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_spec4_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:06:32,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:06:32,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:06:32,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:06:32,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:06:32,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:06:32,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:06:32,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:06:32,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:06:32,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:06:32,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:06:32,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:06:32,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:06:32,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:06:32,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:06:32,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:06:32,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:06:32,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:06:32,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:06:32,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:06:32,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:06:32,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:06:32,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:06:32,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:06:32,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:06:32,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:06:32,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:06:32,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:06:32,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:06:32,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:06:32,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:06:32,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:06:32,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:06:32,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:06:32,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:06:32,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:06:32,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:06:32,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:06:32,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:06:32,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:06:32,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:06:32,700 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 [2019-09-20 13:06:32,714 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:06:32,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:06:32,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:06:32,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:06:32,716 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:06:32,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:06:32,717 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:06:32,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:06:32,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:06:32,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:06:32,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:06:32,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:06:32,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:06:32,718 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:06:32,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:06:32,718 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:06:32,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:06:32,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:06:32,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:06:32,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:06:32,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:06:32,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:06:32,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:06:32,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:06:32,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:06:32,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:06:32,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:06:32,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:06:32,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:06:32,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:06:32,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:06:32,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:06:32,767 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:06:32,767 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:06:32,768 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-09-20 13:06:32,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5312d5be/4f1bede71e9940bcb567a582bc972b86/FLAGf16712cc5 [2019-09-20 13:06:33,304 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:06:33,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-09-20 13:06:33,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5312d5be/4f1bede71e9940bcb567a582bc972b86/FLAGf16712cc5 [2019-09-20 13:06:33,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5312d5be/4f1bede71e9940bcb567a582bc972b86 [2019-09-20 13:06:33,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:06:33,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:06:33,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:06:33,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:06:33,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:06:33,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:06:33" (1/1) ... [2019-09-20 13:06:33,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e40aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:33, skipping insertion in model container [2019-09-20 13:06:33,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:06:33" (1/1) ... [2019-09-20 13:06:33,637 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:06:33,706 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:06:34,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:06:34,225 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:06:34,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:06:34,372 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:06:34,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34 WrapperNode [2019-09-20 13:06:34,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:06:34,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:06:34,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:06:34,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:06:34,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (1/1) ... [2019-09-20 13:06:34,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (1/1) ... [2019-09-20 13:06:34,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (1/1) ... [2019-09-20 13:06:34,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (1/1) ... [2019-09-20 13:06:34,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (1/1) ... [2019-09-20 13:06:34,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (1/1) ... [2019-09-20 13:06:34,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (1/1) ... [2019-09-20 13:06:34,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:06:34,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:06:34,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:06:34,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:06:34,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (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 [2019-09-20 13:06:34,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:06:34,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:06:34,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:06:34,568 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:06:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:06:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:06:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:06:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:06:34,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:06:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:06:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:06:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:06:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:06:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:06:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:06:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:06:34,576 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:06:34,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:06:34,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:06:34,577 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:06:34,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:06:34,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:06:34,578 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:06:34,578 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:06:34,578 