/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 20:57:23,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 20:57:23,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 20:57:23,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 20:57:23,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 20:57:23,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 20:57:23,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 20:57:23,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 20:57:23,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 20:57:23,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 20:57:23,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 20:57:23,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 20:57:23,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 20:57:23,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 20:57:23,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 20:57:23,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 20:57:23,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 20:57:23,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 20:57:23,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 20:57:23,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 20:57:23,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 20:57:23,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 20:57:23,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 20:57:23,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 20:57:23,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 20:57:23,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 20:57:23,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 20:57:23,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 20:57:23,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 20:57:23,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 20:57:23,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 20:57:23,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 20:57:23,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 20:57:23,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 20:57:23,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 20:57:23,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 20:57:23,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 20:57:23,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 20:57:23,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 20:57:23,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 20:57:23,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 20:57:23,505 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 [2020-07-19 20:57:23,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 20:57:23,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 20:57:23,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 20:57:23,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 20:57:23,526 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 20:57:23,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 20:57:23,530 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 20:57:23,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 20:57:23,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 20:57:23,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 20:57:23,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 20:57:23,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 20:57:23,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 20:57:23,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 20:57:23,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 20:57:23,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 20:57:23,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 20:57:23,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 20:57:23,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 20:57:23,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 20:57:23,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 20:57:23,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 20:57:23,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 20:57:23,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 20:57:23,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 20:57:23,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 20:57:23,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 20:57:23,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 20:57:23,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 20:57:23,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 20:57:23,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 20:57:23,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 20:57:23,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 20:57:23,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 20:57:23,859 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 20:57:23,860 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-07-19 20:57:23,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f5ebbd1/38db56ce954b4643abbe6c2fd1f3acc7/FLAG5738e7a9b [2020-07-19 20:57:24,486 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 20:57:24,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-07-19 20:57:24,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f5ebbd1/38db56ce954b4643abbe6c2fd1f3acc7/FLAG5738e7a9b [2020-07-19 20:57:24,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f5ebbd1/38db56ce954b4643abbe6c2fd1f3acc7 [2020-07-19 20:57:24,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 20:57:24,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 20:57:24,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:24,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 20:57:24,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 20:57:24,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:24" (1/1) ... [2020-07-19 20:57:24,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a39229e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:24, skipping insertion in model container [2020-07-19 20:57:24,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:24" (1/1) ... [2020-07-19 20:57:24,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 20:57:24,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 20:57:25,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:25,305 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 20:57:25,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:25,493 INFO L208 MainTranslator]: Completed translation [2020-07-19 20:57:25,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25 WrapperNode [2020-07-19 20:57:25,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:25,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 20:57:25,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 20:57:25,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 20:57:25,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (1/1) ... [2020-07-19 20:57:25,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (1/1) ... [2020-07-19 20:57:25,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (1/1) ... [2020-07-19 20:57:25,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (1/1) ... [2020-07-19 20:57:25,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (1/1) ... [2020-07-19 20:57:25,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (1/1) ... [2020-07-19 20:57:25,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (1/1) ... [2020-07-19 20:57:25,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 20:57:25,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 20:57:25,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 20:57:25,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 20:57:25,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (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 [2020-07-19 20:57:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 20:57:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 20:57:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 20:57:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 20:57:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 20:57:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 20:57:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 20:57:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 20:57:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 20:57:25,664 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 20:57:25,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 20:57:25,664 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 20:57:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 20:57:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 20:57:25,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 20:57:25,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:25,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:25,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 20:57:25,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 20:57:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 20:57:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 20:57:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 20:57:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 20:57:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 20:57:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 20:57:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 20:57:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 20:57:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 20:57:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 20:57:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 20:57:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 20:57:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 20:57:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 20:57:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 20:57:25,674 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 20:57:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 20:57:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 20:57:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 20:57:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 20:57:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 