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:22:14,440 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:14,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:22:14,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:22:14,441 INFO L87 Difference]: Start difference. First operand 238 states and 268 transitions. Second operand 10 states. [2019-10-13 21:22:15,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:15,063 INFO L93 Difference]: Finished difference Result 771 states and 939 transitions. [2019-10-13 21:22:15,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 21:22:15,064 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-10-13 21:22:15,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:15,071 INFO L225 Difference]: With dead ends: 771 [2019-10-13 21:22:15,071 INFO L226 Difference]: Without dead ends: 557 [2019-10-13 21:22:15,073 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:22:15,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-13 21:22:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2019-10-13 21:22:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-10-13 21:22:15,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 636 transitions. [2019-10-13 21:22:15,148 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 636 transitions. Word has length 83 [2019-10-13 21:22:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:15,149 INFO L462 AbstractCegarLoop]: Abstraction has 547 states and 636 transitions. [2019-10-13 21:22:15,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:22:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 636 transitions. [2019-10-13 21:22:15,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 21:22:15,162 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:15,162 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:15,163 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:15,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:15,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1619741770, now seen corresponding path program 1 times [2019-10-13 21:22:15,163 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:15,164 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87908264] [2019-10-13 21:22:15,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:15,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:15,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:22:15,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87908264] [2019-10-13 21:22:15,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356140491] [2019-10-13 21:22:15,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:15,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-13 21:22:15,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:15,819 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:16,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:22:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 21:22:16,326 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:22:16,326 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 16 [2019-10-13 21:22:16,326 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81373786] [2019-10-13 21:22:16,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:22:16,328 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:16,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:22:16,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:22:16,328 INFO L87 Difference]: Start difference. First operand 547 states and 636 transitions. Second operand 8 states. [2019-10-13 21:22:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:17,749 INFO L93 Difference]: Finished difference Result 1389 states and 1780 transitions. [2019-10-13 21:22:17,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:22:17,749 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2019-10-13 21:22:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:17,757 INFO L225 Difference]: With dead ends: 1389 [2019-10-13 21:22:17,758 INFO L226 Difference]: Without dead ends: 986 [2019-10-13 21:22:17,760 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:22:17,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2019-10-13 21:22:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 912. [2019-10-13 21:22:17,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2019-10-13 21:22:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1107 transitions. [2019-10-13 21:22:17,831 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1107 transitions. Word has length 162 [2019-10-13 21:22:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:17,832 INFO L462 AbstractCegarLoop]: Abstraction has 912 states and 1107 transitions. [2019-10-13 21:22:17,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:22:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1107 transitions. [2019-10-13 21:22:17,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 21:22:17,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:17,836 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:18,051 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:18,052 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:18,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:18,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1510920712, now seen corresponding path program 1 times [2019-10-13 21:22:18,052 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:18,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025124222] [2019-10-13 21:22:18,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:18,053 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:18,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 21:22:18,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025124222] [2019-10-13 21:22:18,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781861844] [2019-10-13 21:22:18,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:18,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 21:22:18,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:22:18,430 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 21:22:18,722 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:22:18,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2019-10-13 21:22:18,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745986294] [2019-10-13 21:22:18,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:22:18,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:18,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:22:18,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:22:18,725 INFO L87 Difference]: Start difference. First operand 912 states and 1107 transitions. Second operand 6 states. [2019-10-13 