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:06:34,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:06:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:06:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:06:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:06:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:06:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:06:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:06:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:06:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:06:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:06:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:06:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:06:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:06:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:06:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:06:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:06:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:06:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:06:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:06:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:06:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:06:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:06:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:06:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:06:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:06:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:06:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:06:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:06:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:06:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:06:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:06:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:06:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:06:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:06:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:06:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:06:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:06:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:06:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:06:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:06:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:06:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:06:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:06:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:06:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:06:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:06:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:06:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:06:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:06:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:06:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:06:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:06:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:06:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:06:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:06:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:06:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:06:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:06:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:06:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:06:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:06:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:06:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:06:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:06:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:06:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:06:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:06:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:06:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:06:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:06:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:06:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:06:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:06:35,693 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:06:35,693 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:06:35,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:06:35 BoogieIcfgContainer [2019-09-20 13:06:35,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:06:35,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:06:35,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:06:35,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:06:35,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:06:33" (1/3) ... [2019-09-20 13:06:35,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365612b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:06:35, skipping insertion in model container [2019-09-20 13:06:35,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:34" (2/3) ... [2019-09-20 13:06:35,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365612b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:06:35, skipping insertion in model container [2019-09-20 13:06:35,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:06:35" (3/3) ... [2019-09-20 13:06:35,706 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-09-20 13:06:35,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:06:35,728 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:06:35,746 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:06:35,807 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:06:35,808 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:06:35,808 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:06:35,808 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:06:35,809 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:06:35,809 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:06:35,809 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:06:35,809 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:06:35,810 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:06:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states. [2019-09-20 13:06:35,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:06:35,845 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:35,846 INFO L407 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] [2019-09-20 13:06:35,849 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:35,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:35,855 INFO L82 PathProgramCache]: Analyzing trace with hash -583894042, now seen corresponding path program 1 times [2019-09-20 13:06:35,857 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:35,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:35,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:35,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:35,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:06:36,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:06:36,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:06:36,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:06:36,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:06:36,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:06:36,254 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 2 states. [2019-09-20 13:06:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:36,304 INFO L93 Difference]: Finished difference Result 276 states and 341 transitions. [2019-09-20 13:06:36,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:06:36,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:06:36,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:36,319 INFO L225 Difference]: With dead ends: 276 [2019-09-20 13:06:36,320 INFO L226 Difference]: Without dead ends: 138 [2019-09-20 13:06:36,324 INFO L636 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 [2019-09-20 13:06:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-20 13:06:36,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-20 13:06:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-20 13:06:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2019-09-20 13:06:36,381 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 46 [2019-09-20 13:06:36,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:36,382 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2019-09-20 13:06:36,383 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:06:36,384 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2019-09-20 13:06:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:06:36,388 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:36,389 INFO L407 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] [2019-09-20 13:06:36,389 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:36,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:36,390 INFO L82 PathProgramCache]: Analyzing trace with hash 2008699999, now seen corresponding path program 1 times [2019-09-20 13:06:36,390 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:36,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:36,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:36,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:36,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:06:36,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:06:36,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:06:36,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:06:36,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:06:36,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:06:36,566 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2019-09-20 13:06:36,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:36,592 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2019-09-20 13:06:36,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:06:36,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:06:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:36,597 INFO L225 Difference]: With dead ends: 215 [2019-09-20 13:06:36,597 INFO L226 Difference]: Without dead ends: 129 [2019-09-20 13:06:36,599 INFO L636 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 [2019-09-20 13:06:36,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-20 13:06:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-20 13:06:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-20 13:06:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2019-09-20 13:06:36,616 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 47 [2019-09-20 13:06:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:36,617 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2019-09-20 13:06:36,617 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:06:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2019-09-20 