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 -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 06:06:21,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 06:06:21,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 06:06:21,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 06:06:21,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 06:06:21,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 06:06:21,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 06:06:21,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 06:06:21,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 06:06:21,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 06:06:21,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 06:06:21,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 06:06:21,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 06:06:21,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 06:06:21,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 06:06:21,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 06:06:21,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 06:06:21,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 06:06:21,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 06:06:21,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 06:06:21,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 06:06:21,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 06:06:21,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 06:06:21,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 06:06:21,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 06:06:21,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 06:06:21,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 06:06:21,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 06:06:21,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 06:06:21,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 06:06:21,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 06:06:21,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 06:06:21,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 06:06:21,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 06:06:21,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 06:06:21,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 06:06:21,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 06:06:21,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 06:06:21,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 06:06:21,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 06:06:21,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 06:06:21,493 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 [2019-09-08 06:06:21,518 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 06:06:21,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 06:06:21,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 06:06:21,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 06:06:21,521 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 06:06:21,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 06:06:21,521 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 06:06:21,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 06:06:21,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 06:06:21,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 06:06:21,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 06:06:21,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 06:06:21,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 06:06:21,524 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 06:06:21,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 06:06:21,524 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 06:06:21,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 06:06:21,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 06:06:21,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 06:06:21,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 06:06:21,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 06:06:21,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:06:21,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 06:06:21,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 06:06:21,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 06:06:21,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 06:06:21,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 06:06:21,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 06:06:21,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 06:06:21,562 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 06:06:21,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 06:06:21,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 06:06:21,580 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 06:06:21,581 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 06:06:21,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2019-09-08 06:06:21,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1e0e526/6aaf75daf2d2433bafbc747a36a30086/FLAGd837e7525 [2019-09-08 06:06:22,237 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 06:06:22,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2019-09-08 06:06:22,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1e0e526/6aaf75daf2d2433bafbc747a36a30086/FLAGd837e7525 [2019-09-08 06:06:22,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1e0e526/6aaf75daf2d2433bafbc747a36a30086 [2019-09-08 06:06:22,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 06:06:22,511 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 06:06:22,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 06:06:22,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 06:06:22,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 06:06:22,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:06:22" (1/1) ... [2019-09-08 06:06:22,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e53858e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:22, skipping insertion in model container [2019-09-08 06:06:22,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:06:22" (1/1) ... [2019-09-08 06:06:22,528 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 06:06:22,579 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 06:06:23,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:06:23,117 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 06:06:23,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:06:23,274 INFO L192 MainTranslator]: Completed translation [2019-09-08 06:06:23,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23 WrapperNode [2019-09-08 06:06:23,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 06:06:23,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 06:06:23,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 06:06:23,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 06:06:23,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (1/1) ... [2019-09-08 06:06:23,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (1/1) ... [2019-09-08 06:06:23,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (1/1) ... [2019-09-08 06:06:23,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (1/1) ... [2019-09-08 06:06:23,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (1/1) ... [2019-09-08 06:06:23,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (1/1) ... [2019-09-08 06:06:23,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (1/1) ... [2019-09-08 06:06:23,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 06:06:23,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 06:06:23,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 06:06:23,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 06:06:23,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (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 [2019-09-08 06:06:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 06:06:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 06:06:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 06:06:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-08 06:06:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-08 06:06:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-08 06:06:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-08 06:06:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-08 06:06:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-08 06:06:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-08 06:06:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-08 06:06:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-08 06:06:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-08 06:06:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-08 06:06:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 06:06:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-08 06:06:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 06:06:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 06:06:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 06:06:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 06:06:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 06:06:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 06:06:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 06:06:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-08 06:06:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-08 06:06:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-08 06:06:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-08 06:06:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-08 06:06:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-08 06:06:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-08 06:06:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-08 06:06:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-08 06:06:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-08 06:06:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-08 06:06:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-08 06:06:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 06:06:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 06:06:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 06:06:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 06:06:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 06:06:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 06:06:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 06:06:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 06:06:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 06:06:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 06:06:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-08 