21:22:18,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:18,789 INFO L93 Difference]: Finished difference Result 1828 states and 2310 transitions. [2019-10-13 21:22:18,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:22:18,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2019-10-13 21:22:18,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:18,796 INFO L225 Difference]: With dead ends: 1828 [2019-10-13 21:22:18,797 INFO L226 Difference]: Without dead ends: 940 [2019-10-13 21:22:18,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2019-10-13 21:22:18,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 932. [2019-10-13 21:22:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2019-10-13 21:22:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1131 transitions. [2019-10-13 21:22:18,866 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1131 transitions. Word has length 146 [2019-10-13 21:22:18,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:18,866 INFO L462 AbstractCegarLoop]: Abstraction has 932 states and 1131 transitions. [2019-10-13 21:22:18,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:22:18,867 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1131 transitions. [2019-10-13 21:22:18,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 21:22:18,871 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:18,871 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:19,076 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:19,077 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:19,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:19,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1165071670, now seen corresponding path program 1 times [2019-10-13 21:22:19,078 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:19,078 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163364269] [2019-10-13 21:22:19,079 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:19,079 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:19,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 21:22:19,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163364269] [2019-10-13 21:22:19,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090397897] [2019-10-13 21:22:19,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:19,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:22:19,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:22:19,488 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 21:22:19,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:22:19,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2019-10-13 21:22:19,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057137012] [2019-10-13 21:22:19,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:22:19,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:19,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:22:19,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:22:19,796 INFO L87 Difference]: Start difference. First operand 932 states and 1131 transitions. Second operand 5 states. [2019-10-13 21:22:19,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:19,856 INFO L93 Difference]: Finished difference Result 1658 states and 2062 transitions. [2019-10-13 21:22:19,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:22:19,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-10-13 21:22:19,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:19,862 INFO L225 Difference]: With dead ends: 1658 [2019-10-13 21:22:19,863 INFO L226 Difference]: Without dead ends: 750 [2019-10-13 21:22:19,867 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 289 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:22:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2019-10-13 21:22:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2019-10-13 21:22:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2019-10-13 21:22:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 901 transitions. [2019-10-13 21:22:19,926 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 901 transitions. Word has length 146 [2019-10-13 21:22:19,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:19,926 INFO L462 AbstractCegarLoop]: Abstraction has 750 states and 901 transitions. [2019-10-13 21:22:19,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:22:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 901 transitions. [2019-10-13 21:22:19,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 21:22:19,929 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:19,929 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:20,171 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:20,172 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:20,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:20,172 INFO L82 PathProgramCache]: Analyzing trace with hash 667358703, now seen corresponding path program 1 times [2019-10-13 21:22:20,173 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:20,173 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407999465] [2019-10-13 21:22:20,173 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:20,173 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:20,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 21:22:20,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407999465] [2019-10-13 21:22:20,300 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:20,300 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:22:20,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850661469] [2019-10-13 21:22:20,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:22:20,301 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:20,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:22:20,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:22:20,302 INFO L87 Difference]: Start difference. First operand 750 states and 901 transitions. Second operand 9 states. [2019-10-13 21:22:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:21,174 INFO L93 Difference]: Finished difference Result 2009 states and 2473 transitions. [2019-10-13 21:22:21,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:22:21,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2019-10-13 21:22:21,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:21,183 INFO L225 Difference]: With dead ends: 2009 [2019-10-13 21:22:21,183 INFO L226 Difference]: Without dead ends: 1283 [2019-10-13 21:22:21,187 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:22:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2019-10-13 21:22:21,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1280. [2019-10-13 21:22:21,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2019-10-13 