13:06:36,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:06:36,620 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:36,620 INFO L407 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] [2019-09-20 13:06:36,620 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:36,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:36,620 INFO L82 PathProgramCache]: Analyzing trace with hash 940393630, now seen corresponding path program 1 times [2019-09-20 13:06:36,621 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:36,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:36,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:36,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:36,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:06:36,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:06:36,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:06:36,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:06:36,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:06:36,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:06:36,826 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 7 states. [2019-09-20 13:06:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:37,330 INFO L93 Difference]: Finished difference Result 389 states and 470 transitions. [2019-09-20 13:06:37,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:06:37,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:06:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:37,335 INFO L225 Difference]: With dead ends: 389 [2019-09-20 13:06:37,335 INFO L226 Difference]: Without dead ends: 284 [2019-09-20 13:06:37,337 INFO L636 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 [2019-09-20 13:06:37,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2019-09-20 13:06:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 272. [2019-09-20 13:06:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2019-09-20 13:06:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 328 transitions. [2019-09-20 13:06:37,392 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 328 transitions. Word has length 52 [2019-09-20 13:06:37,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:37,393 INFO L475 AbstractCegarLoop]: Abstraction has 272 states and 328 transitions. [2019-09-20 13:06:37,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:06:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 328 transitions. [2019-09-20 13:06:37,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:06:37,397 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:37,397 INFO L407 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] [2019-09-20 13:06:37,398 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:37,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:37,398 INFO L82 PathProgramCache]: Analyzing trace with hash -885199720, now seen corresponding path program 1 times [2019-09-20 13:06:37,399 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:37,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:37,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:37,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:37,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:06:37,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:06:37,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:06:37,591 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:06:37,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:06:37,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:06:37,592 INFO L87 Difference]: Start difference. First operand 272 states and 328 transitions. Second operand 10 states. [2019-09-20 13:06:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:38,318 INFO L93 Difference]: Finished difference Result 968 states and 1260 transitions. [2019-09-20 13:06:38,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:06:38,318 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-20 13:06:38,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:38,331 INFO L225 Difference]: With dead ends: 968 [2019-09-20 13:06:38,333 INFO L226 Difference]: Without dead ends: 720 [2019-09-20 13:06:38,341 INFO L636 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 [2019-09-20 13:06:38,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2019-09-20 13:06:38,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 708. [2019-09-20 13:06:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-09-20 13:06:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 888 transitions. [2019-09-20 13:06:38,438 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 888 transitions. Word has length 57 [2019-09-20 13:06:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:38,439 INFO L475 AbstractCegarLoop]: Abstraction has 708 states and 888 transitions. [2019-09-20 13:06:38,439 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:06:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 888 transitions. [2019-09-20 13:06:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:06:38,443 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:38,444 INFO L407 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] [2019-09-20 13:06:38,444 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:38,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1426922018, now seen corresponding path program 1 times [2019-09-20 13:06:38,445 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:38,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:38,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:38,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:38,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:06:38,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:06:38,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:06:38,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:06:38,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:06:38,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:06:38,527 INFO L87 Difference]: Start difference. First operand 708 states and 888 transitions. Second operand 4 states. [2019-09-20 13:06:38,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:38,949 INFO L93 Difference]: Finished difference Result 1785 states and 2445 transitions. [2019-09-20 13:06:38,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:06:38,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-20 13:06:38,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:38,962 INFO L225 Difference]: With dead ends: 1785 [2019-09-20 13:06:38,962 INFO L226 Difference]: Without dead ends: 1101 [2019-09-20 13:06:38,965 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:06:38,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2019-09-20 13:06:39,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 963. [2019-09-20 13:06:39,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-09-20 13:06:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1214 transitions. [2019-09-20 13:06:39,043 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1214 transitions. Word has length 61 [2019-09-20 13:06:39,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:39,043 INFO L475 AbstractCegarLoop]: Abstraction has 963 states and 1214 transitions. [2019-09-20 13:06:39,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:06:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1214 transitions. [2019-09-20 13:06:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:06:39,046 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:39,047 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:06:39,047 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:39,047 INFO L82 PathProgramCache]: Analyzing trace with hash -50759536, now seen corresponding path program 1 times [2019-09-20 13:06:39,048 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:39,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:39,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:39,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:39,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-20 13:06:39,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:06:39,154 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:06:39,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:39,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-20 13:06:39,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:06:39,500 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 13:06:39,513 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:06:39,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-09-20 13:06:39,514 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-20 13:06:39,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-20 13:06:39,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:06:39,515 INFO L87 Difference]: Start difference. First operand 963 states and 1214 transitions. Second operand 12 states. [2019-09-20 13:06:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:43,292 INFO L93 Difference]: Finished difference Result 2297 states and 3133 transitions. [2019-09-20 13:06:43,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-09-20 13:06:43,293 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2019-09-20 13:06:43,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:43,312 INFO L225 Difference]: With dead ends: 2297 [2019-09-20 13:06:43,312 INFO L226 Difference]: Without dead ends: 1602 [2019-09-20 13:06:43,320 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=535, Invalid=2327, Unknown=0, NotChecked=0, Total=2862 [2019-09-20 13:06:43,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2019-09-20 13:06:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1391. [2019-09-20 13:06:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2019-09-20 13:06:43,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1773 transitions. [2019-09-20 13:06:43,485 