06:06:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-08 06:06:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-08 06:06:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-08 06:06:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-08 06:06:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-08 06:06:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-08 06:06:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-08 06:06:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-08 06:06:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-08 06:06:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 06:06:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-08 06:06:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-08 06:06:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-08 06:06:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-08 06:06:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 06:06:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 06:06:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-08 06:06:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 06:06:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 06:06:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 06:06:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 06:06:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 06:06:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-08 06:06:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-08 06:06:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-08 06:06:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-08 06:06:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-08 06:06:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-08 06:06:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-08 06:06:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-08 06:06:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-08 06:06:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 06:06:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 06:06:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 06:06:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 06:06:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 06:06:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 06:06:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 06:06:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 06:06:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 06:06:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 06:06:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 06:06:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 06:06:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 06:06:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 06:06:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 06:06:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 06:06:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 06:06:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 06:06:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 06:06:24,540 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 06:06:24,541 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-08 06:06:24,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:06:24 BoogieIcfgContainer [2019-09-08 06:06:24,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 06:06:24,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 06:06:24,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 06:06:24,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 06:06:24,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:06:22" (1/3) ... [2019-09-08 06:06:24,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbdd8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:06:24, skipping insertion in model container [2019-09-08 06:06:24,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:23" (2/3) ... [2019-09-08 06:06:24,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbdd8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:06:24, skipping insertion in model container [2019-09-08 06:06:24,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:06:24" (3/3) ... [2019-09-08 06:06:24,552 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2019-09-08 06:06:24,563 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 06:06:24,573 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 06:06:24,592 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 06:06:24,625 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 06:06:24,626 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 06:06:24,626 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 06:06:24,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 06:06:24,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 06:06:24,627 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 06:06:24,627 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 06:06:24,627 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 06:06:24,627 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 06:06:24,651 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2019-09-08 06:06:24,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 06:06:24,660 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:24,662 INFO L399 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] [2019-09-08 06:06:24,664 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:24,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:24,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1040081704, now seen corresponding path program 1 times [2019-09-08 06:06:24,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:24,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:24,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:24,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:24,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:25,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:25,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 06:06:25,049 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 06:06:25,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 06:06:25,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 06:06:25,071 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 2 states. [2019-09-08 06:06:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:25,122 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2019-09-08 06:06:25,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 06:06:25,124 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-08 06:06:25,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:25,139 INFO L225 Difference]: With dead ends: 264 [2019-09-08 06:06:25,140 INFO L226 Difference]: Without dead ends: 132 [2019-09-08 06:06:25,144 INFO L628 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 [2019-09-08 06:06:25,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-09-08 06:06:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-09-08 06:06:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-09-08 06:06:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-09-08 06:06:25,211 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2019-09-08 06:06:25,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:25,212 INFO L475 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-09-08 06:06:25,212 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 06:06:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-09-08 06:06:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-08 06:06:25,216 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:25,216 INFO L399 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] [2019-09-08 06:06:25,217 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:25,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:25,217 INFO L82 PathProgramCache]: Analyzing trace with hash -849158610, now seen corresponding path program 1 times [2019-09-08 06:06:25,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:25,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:25,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:25,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:25,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:25,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:25,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:06:25,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:06:25,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:06:25,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:06:25,384 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2019-09-08 06:06:25,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:25,411 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2019-09-08 06:06:25,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:06:25,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-08 06:06:25,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:25,414 INFO L225 Difference]: With dead ends: 209 [2019-09-08 06:06:25,414 INFO L226 Difference]: Without dead ends: 123 [2019-09-08 06:06:25,416 INFO L628 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 [2019-09-08 06:06:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-08 06:06:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-08 06:06:25,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-08 06:06:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2019-09-08 06:06:25,431 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2019-09-08 06:06:25,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:25,431 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2019-09-08 06:06:25,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:06:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2019-09-08 06:06:25,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 06:06:25,434 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:25,434 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:25,434 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:25,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:25,435 INFO L82 PathProgramCache]: Analyzing trace with hash 846018297, now seen corresponding path program 1 times [2019-09-08 06:06:25,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:25,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:25,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:25,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:25,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:25,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:25,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 06:06:25,599 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 06:06:25,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 