21:22:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1524 transitions. [2019-10-13 21:22:21,258 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1524 transitions. Word has length 150 [2019-10-13 21:22:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:21,259 INFO L462 AbstractCegarLoop]: Abstraction has 1280 states and 1524 transitions. [2019-10-13 21:22:21,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:22:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1524 transitions. [2019-10-13 21:22:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 21:22:21,264 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:21,264 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:21,264 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:21,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1954732917, now seen corresponding path program 1 times [2019-10-13 21:22:21,265 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:21,265 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599546436] [2019-10-13 21:22:21,265 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:21,266 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:21,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 21:22:21,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599546436] [2019-10-13 21:22:21,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072015504] [2019-10-13 21:22:21,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:21,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:22:21,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:22:21,832 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 21:22:23,615 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:22:23,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-13 21:22:23,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780264862] [2019-10-13 21:22:23,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:22:23,616 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:23,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:22:23,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:22:23,618 INFO L87 Difference]: Start difference. First operand 1280 states and 1524 transitions. Second operand 8 states. [2019-10-13 21:22:24,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:24,108 INFO L93 Difference]: Finished difference Result 2373 states and 2855 transitions. [2019-10-13 21:22:24,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:22:24,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 154 [2019-10-13 21:22:24,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:24,118 INFO L225 Difference]: With dead ends: 2373 [2019-10-13 21:22:24,119 INFO L226 Difference]: Without dead ends: 1245 [2019-10-13 21:22:24,123 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 289 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:22:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2019-10-13 21:22:24,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1242. [2019-10-13 21:22:24,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2019-10-13 21:22:24,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1472 transitions. [2019-10-13 21:22:24,193 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1472 transitions. Word has length 154 [2019-10-13 21:22:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:24,194 INFO L462 AbstractCegarLoop]: Abstraction has 1242 states and 1472 transitions. [2019-10-13 21:22:24,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:22:24,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1472 transitions. [2019-10-13 21:22:24,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 21:22:24,197 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:24,197 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:24,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:24,404 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:24,405 INFO L82 PathProgramCache]: Analyzing trace with hash 392365267, now seen corresponding path program 2 times [2019-10-13 21:22:24,406 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:24,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342495781] [2019-10-13 21:22:24,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:24,407 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:24,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-13 21:22:24,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342495781] [2019-10-13 21:22:24,483 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:24,483 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:22:24,483 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161031000] [2019-10-13 21:22:24,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:22:24,484 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:24,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:22:24,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:22:24,484 INFO L87 Difference]: Start difference. First operand 1242 states and 1472 transitions. Second operand 6 states. [2019-10-13 21:22:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:24,693 INFO L93 Difference]: Finished difference Result 1267 states and 1501 transitions. [2019-10-13 21:22:24,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:22:24,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2019-10-13 21:22:24,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:24,702 INFO L225 Difference]: With dead ends: 1267 [2019-10-13 21:22:24,703 INFO L226 Difference]: Without dead ends: 1264 [2019-10-13 21:22:24,704 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:22:24,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2019-10-13 21:22:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1242. [2019-10-13 21:22:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2019-10-13 21:22:24,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1464 transitions. [2019-10-13 21:22:24,825 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1464 transitions. Word has length 154 [2019-10-13 21:22:24,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:24,827 INFO L462 AbstractCegarLoop]: Abstraction has 1242 states and 1464 transitions. [2019-10-13 21:22:24,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:22:24,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1464 transitions. [2019-10-13 21:22:24,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 21:22:24,831 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:24,832 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:24,832 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:24,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:24,832 INFO L82 PathProgramCache]: Analyzing trace with hash 