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1773 transitions. Word has length 89 [2019-09-20 13:06:43,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:43,488 INFO L475 AbstractCegarLoop]: Abstraction has 1391 states and 1773 transitions. [2019-09-20 13:06:43,488 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-20 13:06:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1773 transitions. [2019-09-20 13:06:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-09-20 13:06:43,499 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:43,499 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:06:43,500 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:43,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:43,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1096635069, now seen corresponding path program 1 times [2019-09-20 13:06:43,501 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:43,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:43,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:43,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:43,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-20 13:06:43,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:06:43,637 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:06:43,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:43,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-20 13:06:43,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:06:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-20 13:06:43,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:06:43,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2019-09-20 13:06:43,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:06:43,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:06:43,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:06:43,915 INFO L87 Difference]: Start difference. First operand 1391 states and 1773 transitions. Second operand 6 states. [2019-09-20 13:06:44,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:44,013 INFO L93 Difference]: Finished difference Result 2798 states and 3667 transitions. [2019-09-20 13:06:44,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:06:44,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2019-09-20 13:06:44,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:44,025 INFO L225 Difference]: With dead ends: 2798 [2019-09-20 13:06:44,025 INFO L226 Difference]: Without dead ends: 1431 [2019-09-20 13:06:44,032 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:06:44,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2019-09-20 13:06:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1431. [2019-09-20 13:06:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2019-09-20 13:06:44,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1817 transitions. [2019-09-20 13:06:44,129 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1817 transitions. Word has length 134 [2019-09-20 13:06:44,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:44,129 INFO L475 AbstractCegarLoop]: Abstraction has 1431 states and 1817 transitions. [2019-09-20 13:06:44,129 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:06:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1817 transitions. [2019-09-20 13:06:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-09-20 13:06:44,136 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:44,137 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:06:44,137 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:44,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:44,138 INFO L82 PathProgramCache]: Analyzing trace with hash -782495877, now seen corresponding path program 1 times [2019-09-20 13:06:44,138 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:44,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:44,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:44,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:44,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:44,301 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-20 13:06:44,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:06:44,302 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:06:44,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:44,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-20 13:06:44,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:06:44,599 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-20 13:06:44,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:06:44,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2019-09-20 13:06:44,614 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:06:44,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:06:44,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:06:44,615 INFO L87 Difference]: Start difference. First operand 1431 states and 1817 transitions. Second operand 11 states. [2019-09-20 13:06:44,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:44,708 INFO L93 Difference]: Finished difference Result 2673 states and 3480 transitions. [2019-09-20 13:06:44,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:06:44,709 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2019-09-20 13:06:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:44,717 INFO L225 Difference]: With dead ends: 2673 [2019-09-20 13:06:44,717 INFO L226 Difference]: Without dead ends: 1266 [2019-09-20 13:06:44,723 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:06:44,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2019-09-20 13:06:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1266. [2019-09-20 13:06:44,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2019-09-20 13:06:44,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1593 transitions. [2019-09-20 13:06:44,820 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1593 transitions. Word has length 134 [2019-09-20 13:06:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:44,821 INFO L475 AbstractCegarLoop]: Abstraction has 1266 states and 1593 transitions. [2019-09-20 13:06:44,821 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:06:44,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1593 transitions. [2019-09-20 13:06:44,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-20 13:06:44,828 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:44,828 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:06:44,828 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:44,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:44,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1152526356, now seen corresponding path program 1 times [2019-09-20 13:06:44,829 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:44,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:44,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:44,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:44,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:45,045 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-20 13:06:45,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:06:45,046 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:06:45,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:45,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-20 13:06:45,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:06:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:06:45,389 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:06:45,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-09-20 13:06:45,390 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:06:45,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:06:45,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:06:45,391 INFO L87 Difference]: Start difference. First operand 1266 states and 1593 transitions. Second operand 11 states. [2019-09-20 13:06:47,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:47,099 INFO L93 Difference]: Finished difference Result 2543 states and 3413 transitions. [2019-09-20 13:06:47,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-20 13:06:47,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 138 [2019-09-20 13:06:47,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:47,113 INFO L225 Difference]: With dead ends: 2543 [2019-09-20 13:06:47,113 INFO L226 Difference]: Without dead ends: 1460 [2019-09-20 13:06:47,118 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2019-09-20 13:06:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2019-09-20 13:06:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1152. [2019-09-20 13:06:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2019-09-20 13:06:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1445 transitions. [2019-09-20 13:06:47,267 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1445 transitions. Word has length 138 [2019-09-20 13:06:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:47,271 INFO L475 AbstractCegarLoop]: Abstraction has 1152 states and 1445 transitions. [2019-09-20 13:06:47,271 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:06:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1445 transitions. [2019-09-20 13:06:47,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-20 13:06:47,276 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:47,277 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:06:47,277 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:47,277 INFO L82 PathProgramCache]: Analyzing trace with hash 2082208677, now seen corresponding path program 2 times [2019-09-20 13:06:47,278 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:47,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:47,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:47,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:47,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 26 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-20 