06:06:25,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:25,600 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2019-09-08 06:06:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:25,918 INFO L93 Difference]: Finished difference Result 222 states and 261 transitions. [2019-09-08 06:06:25,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:06:25,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-08 06:06:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:25,921 INFO L225 Difference]: With dead ends: 222 [2019-09-08 06:06:25,921 INFO L226 Difference]: Without dead ends: 123 [2019-09-08 06:06:25,923 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-08 06:06:25,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-08 06:06:25,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-08 06:06:25,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-08 06:06:25,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2019-09-08 06:06:25,943 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2019-09-08 06:06:25,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:25,943 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2019-09-08 06:06:25,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 06:06:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2019-09-08 06:06:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 06:06:25,947 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:25,947 INFO L399 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] [2019-09-08 06:06:25,948 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:25,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:25,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1478840967, now seen corresponding path program 1 times [2019-09-08 06:06:25,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:25,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:25,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:25,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:25,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:26,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:26,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:06:26,109 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:06:26,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:06:26,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:06:26,110 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 5 states. [2019-09-08 06:06:26,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:26,630 INFO L93 Difference]: Finished difference Result 321 states and 385 transitions. [2019-09-08 06:06:26,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 06:06:26,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-08 06:06:26,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:26,633 INFO L225 Difference]: With dead ends: 321 [2019-09-08 06:06:26,634 INFO L226 Difference]: Without dead ends: 222 [2019-09-08 06:06:26,635 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:26,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-09-08 06:06:26,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2019-09-08 06:06:26,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-09-08 06:06:26,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2019-09-08 06:06:26,661 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2019-09-08 06:06:26,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:26,662 INFO L475 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2019-09-08 06:06:26,662 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:06:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2019-09-08 06:06:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-08 06:06:26,665 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:26,666 INFO L399 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] [2019-09-08 06:06:26,666 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:26,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:26,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1284194314, now seen corresponding path program 1 times [2019-09-08 06:06:26,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:26,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:26,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:26,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:26,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:26,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:26,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:06:26,778 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:06:26,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:06:26,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:06:26,779 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 6 states. [2019-09-08 06:06:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:26,991 INFO L93 Difference]: Finished difference Result 546 states and 640 transitions. [2019-09-08 06:06:26,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:06:26,991 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-08 06:06:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:26,996 INFO L225 Difference]: With dead ends: 546 [2019-09-08 06:06:26,996 INFO L226 Difference]: Without dead ends: 367 [2019-09-08 06:06:26,997 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-08 06:06:26,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2019-09-08 06:06:27,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 361. [2019-09-08 06:06:27,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-09-08 06:06:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 410 transitions. [2019-09-08 06:06:27,036 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 410 transitions. Word has length 79 [2019-09-08 06:06:27,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:27,036 INFO L475 AbstractCegarLoop]: Abstraction has 361 states and 410 transitions. [2019-09-08 06:06:27,036 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:06:27,037 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 410 transitions. [2019-09-08 06:06:27,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-08 06:06:27,039 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:27,039 INFO L399 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] [2019-09-08 06:06:27,040 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:27,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:27,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1377771002, now seen corresponding path program 1 times [2019-09-08 06:06:27,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:27,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:27,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:27,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:27,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:27,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:27,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 06:06:27,211 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 06:06:27,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 06:06:27,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:27,211 INFO L87 Difference]: Start difference. First operand 361 states and 410 transitions. Second operand 7 states. [2019-09-08 06:06:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:27,807 INFO L93 Difference]: Finished difference Result 396 states and 464 transitions. [2019-09-08 06:06:27,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 06:06:27,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-09-08 06:06:27,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:27,811 INFO L225 Difference]: With dead ends: 396 [2019-09-08 06:06:27,811 INFO L226 Difference]: Without dead ends: 393 [2019-09-08 06:06:27,812 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-08 06:06:27,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-09-08 06:06:27,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 361. [2019-09-08 06:06:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-09-08 06:06:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2019-09-08 06:06:27,841 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 83 [2019-09-08 06:06:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:27,842 INFO L475 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2019-09-08 06:06:27,842 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 06:06:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2019-09-08 06:06:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-08 06:06:27,844 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:27,844 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:27,844 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:27,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:27,845 INFO L82 PathProgramCache]: Analyzing trace with hash 453090503, now seen corresponding path program 1 times [2019-09-08 06:06:27,845 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:27,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:27,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:27,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:27,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:27,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:27,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:27,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:06:27,932 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:06:27,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:06:27,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:06:27,933 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 6 states. [2019-09-08 06:06:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:27,975 INFO L93 Difference]: Finished difference Result 708 states and 814 transitions. [2019-09-08 06:06:27,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:06:27,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-08 06:06:27,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:27,979 INFO L225 Difference]: With dead ends: 708 [2019-09-08 06:06:27,979 INFO L226 Difference]: Without dead ends: 371 [2019-09-08 06:06:27,980 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-09-08 06:06:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2019-09-08 06:06:28,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-09-08 06:06:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 419 transitions. [2019-09-08 06:06:28,004 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 419 transitions. Word has length 84 [2019-09-08 06:06:28,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:28,005 INFO L475 AbstractCegarLoop]: Abstraction has 371 states and 419 transitions. [2019-09-08 