656308020, now seen corresponding path program 1 times [2019-10-13 21:22:24,833 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:24,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391717290] [2019-10-13 21:22:24,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:24,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:24,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 21:22:25,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391717290] [2019-10-13 21:22:25,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984167511] [2019-10-13 21:22:25,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:25,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 21:22:25,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:25,374 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 21:22:25,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1269326809] [2019-10-13 21:22:25,750 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 173 [2019-10-13 21:22:25,792 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:22:25,793 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:22:25,861 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:22:25,863 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-13 21:22:25,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:25,868 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:22:25,926 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:22:25,926 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:22:25,930 INFO L553 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2019-10-13 21:22:25,930 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:22:25,931 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:22:25,933 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 9, 9] total 17 [2019-10-13 21:22:25,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710833429] [2019-10-13 21:22:25,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:22:25,935 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:25,935 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:22:25,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:22:25,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:25,936 INFO L87 Difference]: Start difference. First operand 1242 states and 1464 transitions. Second operand 2 states. [2019-10-13 21:22:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:25,951 INFO L93 Difference]: Finished difference Result 1242 states and 1464 transitions. [2019-10-13 21:22:25,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:22:25,951 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-10-13 21:22:25,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:25,952 INFO L225 Difference]: With dead ends: 1242 [2019-10-13 21:22:25,952 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:22:25,955 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:22:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:22:25,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:22:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:22:25,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2019-10-13 21:22:25,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:25,956 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:22:25,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:22:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:22:25,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:22:26,163 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:26,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:22:26,665 INFO L443 ceAbstractionStarter]: For program point L635(lines 612 636) no Hoare annotation was computed. [2019-10-13 21:22:26,665 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 588 643) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point L619(lines 619 623) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point L619-1(lines 619 623) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 588 643) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point L614(line 614) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point L613-2(lines 613 634) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 588 643) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point L671(line 671) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point L670-2(lines 670 695) no Hoare annotation was computed. [2019-10-13 21:22:26,666 INFO L443 ceAbstractionStarter]: For program point L696(lines 669 697) no Hoare annotation was computed. [2019-10-13 21:22:26,667 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 644 703) no Hoare annotation was computed. [2019-10-13 21:22:26,667 INFO L443 ceAbstractionStarter]: For program point L689(line 689) no Hoare annotation was computed. [2019-10-13 21:22:26,667 INFO L443 ceAbstractionStarter]: For program point L689-1(line 689) no Hoare annotation was computed. [2019-10-13 21:22:26,667 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 644 703) no Hoare annotation was computed. [2019-10-13 21:22:26,667 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 644 703) no Hoare annotation was computed. [2019-10-13 21:22:26,667 INFO L443 ceAbstractionStarter]: For program point L676(lines 676 680) no Hoare annotation was computed. [2019-10-13 21:22:26,667 INFO L443 ceAbstractionStarter]: For program point L676-1(lines 676 680) no Hoare annotation was computed. [2019-10-13 21:22:26,668 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2019-10-13 21:22:26,668 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2019-10-13 21:22:26,668 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2019-10-13 21:22:26,668 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2019-10-13 21:22:26,668 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2019-10-13 21:22:26,668 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 510 534) the Hoare annotation is: true [2019-10-13 21:22:26,668 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 510 534) no Hoare annotation was computed. [2019-10-13 21:22:26,669 INFO L446 ceAbstractionStarter]: At program point L524(line 524) the Hoare annotation is: true [2019-10-13 21:22:26,669 INFO L443 ceAbstractionStarter]: For program point L522(lines 522 528) no Hoare annotation was computed. [2019-10-13 21:22:26,669 INFO L446 ceAbstractionStarter]: At program point L520(line 520) the Hoare annotation is: true [2019-10-13 21:22:26,669 INFO L443 ceAbstractionStarter]: For program point L520-1(line 520) no Hoare annotation was computed. [2019-10-13 21:22:26,669 INFO L443 ceAbstractionStarter]: For program point L518(lines 518 531) no Hoare annotation was computed. [2019-10-13 21:22:26,669 INFO L443 ceAbstractionStarter]: For program point