13:06:47,569 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:06:47,569 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:06:47,646 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-20 13:06:47,814 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-20 13:06:47,815 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 13:06:47,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-20 13:06:47,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:06:47,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:06:47,978 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 13:06:47,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:06:47,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 16 [2019-09-20 13:06:47,995 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-20 13:06:47,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-20 13:06:47,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-09-20 13:06:47,996 INFO L87 Difference]: Start difference. First operand 1152 states and 1445 transitions. Second operand 16 states. [2019-09-20 13:06:51,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:51,017 INFO L93 Difference]: Finished difference Result 3268 states and 4416 transitions. [2019-09-20 13:06:51,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-20 13:06:51,022 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 192 [2019-09-20 13:06:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:51,037 INFO L225 Difference]: With dead ends: 3268 [2019-09-20 13:06:51,037 INFO L226 Difference]: Without dead ends: 2295 [2019-09-20 13:06:51,042 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2019-09-20 13:06:51,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2019-09-20 13:06:51,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2078. [2019-09-20 13:06:51,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2078 states. [2019-09-20 13:06:51,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2587 transitions. [2019-09-20 13:06:51,189 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2587 transitions. Word has length 192 [2019-09-20 13:06:51,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:51,190 INFO L475 AbstractCegarLoop]: Abstraction has 2078 states and 2587 transitions. [2019-09-20 13:06:51,190 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-20 13:06:51,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2587 transitions. [2019-09-20 13:06:51,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-20 13:06:51,199 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:06:51,199 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:06:51,200 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:06:51,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:06:51,200 INFO L82 PathProgramCache]: Analyzing trace with hash 123633891, now seen corresponding path program 1 times [2019-09-20 13:06:51,201 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:06:51,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:06:51,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:51,204 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-20 13:06:51,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:06:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-20 13:06:51,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:06:51,339 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:06:51,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:06:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:06:51,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-20 13:06:51,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:06:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-09-20 13:06:51,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:06:51,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2019-09-20 13:06:51,707 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-20 13:06:51,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-20 13:06:51,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:06:51,708 INFO L87 Difference]: Start difference. First operand 2078 states and 2587 transitions. Second operand 13 states. [2019-09-20 13:06:51,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:06:51,795 INFO L93 Difference]: Finished difference Result 2701 states and 3329 transitions. [2019-09-20 13:06:51,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:06:51,795 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 192 [2019-09-20 13:06:51,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:06:51,796 INFO L225 Difference]: With dead ends: 2701 [2019-09-20 13:06:51,796 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:06:51,803 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-09-20 13:06:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:06:51,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:06:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:06:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:06:51,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 192 [2019-09-20 13:06:51,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:06:51,805 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:06:51,805 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-20 13:06:51,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:06:51,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:06:51,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 13:06:52,240 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 44 [2019-09-20 13:06:52,693 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 47 [2019-09-20 13:06:53,806 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 32 [2019-09-20 13:06:54,031 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2019-09-20 13:06:54,197 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 23 [2019-09-20 13:06:55,245 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2019-09-20 13:06:55,360 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 26 [2019-09-20 13:06:55,866 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 27 [2019-09-20 13:06:55,896 INFO L443 ceAbstractionStarter]: For program point L532(lines 532 536) no Hoare annotation was computed. [2019-09-20 13:06:55,896 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 532 536) no Hoare annotation was computed. [2019-09-20 13:06:55,896 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 501 556) no Hoare annotation was computed. [2019-09-20 13:06:55,896 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-09-20 13:06:55,896 INFO L443 ceAbstractionStarter]: For program point L526-2(lines 526 547) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 501 556) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point L548(lines 525 549) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 501 556) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point L609(lines 582 610) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point L602(line 602) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point L602-1(line 602) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 557 616) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 557 616) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point L589(lines 589 593) no Hoare annotation was computed. [2019-09-20 13:06:55,897 INFO L443 ceAbstractionStarter]: For program point L589-1(lines 589 593) no Hoare annotation was computed. [2019-09-20 13:06:55,898 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 557 616) no Hoare annotation was computed. [2019-09-20 13:06:55,898 INFO L443 ceAbstractionStarter]: For program point L584(line 584) no Hoare annotation was computed. [2019-09-20 13:06:55,898 INFO L443 ceAbstractionStarter]: For program point L583-2(lines 583 608) no Hoare annotation was computed. [2019-09-20 13:06:55,898 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 932 938) the Hoare annotation is: true [2019-09-20 13:06:55,898 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 932 938) no Hoare annotation was computed. [2019-09-20 13:06:55,898 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 939 947) no Hoare annotation was computed. [2019-09-20 13:06:55,898 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 939 947) the Hoare annotation is: true [2019-09-20 13:06:55,899 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 939 947) no Hoare annotation was computed. [2019-09-20 13:06:55,899 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 958 982) the Hoare annotation is: true [2019-09-20 13:06:55,899 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 958 982) no Hoare annotation was computed. [2019-09-20 13:06:55,899 INFO L439 ceAbstractionStarter]: At program point L972(line 972) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1) (or .cse0 (not (= ~waterLevel~0 1))) (or (= ~systemActive~0 0) .cse1))) [2019-09-20 13:06:55,899 INFO L443 ceAbstractionStarter]: For program point L970(lines 970 976) no Hoare annotation was computed. [2019-09-20 13:06:55,899 INFO L439 ceAbstractionStarter]: At program point L968(line 968) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1) (or .cse0 (not (= ~waterLevel~0 1))) (or (= ~systemActive~0 0) .cse1))) [2019-09-20 13:06:55,899 INFO L443 ceAbstractionStarter]: For program point L968-1(line 968) no Hoare annotation was computed. [2019-09-20 13:06:55,899 INFO L443 ceAbstractionStarter]: For program point L966(lines 966 979) no Hoare annotation was computed. [2019-09-20 13:06:55,900 INFO L443 ceAbstractionStarter]: For program point L966-1(lines 958 982) no Hoare annotation was computed. [2019-09-20 13:06:55,900 INFO L446 ceAbstractionStarter]: At program point L964(line 964) the Hoare annotation is: true [2019-09-20 13:06:55,900 INFO L443 ceAbstractionStarter]: For program point L964-1(line 964) no Hoare annotation was computed. [2019-09-20 13:06:55,900 INFO L439 ceAbstractionStarter]: At