20:57:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 20:57:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 20:57:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 20:57:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 20:57:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 20:57:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 20:57:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 20:57:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 20:57:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 20:57:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 20:57:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 20:57:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 20:57:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 20:57:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 20:57:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 20:57:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 20:57:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 20:57:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 20:57:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 20:57:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 20:57:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 20:57:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 20:57:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 20:57:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 20:57:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 20:57:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 20:57:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 20:57:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 20:57:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 20:57:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 20:57:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 20:57:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 20:57:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 20:57:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 20:57:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 20:57:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 20:57:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 20:57:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 20:57:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 20:57:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 20:57:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 20:57:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 20:57:26,905 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 20:57:26,905 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 20:57:26,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:26 BoogieIcfgContainer [2020-07-19 20:57:26,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 20:57:26,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 20:57:26,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 20:57:26,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 20:57:26,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:57:24" (1/3) ... [2020-07-19 20:57:26,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ea8ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:26, skipping insertion in model container [2020-07-19 20:57:26,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:25" (2/3) ... [2020-07-19 20:57:26,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ea8ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:26, skipping insertion in model container [2020-07-19 20:57:26,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:26" (3/3) ... [2020-07-19 20:57:26,919 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-07-19 20:57:26,931 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 20:57:26,939 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 20:57:26,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 20:57:26,980 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 20:57:26,981 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 20:57:26,981 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 20:57:26,981 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 20:57:26,981 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 20:57:26,982 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 20:57:26,982 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 20:57:26,982 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 20:57:27,006 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-07-19 20:57:27,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 20:57:27,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:27,017 INFO L422 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] [2020-07-19 20:57:27,018 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:27,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:27,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1720198034, now seen corresponding path program 1 times [2020-07-19 20:57:27,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:27,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046435698] [2020-07-19 20:57:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,739 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:27,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046435698] [2020-07-19 20:57:27,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:27,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 20:57:27,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147215889] [2020-07-19 20:57:27,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 20:57:27,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:27,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 20:57:27,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:27,893 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 4 states. [2020-07-19 20:57:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:28,968 INFO L93 Difference]: Finished difference Result 258 states and 340 transitions. [2020-07-19 20:57:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 20:57:28,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-19 20:57:28,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:28,985 INFO L225 Difference]: With dead ends: 258 [2020-07-19 20:57:28,985 INFO L226 Difference]: Without dead ends: 145 [2020-07-19 20:57:28,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:29,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-19 20:57:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-07-19 20:57:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-19 20:57:29,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-07-19 20:57:29,079 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 51 [2020-07-19 20:57:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:29,080 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-07-19 20:57:29,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 20:57:29,080 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-07-19 20:57:29,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 20:57:29,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:29,084 INFO L422 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] [2020-07-19 20:57:29,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 20:57:29,085 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:29,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:29,085 INFO L82 PathProgramCache]: Analyzing trace with hash 220132220, now seen corresponding path program 1 times [2020-07-19 20:57:29,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:29,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924304678] [2020-07-19 20:57:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,386 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:29,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924304678] [2020-07-19 20:57:29,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:29,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 20:57:29,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576505224] [2020-07-19 20:57:29,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 20:57:29,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:29,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 20:57:29,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 20:57:29,464 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 5 states. [2020-07-19 20:57:29,977 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:30,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:30,765 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions. [2020-07-19 20:57:30,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 20:57:30,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-07-19 20:57:30,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:30,769 INFO L225 Difference]: With dead ends: 199 [2020-07-19 20:57:30,769 INFO L226 Difference]: Without dead ends: 135 [2020-07-19 20:57:30,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:57:30,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-07-19 20:57:30,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-07-19 20:57:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-19 20:57:30,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-07-19 20:57:30,819 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 52 [2020-07-19 20:57:30,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:30,820 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-07-19 20:57:30,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 20:57:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-07-19 20:57:30,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 20:57:30,832 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:30,833 INFO L422 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] [2020-07-19 20:57:30,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 20:57:30,833 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:30,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:30,834 INFO L82 PathProgramCache]: Analyzing trace with hash 889380391, now seen corresponding path program 1 times [2020-07-19 20:57:30,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:30,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961018203] [2020-07-19 20:57:30,835 