L518-1(lines 510 534) no Hoare annotation was computed. [2019-10-13 21:22:26,669 INFO L446 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2019-10-13 21:22:26,669 INFO L443 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2019-10-13 21:22:26,670 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 974 996) the Hoare annotation is: true [2019-10-13 21:22:26,670 INFO L446 ceAbstractionStarter]: At program point L986(line 986) the Hoare annotation is: true [2019-10-13 21:22:26,670 INFO L446 ceAbstractionStarter]: At program point L986-1(line 986) the Hoare annotation is: true [2019-10-13 21:22:26,670 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 974 996) no Hoare annotation was computed. [2019-10-13 21:22:26,670 INFO L443 ceAbstractionStarter]: For program point L984(lines 984 991) no Hoare annotation was computed. [2019-10-13 21:22:26,670 INFO L443 ceAbstractionStarter]: For program point L984-1(lines 984 991) no Hoare annotation was computed. [2019-10-13 21:22:26,670 INFO L443 ceAbstractionStarter]: For program point L982(line 982) no Hoare annotation was computed. [2019-10-13 21:22:26,670 INFO L446 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: true [2019-10-13 21:22:26,671 INFO L446 ceAbstractionStarter]: At program point L980(line 980) the Hoare annotation is: true [2019-10-13 21:22:26,671 INFO L446 ceAbstractionStarter]: At program point L980-1(line 980) the Hoare annotation is: true [2019-10-13 21:22:26,671 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 974 996) no Hoare annotation was computed. [2019-10-13 21:22:26,671 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 933 956) no Hoare annotation was computed. [2019-10-13 21:22:26,671 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 933 956) no Hoare annotation was computed. [2019-10-13 21:22:26,671 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 933 956) no Hoare annotation was computed. [2019-10-13 21:22:26,671 INFO L443 ceAbstractionStarter]: For program point L951(line 951) no Hoare annotation was computed. [2019-10-13 21:22:26,671 INFO L443 ceAbstractionStarter]: For program point L950(line 950) no Hoare annotation was computed. [2019-10-13 21:22:26,671 INFO L443 ceAbstractionStarter]: For program point L949(line 949) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L948(line 948) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L947(line 947) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L946(line 946) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L945(line 945) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L944(line 944) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L943(line 943) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L942(line 942) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L941(line 941) no Hoare annotation was computed. [2019-10-13 21:22:26,672 INFO L443 ceAbstractionStarter]: For program point L940(line 940) no Hoare annotation was computed. [2019-10-13 21:22:26,673 INFO L443 ceAbstractionStarter]: For program point L939(line 939) no Hoare annotation was computed. [2019-10-13 21:22:26,673 INFO L443 ceAbstractionStarter]: For program point L938(line 938) no Hoare annotation was computed. [2019-10-13 21:22:26,673 INFO L446 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: true [2019-10-13 21:22:26,673 INFO L443 ceAbstractionStarter]: For program point L178-1(lines 159 183) no Hoare annotation was computed. [2019-10-13 21:22:26,673 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 159 183) the Hoare annotation is: true [2019-10-13 21:22:26,673 INFO L446 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: true [2019-10-13 21:22:26,673 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 159 183) no Hoare annotation was computed. [2019-10-13 21:22:26,673 INFO L446 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: true [2019-10-13 21:22:26,673 INFO L443 ceAbstractionStarter]: For program point L167(lines 167 175) no Hoare annotation was computed. [2019-10-13 21:22:26,674 INFO L446 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: true [2019-10-13 21:22:26,674 INFO L443 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2019-10-13 21:22:26,674 INFO L443 ceAbstractionStarter]: For program point L163(lines 163 180) no Hoare annotation was computed. [2019-10-13 21:22:26,674 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 254 262) no Hoare annotation was computed. [2019-10-13 21:22:26,674 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 254 262) the Hoare annotation is: true [2019-10-13 21:22:26,674 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 254 262) no Hoare annotation was computed. [2019-10-13 21:22:26,674 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 318 336) the Hoare annotation is: true [2019-10-13 21:22:26,674 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 331) no Hoare annotation was computed. [2019-10-13 21:22:26,675 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 318 336) no Hoare annotation was computed. [2019-10-13 21:22:26,675 INFO L446 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: true [2019-10-13 21:22:26,675 INFO L443 ceAbstractionStarter]: For program point L327-2(lines 327 331) no Hoare annotation was computed. [2019-10-13 21:22:26,675 INFO L443 ceAbstractionStarter]: For program point L325-1(line 325) no Hoare annotation was computed. [2019-10-13 21:22:26,675 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 318 336) no Hoare annotation was computed. [2019-10-13 21:22:26,675 INFO L443 ceAbstractionStarter]: For program point L282(lines 282 290) no Hoare annotation was computed. [2019-10-13 21:22:26,675 INFO L443 ceAbstractionStarter]: For program point L282-2(lines 282 290) no Hoare annotation was computed. [2019-10-13 21:22:26,675 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 263 298) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point L270(lines 270 278) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point L270-2(lines 270 278) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 263 298) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point L293(line 293) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point L293-1(line 293) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 263 298) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2019-10-13 21:22:26,676 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2019-10-13 21:22:26,676 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 542 587) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 542 587) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 542 587) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 855 900) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point L875(lines 875 882) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 855 900) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 855 900) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point L869(lines 869 889) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L443 ceAbstractionStarter]: For program point L869-1(lines 869 889) no Hoare annotation was computed. [2019-10-13 21:22:26,677 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 964 973) the Hoare annotation is: true [2019-10-13 21:22:26,678 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 964 973) no Hoare annotation was computed. [2019-10-13 21:22:26,678 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 964 973) no Hoare annotation was computed. [2019-10-13 21:22:26,678 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 243 253) the Hoare annotation is: true [2019-10-13 21:22:26,678 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 243 253) no Hoare annotation was computed. [2019-10-13 21:22:26,678 INFO L446 ceAbstractionStarter]: At program point L248(line 248) the Hoare annotation is: true [2019-10-13 21:22:26,678 INFO L443 ceAbstractionStarter]: For program point L248-1(line 248) no Hoare annotation was computed. [2019-10-13 21:22:26,678 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 243 253) no Hoare annotation was computed. [2019-10-13 21:22:26,678 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 235 242) the Hoare annotation is: true [2019-10-13 21:22:26,679 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 235 242) no Hoare annotation was computed. [2019-10-13 21:22:26,679 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 235 242) no Hoare annotation was computed. [2019-10-13 21:22:26,679 INFO L443 ceAbstractionStarter]: For program point L490(lines 490 496) no Hoare annotation was computed. [2019-10-13 21:22:26,679 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 486 499) no Hoare annotation was computed. [2019-10-13 21:22:26,679 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 486 499) the Hoare annotation is: true [2019-10-13 21:22:26,679 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 486 499) no Hoare annotation was computed. [2019-10-13 21:22:26,679 INFO L443 ceAbstractionStarter]: For program point L193(lines 193 201) no Hoare annotation was computed. [2019-10-13 21:22:26,679 INFO L446 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: true [2019-10-13 21:22:26,680 INFO L443 ceAbstractionStarter]: For program point L191-1(line 191) no Hoare annotation was computed. [2019-10-13 21:22:26,680 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 206) no Hoare annotation was computed. [2019-10-13 21:22:26,680 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 185 209) no Hoare annotation was computed. [2019-10-13 21:22:26,680 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 185 209) the Hoare annotation is: true [2019-10-13 21:22:26,680 INFO L446 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: true [2019-10-13 21:22:26,680 INFO L443 ceAbstractionStarter]: For program point L204-1(lines 185 209) no Hoare annotation was computed. [2019-10-13 21:22:26,680 INFO L446 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: true [2019-10-13 21:22:26,680 INFO L446 ceAbstractionStarter]: At program point L195(line 195) the Hoare annotation is: true [2019-10-13 21:22:26,681 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2019-10-13 21:22:26,681 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2019-10-13 21:22:26,681 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 357) no Hoare annotation was computed. [2019-10-13 21:22:26,681 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 341 404) the Hoare annotation is: true [2019-10-13 21:22:26,681 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 341 404) no Hoare annotation was computed. [2019-10-13 21:22:26,681 INFO L446 ceAbstractionStarter]: At program point L397(lines 350 398) the Hoare annotation is: true [2019-10-13 21:22:26,681 INFO L443 ceAbstractionStarter]: For program point L387(lines 387 391) no Hoare annotation was computed. [2019-10-13 21:22:26,681 INFO L446 ceAbstractionStarter]: At program point L387-2(lines 381 392) the Hoare annotation is: true [2019-10-13 21:22:26,681 INFO L443 ceAbstractionStarter]: For program point L352(lines 351 396) no Hoare annotation was computed. [2019-10-13 21:22:26,681 INFO L443 ceAbstractionStarter]: For program point L381(lines 381 392) no Hoare annotation was computed. [2019-10-13 21:22:26,682 INFO L446 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: true [2019-10-13 21:22:26,682 INFO L443 ceAbstractionStarter]: For program point L371(lines 371 377) no Hoare annotation was computed. [2019-10-13 21:22:26,682 INFO L443 ceAbstractionStarter]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2019-10-13 21:22:26,682 INFO L446 ceAbstractionStarter]: At program point L363(line 363) the Hoare annotation is: true [2019-10-13 21:22:26,682 INFO L446 ceAbstractionStarter]: At program point L394(lines 351 396) the Hoare annotation is: true [2019-10-13 21:22:26,682 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 367) no Hoare annotation was computed. [2019-10-13 21:22:26,682 INFO L443 ceAbstractionStarter]: For program point L361-1(lines 361 367) no Hoare annotation was computed. [2019-10-13 21:22:26,682 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 341 404) no Hoare annotation was computed. [2019-10-13 21:22:26,682 INFO L443 ceAbstractionStarter]: For program point L829(lines 829 836) no Hoare annotation was computed. [2019-10-13 21:22:26,683 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 809 854) no Hoare annotation was computed. [2019-10-13 21:22:26,683 INFO L443 ceAbstractionStarter]: For program point L823(lines 823 843) no Hoare annotation was computed. [2019-10-13 21:22:26,683 INFO L443 ceAbstractionStarter]: For program point L823-1(lines 823 843) no Hoare annotation was computed. [2019-10-13 21:22:26,683 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 809 854) no Hoare annotation was computed. [2019-10-13 21:22:26,683 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 809 854) no Hoare annotation was computed. [2019-10-13 21:22:26,683 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 210 217) the Hoare annotation is: true [2019-10-13 21:22:26,683 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 210 217) no Hoare annotation was computed. [2019-10-13 21:22:26,684 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 210 217) no Hoare annotation was computed. [2019-10-13 21:22:26,684 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 