program point L897(line 897) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,900 INFO L439 ceAbstractionStarter]: At program point L896(line 896) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,900 INFO L439 ceAbstractionStarter]: At program point L896-1(line 896) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,900 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 890 912) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 890 912) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 890 912) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L439 ceAbstractionStarter]: At program point L902(line 902) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~8 1) (= main_~tmp~8 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,901 INFO L439 ceAbstractionStarter]: At program point L902-1(line 902) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~8 1) (= main_~tmp~8 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 907) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point L900-1(lines 900 907) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point L898(line 898) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point L864(line 864) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 846 869) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point L863(line 863) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point L862(line 862) no Hoare annotation was computed. [2019-09-20 13:06:55,901 INFO L443 ceAbstractionStarter]: For program point L861(line 861) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 846 869) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L860(line 860) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 846 869) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L859(line 859) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L858(line 858) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L857(line 857) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L856(line 856) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L855(line 855) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L854(line 854) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L853(line 853) no Hoare annotation was computed. [2019-09-20 13:06:55,902 INFO L443 ceAbstractionStarter]: For program point L852(line 852) no Hoare annotation was computed. [2019-09-20 13:06:55,903 INFO L443 ceAbstractionStarter]: For program point L851(line 851) no Hoare annotation was computed. [2019-09-20 13:06:55,903 INFO L443 ceAbstractionStarter]: For program point stopSystemEXIT(lines 355 369) no Hoare annotation was computed. [2019-09-20 13:06:55,903 INFO L439 ceAbstractionStarter]: At program point L361(line 361) the Hoare annotation is: (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 ~waterLevel~0))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0))) (or (= |old(~systemActive~0)| 0) (not (<= 2 ~waterLevel~0))))) [2019-09-20 13:06:55,903 INFO L443 ceAbstractionStarter]: For program point L359(lines 359 365) no Hoare annotation was computed. [2019-09-20 13:06:55,903 INFO L439 ceAbstractionStarter]: At program point stopSystemENTRY(lines 355 369) the Hoare annotation is: (let ((.cse1 (not (<= 2 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0))) (and (or (or .cse0 .cse1) .cse2) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0))) (or (= |old(~systemActive~0)| 0) .cse1)) (or (or .cse0 (not (= ~waterLevel~0 1))) .cse2))) [2019-09-20 13:06:55,903 INFO L443 ceAbstractionStarter]: For program point stopSystemFINAL(lines 355 369) no Hoare annotation was computed. [2019-09-20 13:06:55,903 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 272 280) no Hoare annotation was computed. [2019-09-20 13:06:55,904 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 272 280) the Hoare annotation is: true [2019-09-20 13:06:55,904 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 272 280) no Hoare annotation was computed. [2019-09-20 13:06:55,904 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 336 354) the Hoare annotation is: true [2019-09-20 13:06:55,904 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 349) no Hoare annotation was computed. [2019-09-20 13:06:55,904 INFO L446 ceAbstractionStarter]: At program point L343(line 343) the Hoare annotation is: true [2019-09-20 13:06:55,904 INFO L443 ceAbstractionStarter]: For program point L345-2(lines 345 349) no Hoare annotation was computed. [2019-09-20 13:06:55,904 INFO L443 ceAbstractionStarter]: For program point L343-1(line 343) no Hoare annotation was computed. [2019-09-20 13:06:55,904 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 336 354) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 336 354) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point L288(lines 288 296) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point L288-2(lines 288 296) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point L311(line 311) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point L311-1(line 311) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 281 316) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point L300(lines 300 308) no Hoare annotation was computed. [2019-09-20 13:06:55,905 INFO L443 ceAbstractionStarter]: For program point L300-2(lines 300 308) no Hoare annotation was computed. [2019-09-20 13:06:55,906 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 281 316) no Hoare annotation was computed. [2019-09-20 13:06:55,906 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 281 316) no Hoare annotation was computed. [2019-09-20 13:06:55,906 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 925 931) no Hoare annotation was computed. [2019-09-20 13:06:55,906 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 925 931) the Hoare annotation is: true [2019-09-20 13:06:55,906 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 455 500) no Hoare annotation was computed. [2019-09-20 13:06:55,906 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 455 500) no Hoare annotation was computed. [2019-09-20 13:06:55,906 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 455 500) no Hoare annotation was computed. [2019-09-20 13:06:55,906 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 768 813) no Hoare annotation was computed. [2019-09-20 13:06:55,907 INFO L443 ceAbstractionStarter]: For program point L788(lines 788 795) no Hoare annotation was computed. [2019-09-20 13:06:55,907 INFO L443 ceAbstractionStarter]: For program point L782(lines 782 802) no Hoare annotation was computed. [2019-09-20 13:06:55,907 INFO L443 ceAbstractionStarter]: For program point L782-1(lines 782 802) no Hoare annotation was computed. [2019-09-20 13:06:55,907 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 768 813) no Hoare annotation was computed. [2019-09-20 13:06:55,907 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 768 813) no Hoare annotation was computed. [2019-09-20 13:06:55,907 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 877 886) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,907 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 877 886) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 877 886) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmENTRY(lines 261 271) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 261 271) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point L266(line 266) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point L266-1(line 266) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 261 271) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 253 260) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~systemActive~0 0) (not (<= 1 ~waterLevel~0))) [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 253 260) no Hoare annotation was computed. [2019-09-20 13:06:55,908 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 253 260) no Hoare annotation was computed. [2019-09-20 13:06:55,909 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 127 140) no Hoare annotation was computed. [2019-09-20 13:06:55,909 INFO L443 ceAbstractionStarter]: For program point L131(lines 131 137) no Hoare annotation was computed. [2019-09-20 13:06:55,909 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 127 140) the Hoare annotation is: true [2019-09-20 13:06:55,909 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 127 140) no Hoare annotation was computed. [2019-09-20 13:06:55,909 INFO L443 ceAbstractionStarter]: For program point L226-1(line 226) no Hoare annotation was computed. [2019-09-20 13:06:55,909 INFO L443 ceAbstractionStarter]: For program point L224(lines 224 241) no Hoare annotation was computed. [2019-09-20 13:06:55,909 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 220 244) no Hoare annotation was computed. [2019-09-20 13:06:55,909 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 220 244) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~systemActive~0 0) (not (<= 1 ~waterLevel~0))) [2019-09-20 13:06:55,910 INFO L439 ceAbstractionStarter]: At program point L239(line 239) the Hoare annotation is: (or (= ~systemActive~0 0) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) [2019-09-20 13:06:55,910 INFO L443 ceAbstractionStarter]: For program point L239-1(lines 220 244) no Hoare annotation was computed. [2019-09-20 13:06:55,910 INFO L439 ceAbstractionStarter]: At program point L234(line 234) the Hoare annotation is: (or (= ~systemActive~0 0) (not (<= 1 ~waterLevel~0))) [2019-09-20 13:06:55,910 INFO L439 ceAbstractionStarter]: At program point L230(line 230) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= 1 processEnvironment_~tmp~1) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2019-09-20 13:06:55,910 INFO L443 ceAbstractionStarter]: For program point L228(lines 228 236) no Hoare annotation was computed. [2019-09-20 13:06:55,910 INFO L439 