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,191 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:31,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961018203] [2020-07-19 20:57:31,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:31,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:31,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039473786] [2020-07-19 20:57:31,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:31,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:31,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:31,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:31,329 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 9 states. [2020-07-19 20:57:31,823 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:32,148 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-19 20:57:32,422 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:32,655 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:33,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:33,713 INFO L93 Difference]: Finished difference Result 212 states and 266 transitions. [2020-07-19 20:57:33,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 20:57:33,713 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-07-19 20:57:33,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:33,718 INFO L225 Difference]: With dead ends: 212 [2020-07-19 20:57:33,719 INFO L226 Difference]: Without dead ends: 135 [2020-07-19 20:57:33,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:57:33,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-07-19 20:57:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-07-19 20:57:33,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-19 20:57:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-07-19 20:57:33,756 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 57 [2020-07-19 20:57:33,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:33,756 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-07-19 20:57:33,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:33,757 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-07-19 20:57:33,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-19 20:57:33,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:33,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:33,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 20:57:33,758 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:33,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:33,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1390934310, now seen corresponding path program 1 times [2020-07-19 20:57:33,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:33,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985530547] [2020-07-19 20:57:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,077 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:34,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985530547] [2020-07-19 20:57:34,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:34,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 20:57:34,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726019117] [2020-07-19 20:57:34,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 20:57:34,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:34,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 20:57:34,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:57:34,166 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 7 states. [2020-07-19 20:57:34,542 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:35,782 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:36,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:36,285 INFO L93 Difference]: Finished difference Result 302 states and 382 transitions. [2020-07-19 20:57:36,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:57:36,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-07-19 20:57:36,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:36,290 INFO L225 Difference]: With dead ends: 302 [2020-07-19 20:57:36,291 INFO L226 Difference]: Without dead ends: 225 [2020-07-19 20:57:36,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:57:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-19 20:57:36,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 176. [2020-07-19 20:57:36,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-07-19 20:57:36,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 203 transitions. [2020-07-19 20:57:36,355 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 203 transitions. Word has length 65 [2020-07-19 20:57:36,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:36,355 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 203 transitions. [2020-07-19 20:57:36,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 20:57:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 203 transitions. [2020-07-19 20:57:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-19 20:57:36,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:36,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:36,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 20:57:36,358 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:36,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:36,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1075030192, now seen corresponding path program 1 times [2020-07-19 20:57:36,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:36,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499074465] [2020-07-19 20:57:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,647 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:36,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499074465] [2020-07-19 20:57:36,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:36,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 20:57:36,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120365560] [2020-07-19 20:57:36,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 20:57:36,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:36,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 20:57:36,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-19 20:57:36,798 INFO L87 Difference]: Start difference. First operand 176 states and 203 transitions. Second operand 11 states. [2020-07-19 20:57:37,374 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:37,616 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:37,842 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:38,484 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:38,744 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:38,988 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:39,774 INFO L93 Difference]: Finished difference Result 374 states and 471 transitions. [2020-07-19 20:57:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 20:57:39,774 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-07-19 20:57:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:39,777 INFO L225 Difference]: With dead ends: 374 [2020-07-19 20:57:39,777 INFO L226 Difference]: Without dead ends: 226 [2020-07-19 20:57:39,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-19 20:57:39,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-19 20:57:39,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 180. [2020-07-19 20:57:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-07-19 20:57:39,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 207 transitions. [2020-07-19 20:57:39,825 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 207 transitions. Word has length 79 [2020-07-19 20:57:39,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:39,826 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 207 transitions. [2020-07-19 20:57:39,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 20:57:39,826 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 207 transitions. [2020-07-19 20:57:39,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-19 20:57:39,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:39,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:39,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 20:57:39,828 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:39,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:39,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1584503282, now seen corresponding path program 1 times [2020-07-19 20:57:39,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:39,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127413537] [2020-07-19 20:57:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,194 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:40,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127413537] [2020-07-19 20:57:40,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:40,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:40,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068701497] [2020-07-19 20:57:40,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:40,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:40,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:40,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:40,324 INFO L87 Difference]: Start difference. First operand 180 states and 207 transitions. Second operand 9 states. [2020-07-19 20:57:40,818 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:41,941 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:42,208 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:42,444 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:42,662 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:43,570 INFO L93 Difference]: Finished difference Result 536 states and 682 transitions. [2020-07-19 20:57:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-19 20:57:43,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-07-19 20:57:43,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:43,574 INFO L225 Difference]: With dead ends: 536 [2020-07-19 20:57:43,575 INFO L226 Difference]: Without dead ends: 384 [2020-07-19 20:57:43,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-07-19 20:57:43,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-07-19 20:57:43,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 308. [2020-07-19 