500 508) no Hoare annotation was computed. [2019-10-13 21:22:26,684 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 500 508) the Hoare annotation is: true [2019-10-13 21:22:26,684 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 500 508) no Hoare annotation was computed. [2019-10-13 21:22:26,684 INFO L443 ceAbstractionStarter]: For program point L462(lines 462 470) no Hoare annotation was computed. [2019-10-13 21:22:26,684 INFO L443 ceAbstractionStarter]: For program point L462-2(lines 462 470) no Hoare annotation was computed. [2019-10-13 21:22:26,684 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 454 476) no Hoare annotation was computed. [2019-10-13 21:22:26,684 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 454 476) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 454 476) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 53 62) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 53 62) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 53 62) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point L735(lines 735 751) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 706 808) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point L795(lines 795 802) no Hoare annotation was computed. [2019-10-13 21:22:26,685 INFO L443 ceAbstractionStarter]: For program point L756(lines 755 775) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L787(line 787) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L787-1(line 787) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L752(lines 752 793) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 706 808) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L771(line 771) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L771-1(line 771) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L730(lines 730 734) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L794(lines 794 805) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point L757(lines 757 761) no Hoare annotation was computed. [2019-10-13 21:22:26,686 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 706 808) no Hoare annotation was computed. [2019-10-13 21:22:26,687 INFO L443 ceAbstractionStarter]: For program point L755-2(lines 755 775) no Hoare annotation was computed. [2019-10-13 21:22:26,687 INFO L443 ceAbstractionStarter]: For program point L776(lines 754 777) no Hoare annotation was computed. [2019-10-13 21:22:26,687 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:22:26,687 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-13 21:22:26,687 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:22:26,687 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 231) no Hoare annotation was computed. [2019-10-13 21:22:26,687 INFO L446 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: true [2019-10-13 21:22:26,687 INFO L443 ceAbstractionStarter]: For program point L223-1(line 223) no Hoare annotation was computed. [2019-10-13 21:22:26,688 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 218 234) no Hoare annotation was computed. [2019-10-13 21:22:26,688 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 218 234) the Hoare annotation is: true [2019-10-13 21:22:26,688 INFO L446 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: true [2019-10-13 21:22:26,688 INFO L443 ceAbstractionStarter]: For program point L229-1(lines 218 234) no Hoare annotation was computed. [2019-10-13 21:22:26,688 INFO L443 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2019-10-13 21:22:26,688 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 299 317) no Hoare annotation was computed. [2019-10-13 21:22:26,688 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 299 317) the Hoare annotation is: true [2019-10-13 21:22:26,689 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 299 317) no Hoare annotation was computed. [2019-10-13 21:22:26,689 INFO L443 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2019-10-13 21:22:26,689 INFO L446 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2019-10-13 21:22:26,689 INFO L443 ceAbstractionStarter]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2019-10-13 21:22:26,689 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 477 485) the Hoare annotation is: true [2019-10-13 21:22:26,689 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 477 485) no Hoare annotation was computed. [2019-10-13 21:22:26,689 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 477 485) no Hoare annotation was computed. [2019-10-13 21:22:26,689 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 433 444) the Hoare annotation is: true [2019-10-13 21:22:26,689 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 433 444) no Hoare annotation was computed. [2019-10-13 21:22:26,690 INFO L443 ceAbstractionStarter]: For program point L437-1(lines 433 444) no Hoare annotation was computed. [2019-10-13 21:22:26,690 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:22:26,690 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:22:26,690 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:22:26,690 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 445 453) the Hoare annotation is: true [2019-10-13 21:22:26,690 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 445 453) no Hoare annotation was computed. [2019-10-13 21:22:26,690 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 445 453) no Hoare annotation was computed. [2019-10-13 21:22:26,690 INFO L446 ceAbstractionStarter]: At program point L114(line 114) the Hoare annotation is: true [2019-10-13 21:22:26,690 INFO L446 ceAbstractionStarter]: At program point L112(lines 112 118) the Hoare annotation is: true [2019-10-13 21:22:26,691 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 101 124) the Hoare annotation is: true [2019-10-13 21:22:26,691 INFO L446 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: true [2019-10-13 21:22:26,691 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2019-10-13 21:22:26,691 INFO L443 ceAbstractionStarter]: For program point L105(lines 104 123) no Hoare annotation was computed. [2019-10-13 21:22:26,691 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2019-10-13 21:22:26,691 INFO L446 ceAbstractionStarter]: At program point L928(lines 903 932) the Hoare annotation is: true [2019-10-13 21:22:26,691 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 903 932) no Hoare annotation was computed. [2019-10-13 21:22:26,691 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 903 932) the Hoare annotation is: true [2019-10-13 21:22:26,692 INFO L443 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2019-10-13 21:22:26,692 INFO L443 ceAbstractionStarter]: For