ceAbstractionStarter]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2019-09-20 13:06:55,910 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 186 192) no Hoare annotation was computed. [2019-09-20 13:06:55,910 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 186 192) the Hoare annotation is: true [2019-09-20 13:06:55,911 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 380 447) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,911 INFO L439 ceAbstractionStarter]: At program point L440(lines 389 441) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2019-09-20 13:06:55,911 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 380 447) no Hoare annotation was computed. [2019-09-20 13:06:55,911 INFO L439 ceAbstractionStarter]: At program point L430(line 430) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (and (<= 2 ~waterLevel~0) (and .cse0 (not (= 0 ~systemActive~0)))) (not (= |old(~waterLevel~0)| 1)))) [2019-09-20 13:06:55,911 INFO L443 ceAbstractionStarter]: For program point L428(lines 428 434) no Hoare annotation was computed. [2019-09-20 13:06:55,911 INFO L439 ceAbstractionStarter]: At program point L428-1(lines 420 435) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)))) [2019-09-20 13:06:55,912 INFO L443 ceAbstractionStarter]: For program point L391(lines 390 439) no Hoare annotation was computed. [2019-09-20 13:06:55,912 INFO L439 ceAbstractionStarter]: At program point L422(line 422) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (and .cse0 (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)))) [2019-09-20 13:06:55,912 INFO L443 ceAbstractionStarter]: For program point L420(lines 420 435) no Hoare annotation was computed. [2019-09-20 13:06:55,912 INFO L439 ceAbstractionStarter]: At program point L412(line 412) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)))) [2019-09-20 13:06:55,912 INFO L443 ceAbstractionStarter]: For program point L410(lines 410 416) no Hoare annotation was computed. [2019-09-20 13:06:55,912 INFO L443 ceAbstractionStarter]: For program point L410-1(lines 410 416) no Hoare annotation was computed. [2019-09-20 13:06:55,912 INFO L439 ceAbstractionStarter]: At program point L437(lines 390 439) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and .cse0 (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2019-09-20 13:06:55,913 INFO L439 ceAbstractionStarter]: At program point L402(line 402) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and .cse0 (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2019-09-20 13:06:55,913 INFO L443 ceAbstractionStarter]: For program point L400(lines 400 406) no Hoare annotation was computed. [2019-09-20 13:06:55,913 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 400 406) no Hoare annotation was computed. [2019-09-20 13:06:55,913 INFO L443 ceAbstractionStarter]: For program point L392(lines 392 396) no Hoare annotation was computed. [2019-09-20 13:06:55,913 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 380 447) no Hoare annotation was computed. [2019-09-20 13:06:55,913 INFO L443 ceAbstractionStarter]: For program point L736(lines 736 756) no Hoare annotation was computed. [2019-09-20 13:06:55,913 INFO L443 ceAbstractionStarter]: For program point L736-1(lines 736 756) no Hoare annotation was computed. [2019-09-20 13:06:55,913 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 722 767) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 722 767) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 722 767) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point L742(lines 742 749) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 141 149) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 141 149) the Hoare annotation is: true [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 141 149) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 95 117) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 111) no Hoare annotation was computed. [2019-09-20 13:06:55,914 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 95 117) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point L103-2(lines 103 111) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 95 117) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 619 721) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point L669(lines 668 688) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point L700(line 700) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point L700-1(line 700) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point L665(lines 665 706) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point L684(line 684) no Hoare annotation was computed. [2019-09-20 13:06:55,915 INFO L443 ceAbstractionStarter]: For program point L684-1(line 684) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 619 721) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point L643(lines 643 647) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point L707(lines 707 718) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point L670(lines 670 674) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point L668-2(lines 668 688) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 619 721) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point L689(lines 667 690) no Hoare annotation was computed. [2019-09-20 13:06:55,916 INFO L443 ceAbstractionStarter]: For program point L648(lines 648 664) no Hoare annotation was computed. [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point L708(lines 708 715) no Hoare annotation was computed. [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 915 924) no Hoare annotation was computed. [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 915 924) no Hoare annotation was computed. [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 915 924) no Hoare annotation was computed. [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:06:55,917 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)) [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point activatePumpFINAL(lines 245 252) no Hoare annotation was computed. [2019-09-20 13:06:55,917 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 245 252) no Hoare annotation was computed. [2019-09-20 13:06:55,918 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 245 252) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (not (<= 2 ~waterLevel~0)) (= ~pumpRunning~0 0)) [2019-09-20 13:06:55,918 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 118 126) the Hoare annotation is: true [2019-09-20 13:06:55,918 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 118 126) no Hoare annotation was computed. [2019-09-20 13:06:55,918 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 118 126) no Hoare annotation was computed. [2019-09-20 13:06:55,918 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 317 335) no Hoare annotation was computed. [2019-09-20 13:06:55,918 INFO L443 ceAbstractionStarter]: For program point L326(lines 326 330) no Hoare annotation was computed. [2019-09-20 13:06:55,918 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 317 335) the Hoare annotation is: true [2019-09-20 13:06:55,918 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 317 335) no Hoare annotation was computed. [2019-09-20 13:06:55,919 INFO L446 ceAbstractionStarter]: At program point L324(line 324) the Hoare annotation is: true [2019-09-20 13:06:55,919 INFO L443 ceAbstractionStarter]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2019-09-20 13:06:55,919 INFO L443 ceAbstractionStarter]: For program point L324-1(line 324) no Hoare annotation was computed. [2019-09-20 13:06:55,919 INFO L443 ceAbstractionStarter]: For program point L78-1(lines 74 85) no Hoare annotation was computed. [2019-09-20 13:06:55,919 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 74 85) the Hoare annotation is: true [2019-09-20 13:06:55,919 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 74 85) no Hoare annotation was computed. [2019-09-20 13:06:55,919 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:06:55,919 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-09-20 13:06:55,920 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:06:55,920 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalENTRY(lines 86 94) no Hoare annotation was computed. [2019-09-20 13:06:55,920 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 86 94) no Hoare annotation was computed. [2019-09-20 13:06:55,920 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 86 94) no Hoare annotation was computed. [2019-09-20 13:06:55,920 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 162 185) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (= ~systemActive~0 0) (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|))))) [2019-09-20 13:06:55,920 INFO L439 ceAbstractionStarter]: At program point L175(line 175) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0)))) (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (let ((.cse1 (+ ~waterLevel~0 1))) (and (<= .cse1 |old(~waterLevel~0)|) .cse2 (<= |old(~waterLevel~0)| .cse1))) (= ~systemActive~0 0) (and .cse2 .cse0) (not (<= 2 |old(~waterLevel~0)|)))))) [2019-09-20 13:06:55,921 INFO L439 ceAbstractionStarter]: At program point L173(lines 173 179) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse7 (<= 2 ~waterLevel~0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (and .cse7 .cse9 (not (= 0 ~systemActive~0)))) (.cse1 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and .cse9 .cse6))) (and (or (or .cse0 .cse1) .cse2 .cse3) (let ((.cse8 (+ ~waterLevel~0 1))) (let ((.cse4 (<= .cse8 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| .cse8))) (or (= ~systemActive~0 0) .cse2 .cse1 (and .cse4 .cse5 .cse6) (and .cse4 .cse7 .cse5)))) (or .cse0 .cse3 (not (= |old(~waterLevel~0)| 1)))))) [2019-09-20 13:06:55,921 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 162 185) no Hoare annotation was