20:57:43,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-19 20:57:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 354 transitions. [2020-07-19 20:57:43,641 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 354 transitions. Word has length 79 [2020-07-19 20:57:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:43,642 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 354 transitions. [2020-07-19 20:57:43,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 354 transitions. [2020-07-19 20:57:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-19 20:57:43,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:43,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:43,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 20:57:43,644 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:43,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:43,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1898506966, now seen corresponding path program 1 times [2020-07-19 20:57:43,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:43,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240567413] [2020-07-19 20:57:43,645 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,917 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:44,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240567413] [2020-07-19 20:57:44,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:44,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:44,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7793731] [2020-07-19 20:57:44,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:44,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:44,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:44,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:44,032 INFO L87 Difference]: Start difference. First operand 308 states and 354 transitions. Second operand 10 states. [2020-07-19 20:57:44,504 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:45,613 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:45,842 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:46,090 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:46,377 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:47,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:47,145 INFO L93 Difference]: Finished difference Result 702 states and 877 transitions. [2020-07-19 20:57:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 20:57:47,146 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-07-19 20:57:47,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:47,150 INFO L225 Difference]: With dead ends: 702 [2020-07-19 20:57:47,150 INFO L226 Difference]: Without dead ends: 422 [2020-07-19 20:57:47,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-07-19 20:57:47,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-07-19 20:57:47,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 307. [2020-07-19 20:57:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-07-19 20:57:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 351 transitions. [2020-07-19 20:57:47,218 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 351 transitions. Word has length 83 [2020-07-19 20:57:47,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:47,219 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 351 transitions. [2020-07-19 20:57:47,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:57:47,219 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 351 transitions. [2020-07-19 20:57:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 20:57:47,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:47,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:47,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 20:57:47,221 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:47,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1613023294, now seen corresponding path program 1 times [2020-07-19 20:57:47,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:47,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943332887] [2020-07-19 20:57:47,223 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,464 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:47,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943332887] [2020-07-19 20:57:47,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:47,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:47,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182089715] [2020-07-19 20:57:47,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:47,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:47,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:47,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:47,589 INFO L87 Difference]: Start difference. First operand 307 states and 351 transitions. Second operand 10 states. [2020-07-19 20:57:48,689 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:48,937 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-19 20:57:49,214 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:49,454 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:50,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:50,209 INFO L93 Difference]: Finished difference Result 705 states and 887 transitions. [2020-07-19 20:57:50,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:57:50,210 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-07-19 20:57:50,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:50,214 INFO L225 Difference]: With dead ends: 705 [2020-07-19 20:57:50,214 INFO L226 Difference]: Without dead ends: 426 [2020-07-19 20:57:50,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-07-19 20:57:50,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-07-19 20:57:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 317. [2020-07-19 20:57:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-19 20:57:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 361 transitions. [2020-07-19 20:57:50,285 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 361 transitions. Word has length 84 [2020-07-19 20:57:50,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:50,285 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 361 transitions. [2020-07-19 20:57:50,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:57:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 361 transitions. [2020-07-19 20:57:50,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 20:57:50,287 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:50,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:50,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 20:57:50,288 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:50,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:50,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1884470469, now seen corresponding path program 1 times [2020-07-19 20:57:50,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:50,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985472817] [2020-07-19 20:57:50,289 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,567 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:50,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985472817] [2020-07-19 20:57:50,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:50,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:57:50,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986966441] [2020-07-19 20:57:50,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:57:50,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:50,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:57:50,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:57:50,695 INFO L87 Difference]: Start difference. First operand 317 states and 361 transitions. Second operand 8 states. [2020-07-19 20:57:51,720 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:52,565 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:54,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:54,810 INFO L93 Difference]: Finished difference Result 1041 states and 1366 transitions. [2020-07-19 20:57:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 20:57:54,810 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-07-19 20:57:54,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:54,816 INFO L225 Difference]: With dead ends: 1041 [2020-07-19 20:57:54,817 INFO L226 Difference]: Without dead ends: 752 [2020-07-19 20:57:54,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-07-19 20:57:54,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-07-19 20:57:54,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 607. [2020-07-19 20:57:54,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-07-19 20:57:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 713 transitions. [2020-07-19 20:57:54,983 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 713 transitions. Word has length 84 [2020-07-19 20:57:54,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:54,986 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 713 transitions. [2020-07-19 20:57:54,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:57:54,986 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 713 transitions. [2020-07-19 20:57:54,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 20:57:54,990 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:54,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:54,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 20:57:54,990 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:54,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:54,991 INFO L82 PathProgramCache]: Analyzing trace with hash 713728159, now seen corresponding path program 1 times [2020-07-19 20:57:54,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:54,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875079161] [2020-07-19 20:57:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,260 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:55,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875079161] [2020-07-19 20:57:55,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:55,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:57:55,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857534914] [2020-07-19 