program point L917(lines 917 921) no Hoare annotation was computed. [2019-10-13 21:22:26,692 INFO L446 ceAbstractionStarter]: At program point L917-1(lines 917 921) the Hoare annotation is: true [2019-10-13 21:22:26,692 INFO L443 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2019-10-13 21:22:26,692 INFO L446 ceAbstractionStarter]: At program point L913-2(lines 913 927) the Hoare annotation is: true [2019-10-13 21:22:26,692 INFO L446 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: true [2019-10-13 21:22:26,692 INFO L443 ceAbstractionStarter]: For program point L909-1(line 909) no Hoare annotation was computed. [2019-10-13 21:22:26,692 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 409 420) the Hoare annotation is: true [2019-10-13 21:22:26,692 INFO L443 ceAbstractionStarter]: For program point L413-1(lines 409 420) no Hoare annotation was computed. [2019-10-13 21:22:26,693 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 409 420) no Hoare annotation was computed. [2019-10-13 21:22:26,693 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 957 963) no Hoare annotation was computed. [2019-10-13 21:22:26,693 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 957 963) the Hoare annotation is: true [2019-10-13 21:22:26,693 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:22:26,693 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:22:26,693 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:22:26,693 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:22:26,693 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 133 157) the Hoare annotation is: true [2019-10-13 21:22:26,693 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 133 157) no Hoare annotation was computed. [2019-10-13 21:22:26,693 INFO L446 ceAbstractionStarter]: At program point L152(line 152) the Hoare annotation is: true [2019-10-13 21:22:26,694 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2019-10-13 21:22:26,694 INFO L446 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: true [2019-10-13 21:22:26,694 INFO L446 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: true [2019-10-13 21:22:26,694 INFO L443 ceAbstractionStarter]: For program point L141(lines 141 149) no Hoare annotation was computed. [2019-10-13 21:22:26,694 INFO L446 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: true [2019-10-13 21:22:26,694 INFO L443 ceAbstractionStarter]: For program point L139-1(line 139) no Hoare annotation was computed. [2019-10-13 21:22:26,694 INFO L443 ceAbstractionStarter]: For program point L137(lines 137 154) no Hoare annotation was computed. [2019-10-13 21:22:26,694 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 421 432) no Hoare annotation was computed. [2019-10-13 21:22:26,694 INFO L443 ceAbstractionStarter]: For program point L425-1(lines 421 432) no Hoare annotation was computed. [2019-10-13 21:22:26,695 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 421 432) the Hoare annotation is: true [2019-10-13 21:22:26,695 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2019-10-13 21:22:26,695 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-10-13 21:22:26,695 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-10-13 21:22:26,695 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-13 21:22:26,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:22:26 BoogieIcfgContainer [2019-10-13 21:22:26,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:22:26,707 INFO L168 Benchmark]: Toolchain (without parser) took 17157.14 ms. Allocated memory was 144.2 MB in the beginning and 497.5 MB in the end (delta: 353.4 MB). Free memory was 101.5 MB in the beginning and 347.3 MB in the end (delta: -245.8 MB). Peak memory consumption was 367.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:26,708 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 21:22:26,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.38 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 101.3 MB in the beginning and 170.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:26,710 INFO L168 Benchmark]: Boogie Preprocessor took 98.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 166.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:26,710 INFO L168 Benchmark]: RCFGBuilder took 1402.97 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 166.0 MB in the beginning and 194.8 MB in the end (delta: -28.8 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:26,711 INFO L168 Benchmark]: TraceAbstraction took 14957.26 ms. Allocated memory was 236.5 MB in the beginning and 497.5 MB in the end (delta: 261.1 MB). Free memory was 194.8 MB in the beginning and 347.3 MB in the end (delta: -152.5 MB). Peak memory consumption was 368.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:26,715 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 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.38 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 101.3 MB in the beginning and 170.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 166.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1402.97 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 166.0 MB in the beginning and 194.8 MB in the end (delta: -28.8 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14957.26 ms. Allocated memory was 236.5 MB in the beginning and 497.5 MB in the end (delta: 261.1 MB). Free memory was 194.8 MB in the beginning and 347.3 MB in the end (delta: -152.5 MB). Peak memory consumption was 368.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 903]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 252 locations, 1 error locations. Result: SAFE, OverallTime: 14.8s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 2230 SDtfs, 1822 SDslu, 6053 SDs, 0 SdLazy, 2944 SolverSat, 663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1518 GetRequests, 1389 SyntacticMatches, 17 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1280occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 138 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 2715 PreInvPairs, 2716 NumberOfFragments, 75 HoareAnnotationTreeSize, 2715 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 69 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 2160 NumberOfCodeBlocks, 2160 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2918 ConstructedInterpolants, 0 QuantifiedInterpolants, 633359 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4429 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 541/628 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 118, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8245614035087719, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...