computed. [2019-09-20 13:06:55,921 INFO L439 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1))) (or (= ~systemActive~0 0) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1))) [2019-09-20 13:06:55,921 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 162 185) no Hoare annotation was computed. [2019-09-20 13:06:55,921 INFO L443 ceAbstractionStarter]: For program point L166(lines 165 184) no Hoare annotation was computed. [2019-09-20 13:06:55,921 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 816 845) no Hoare annotation was computed. [2019-09-20 13:06:55,921 INFO L443 ceAbstractionStarter]: For program point L830(lines 830 834) no Hoare annotation was computed. [2019-09-20 13:06:55,922 INFO L446 ceAbstractionStarter]: At program point L830-1(lines 830 834) the Hoare annotation is: true [2019-09-20 13:06:55,922 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 816 845) the Hoare annotation is: true [2019-09-20 13:06:55,922 INFO L443 ceAbstractionStarter]: For program point L827(line 827) no Hoare annotation was computed. [2019-09-20 13:06:55,922 INFO L446 ceAbstractionStarter]: At program point L826-2(lines 826 840) the Hoare annotation is: true [2019-09-20 13:06:55,922 INFO L446 ceAbstractionStarter]: At program point L822(line 822) the Hoare annotation is: true [2019-09-20 13:06:55,922 INFO L443 ceAbstractionStarter]: For program point L822-1(line 822) no Hoare annotation was computed. [2019-09-20 13:06:55,922 INFO L446 ceAbstractionStarter]: At program point L841(lines 816 845) the Hoare annotation is: true [2019-09-20 13:06:55,922 INFO L443 ceAbstractionStarter]: For program point L837(line 837) no Hoare annotation was computed. [2019-09-20 13:06:55,923 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 50 61) the Hoare annotation is: (or (= ~systemActive~0 0) (not (<= 2 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2019-09-20 13:06:55,923 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 50 61) no Hoare annotation was computed. [2019-09-20 13:06:55,923 INFO L443 ceAbstractionStarter]: For program point L54-1(lines 50 61) no Hoare annotation was computed. [2019-09-20 13:06:55,923 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 870 876) no Hoare annotation was computed. [2019-09-20 13:06:55,923 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 870 876) the Hoare annotation is: true [2019-09-20 13:06:55,923 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:06:55,923 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-09-20 13:06:55,923 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 13:06:55,924 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:06:55,924 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 370 377) no Hoare annotation was computed. [2019-09-20 13:06:55,924 INFO L446 ceAbstractionStarter]: At program point startSystemENTRY(lines 370 377) the Hoare annotation is: true [2019-09-20 13:06:55,924 INFO L443 ceAbstractionStarter]: For program point startSystemFINAL(lines 370 377) no Hoare annotation was computed. [2019-09-20 13:06:55,924 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 194 218) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= ~systemActive~0 0))) (and (or (or .cse0 .cse1) .cse2 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse2 .cse1 (not (= ~waterLevel~0 1))))) [2019-09-20 13:06:55,924 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 194 218) no Hoare annotation was computed. [2019-09-20 13:06:55,924 INFO L439 ceAbstractionStarter]: At program point L213(line 213) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (not (<= 1 ~waterLevel~0))) [2019-09-20 13:06:55,924 INFO L443 ceAbstractionStarter]: For program point L213-1(lines 194 218) no Hoare annotation was computed. [2019-09-20 13:06:55,925 INFO L439 ceAbstractionStarter]: At program point L208(line 208) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (not (<= 1 ~waterLevel~0))) [2019-09-20 13:06:55,925 INFO L439 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (not (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0))) [2019-09-20 13:06:55,925 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 210) no Hoare annotation was computed. [2019-09-20 13:06:55,925 INFO L439 ceAbstractionStarter]: At program point L200(line 200) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= ~systemActive~0 0))) (and (or (or .cse0 .cse1) .cse2 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse2 .cse1 (not (= ~waterLevel~0 1))))) [2019-09-20 13:06:55,925 INFO L443 ceAbstractionStarter]: For program point L200-1(line 200) no Hoare annotation was computed. [2019-09-20 13:06:55,925 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 215) no Hoare annotation was computed. [2019-09-20 13:06:55,925 INFO L443 ceAbstractionStarter]: For program point L66-1(lines 62 73) no Hoare annotation was computed. [2019-09-20 13:06:55,925 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 62 73) no Hoare annotation was computed. [2019-09-20 13:06:55,926 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 62 73) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 (= ~systemActive~0 0)) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2019-09-20 13:06:55,926 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2019-09-20 13:06:55,926 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 949 956) no Hoare annotation was computed. [2019-09-20 13:06:55,926 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 949 956) the Hoare annotation is: true [2019-09-20 13:06:55,926 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 949 956) no Hoare annotation was computed. [2019-09-20 13:06:55,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:06:55 BoogieIcfgContainer [2019-09-20 13:06:55,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:06:55,942 INFO L168 Benchmark]: Toolchain (without parser) took 22322.51 ms. Allocated memory was 135.8 MB in the beginning and 608.2 MB in the end (delta: 472.4 MB). Free memory was 82.3 MB in the beginning and 256.5 MB in the end (delta: -174.2 MB). Peak memory consumption was 499.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:06:55,943 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory was 101.7 MB in the beginning and 101.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:06:55,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.00 ms. Allocated memory was 135.8 MB in the beginning and 197.1 MB in the end (delta: 61.3 MB). Free memory was 82.1 MB in the beginning and 162.4 MB in the end (delta: -80.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:06:55,945 INFO L168 Benchmark]: Boogie Preprocessor took 117.87 ms. Allocated memory is still 197.1 MB. Free memory was 162.4 MB in the beginning and 158.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:06:55,946 INFO L168 Benchmark]: RCFGBuilder took 1203.67 ms. Allocated memory is still 197.1 MB. Free memory was 158.3 MB in the beginning and 71.3 MB in the end (delta: 87.1 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:06:55,947 INFO L168 Benchmark]: TraceAbstraction took 20243.43 ms. Allocated memory was 197.1 MB in the beginning and 608.2 MB in the end (delta: 411.0 MB). Free memory was 70.6 MB in the beginning and 256.5 MB in the end (delta: -185.9 MB). Peak memory consumption was 426.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:06:55,951 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory was 101.7 MB in the beginning and 101.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.00 ms. Allocated memory was 135.8 MB in the beginning and 197.1 MB in the end (delta: 61.3 MB). Free memory was 82.1 MB in the beginning and 162.4 MB in the end (delta: -80.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.87 ms. Allocated memory is still 197.1 MB. Free memory was 162.4 MB in the beginning and 158.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1203.67 ms. Allocated memory is still 197.1 MB. Free memory was 158.3 MB in the beginning and 71.3 MB in the end (delta: 87.1 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20243.43 ms. Allocated memory was 197.1 MB in the beginning and 608.2 MB in the end (delta: 411.0 MB). Free memory was 70.6 MB in the beginning and 256.5 MB in the end (delta: -185.9 MB). Peak memory consumption was 426.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: 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: 389]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || ((0 == splverifierCounter && 1 <= waterLevel) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || ((2 <= waterLevel && 0 == splverifierCounter) && !(0 == systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 245 locations, 1 error locations. SAFE Result, 20.1s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 10.7s AutomataDifference, 0.0s DeadEndRemovalTime, 4.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1932 SDtfs, 2635 SDslu, 6365 SDs, 0 SdLazy, 7375 SolverSat, 1621 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1081 GetRequests, 924 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1134 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2078occurred in iteration=10, 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: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 898 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 3932 PreInvPairs, 4055 NumberOfFragments, 1039 HoareAnnotationTreeSize, 3932 FomulaSimplifications, 20526 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 63 FomulaSimplificationsInter, 11370 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2021 NumberOfCodeBlocks, 2021 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2004 ConstructedInterpolants, 0 QuantifiedInterpolants, 421704 SizeOfPredicates, 18 NumberOfNonLiveVariables, 5308 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 606/670 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...