20:57:55,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:57:55,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:55,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:57:55,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:57:55,402 INFO L87 Difference]: Start difference. First operand 607 states and 713 transitions. Second operand 8 states. [2020-07-19 20:57:56,086 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:58,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:58,653 INFO L93 Difference]: Finished difference Result 1199 states and 1564 transitions. [2020-07-19 20:57:58,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-19 20:57:58,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-07-19 20:57:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:58,663 INFO L225 Difference]: With dead ends: 1199 [2020-07-19 20:57:58,663 INFO L226 Difference]: Without dead ends: 1196 [2020-07-19 20:57:58,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=187, Invalid=463, Unknown=0, NotChecked=0, Total=650 [2020-07-19 20:57:58,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2020-07-19 20:57:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 975. [2020-07-19 20:57:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-07-19 20:57:58,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1154 transitions. [2020-07-19 20:57:58,886 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1154 transitions. Word has length 88 [2020-07-19 20:57:58,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:58,887 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1154 transitions. [2020-07-19 20:57:58,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:57:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1154 transitions. [2020-07-19 20:57:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-19 20:57:58,892 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:58,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:58,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 20:57:58,893 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:58,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1128183326, now seen corresponding path program 1 times [2020-07-19 20:57:58,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:58,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296898644] [2020-07-19 20:57:58,897 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f3849b8 [2020-07-19 20:57:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:57:58,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:57:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:57:59,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:57:59,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 20:57:59,179 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 20:57:59,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-19 20:57:59,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:57:59 BoogieIcfgContainer [2020-07-19 20:57:59,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 20:57:59,407 INFO L168 Benchmark]: Toolchain (without parser) took 34626.47 ms. Allocated memory was 139.5 MB in the beginning and 641.2 MB in the end (delta: 501.7 MB). Free memory was 102.8 MB in the beginning and 448.9 MB in the end (delta: -346.1 MB). Peak memory consumption was 155.6 MB. Max. memory is 7.1 GB. [2020-07-19 20:57:59,408 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 20:57:59,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.84 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 170.5 MB in the end (delta: -68.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-19 20:57:59,409 INFO L168 Benchmark]: Boogie Preprocessor took 85.67 ms. Allocated memory is still 202.4 MB. Free memory was 170.5 MB in the beginning and 166.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-19 20:57:59,414 INFO L168 Benchmark]: RCFGBuilder took 1330.05 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 166.5 MB in the beginning and 195.8 MB in the end (delta: -29.3 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-07-19 20:57:59,415 INFO L168 Benchmark]: TraceAbstraction took 32493.31 ms. Allocated memory was 236.5 MB in the beginning and 641.2 MB in the end (delta: 404.8 MB). Free memory was 195.8 MB in the beginning and 448.9 MB in the end (delta: -253.1 MB). Peak memory consumption was 151.7 MB. Max. memory is 7.1 GB. [2020-07-19 20:57:59,418 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.84 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 170.5 MB in the end (delta: -68.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.67 ms. Allocated memory is still 202.4 MB. Free memory was 170.5 MB in the beginning and 166.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1330.05 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 166.5 MB in the beginning and 195.8 MB in the end (delta: -29.3 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32493.31 ms. Allocated memory was 236.5 MB in the beginning and 641.2 MB in the end (delta: 404.8 MB). Free memory was 195.8 MB in the beginning and 448.9 MB in the end (delta: -253.1 MB). Peak memory consumption was 151.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 249]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L255] int methAndRunningLastTime ; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; VAL [\old(cleanupTimeShifts)=176, \old(head)=177, \old(head)=165, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=143, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L129] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L320] int retValue_acc ; [L323] retValue_acc = 1 [L324] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L130] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L134] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L135] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L113] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L260] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L113] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L114] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L706] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L708] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L714] tmp = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L718] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L718] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L728] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L181] COND FALSE !(\read(methaneLevelCritical)) [L184] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L728] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=1, tmp___2=0, waterLevel=2] [L751] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L772] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L779] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L781] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L801] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L804] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L898] int retValue_acc ; [L899] int tmp ; [L900] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L904] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L231] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND FALSE !(waterLevel < 2) [L238] retValue_acc = 0 [L239] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L904] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L904] tmp = isHighWaterSensorDry() [L906] COND FALSE !(\read(tmp)) [L909] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L911] retValue_acc = tmp___0 [L912] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L806] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] tmp = isHighWaterLevel() [L808] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L810] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L810] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L781] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L265] int tmp ; [L266] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L270] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L270] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L274] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L274] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L277] COND FALSE !(\read(methAndRunningLastTime)) [L282] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L787] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L751] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=1, tmp___2=0, waterLevel=2] [L706] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=1, tmp___2=0, waterLevel=2] [L708] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=1, tmp___2=0, waterLevel=2] [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___1=1, tmp___2=0, waterLevel=2] [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L751] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L772] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L774] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L774] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L779] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L801] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L804] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L819] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L787] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L265] int tmp ; [L266] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L270] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L270] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L274] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L274] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L277] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L279] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L249] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1016 SDtfs, 2600 SDslu, 1176 SDs, 0 SdLazy, 5134 SolverSat, 1906 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 259 SyntacticMatches, 2 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 852 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 853 NumberOfCodeBlocks, 853 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 712 ConstructedInterpolants, 0 QuantifiedInterpolants, 224522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...