06:06:28,005 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:06:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 419 transitions. [2019-09-08 06:06:28,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-08 06:06:28,007 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:28,007 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:28,007 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:28,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:28,008 INFO L82 PathProgramCache]: Analyzing trace with hash 475722757, now seen corresponding path program 1 times [2019-09-08 06:06:28,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:28,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:28,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:28,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:28,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:28,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:28,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 06:06:28,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:06:28,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:06:28,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:28,131 INFO L87 Difference]: Start difference. First operand 371 states and 419 transitions. Second operand 8 states. [2019-09-08 06:06:28,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:28,176 INFO L93 Difference]: Finished difference Result 732 states and 848 transitions. [2019-09-08 06:06:28,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:06:28,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-09-08 06:06:28,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:28,180 INFO L225 Difference]: With dead ends: 732 [2019-09-08 06:06:28,180 INFO L226 Difference]: Without dead ends: 385 [2019-09-08 06:06:28,182 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:28,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-09-08 06:06:28,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 379. [2019-09-08 06:06:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-09-08 06:06:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 427 transitions. [2019-09-08 06:06:28,205 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 427 transitions. Word has length 84 [2019-09-08 06:06:28,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:28,205 INFO L475 AbstractCegarLoop]: Abstraction has 379 states and 427 transitions. [2019-09-08 06:06:28,205 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:06:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 427 transitions. [2019-09-08 06:06:28,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-08 06:06:28,209 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:28,210 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:28,210 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:28,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:28,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1501214756, now seen corresponding path program 1 times [2019-09-08 06:06:28,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:28,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:28,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:28,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:28,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:28,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:28,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 06:06:28,310 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 06:06:28,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 06:06:28,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 06:06:28,311 INFO L87 Difference]: Start difference. First operand 379 states and 427 transitions. Second operand 4 states. [2019-09-08 06:06:28,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:28,538 INFO L93 Difference]: Finished difference Result 1153 states and 1368 transitions. [2019-09-08 06:06:28,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 06:06:28,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-09-08 06:06:28,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:28,544 INFO L225 Difference]: With dead ends: 1153 [2019-09-08 06:06:28,545 INFO L226 Difference]: Without dead ends: 798 [2019-09-08 06:06:28,546 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 06:06:28,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2019-09-08 06:06:28,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 511. [2019-09-08 06:06:28,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2019-09-08 06:06:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 572 transitions. [2019-09-08 06:06:28,587 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 572 transitions. Word has length 84 [2019-09-08 06:06:28,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:28,587 INFO L475 AbstractCegarLoop]: Abstraction has 511 states and 572 transitions. [2019-09-08 06:06:28,587 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 06:06:28,587 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 572 transitions. [2019-09-08 06:06:28,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-08 06:06:28,589 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:28,590 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:28,590 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:28,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1300385726, now seen corresponding path program 1 times [2019-09-08 06:06:28,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:28,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:28,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:28,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:28,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:06:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:06:29,599 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 06:06:29,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:06:29 BoogieIcfgContainer [2019-09-08 06:06:29,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 06:06:29,782 INFO L168 Benchmark]: Toolchain (without parser) took 7269.21 ms. Allocated memory was 141.6 MB in the beginning and 311.4 MB in the end (delta: 169.9 MB). Free memory was 86.9 MB in the beginning and 195.0 MB in the end (delta: -108.1 MB). Peak memory consumption was 177.2 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:29,783 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-08 06:06:29,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.31 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 86.6 MB in the beginning and 166.7 MB in the end (delta: -80.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:29,785 INFO L168 Benchmark]: Boogie Preprocessor took 119.38 ms. Allocated memory is still 201.3 MB. Free memory was 166.7 MB in the beginning and 162.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:29,786 INFO L168 Benchmark]: RCFGBuilder took 1146.79 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 162.6 MB in the beginning and 195.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:29,787 INFO L168 Benchmark]: TraceAbstraction took 5235.32 ms. Allocated memory was 229.1 MB in the beginning and 311.4 MB in the end (delta: 82.3 MB). Free memory was 195.6 MB in the beginning and 195.0 MB in the end (delta: 611.0 kB). Peak memory consumption was 198.3 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:29,791 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.31 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 86.6 MB in the beginning and 166.7 MB in the end (delta: -80.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.38 ms. Allocated memory is still 201.3 MB. Free memory was 166.7 MB in the beginning and 162.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1146.79 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 162.6 MB in the beginning and 195.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5235.32 ms. Allocated memory was 229.1 MB in the beginning and 311.4 MB in the end (delta: 82.3 MB). Free memory was 195.6 MB in the beginning and 195.0 MB in the end (delta: 611.0 kB). Peak memory consumption was 198.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L258] int retValue_acc ; [L259] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L263] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L264] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L265] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L265] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L269] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L270] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L249] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L327] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L329] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L335] tmp = __VERIFIER_nondet_int() [L337] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, waterLevel=1] [L339] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE waterLevel < 2 [L95] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L339] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, waterLevel=2] [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, tmp___0=1, waterLevel=2] [L349] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L349] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, tmp___0=1, waterLevel=2] [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___2)) [L363] tmp___1 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L372] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L402] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L409] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L411] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L457] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L475] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L156] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L560] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L436] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L440] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L440] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L475] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L411] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L417] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L388] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 239 locations, 1 error locations. UNSAFE Result, 5.1s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1394 SDtfs, 786 SDslu, 2896 SDs, 0 SdLazy, 1001 SolverSat, 226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 350 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 76469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...