/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_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:00:09,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:00:09,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:00:09,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:00:09,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:00:09,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:00:09,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:00:09,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:00:09,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:00:09,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:00:09,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:00:09,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:00:09,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:00:09,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:00:09,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:00:09,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:00:09,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:00:09,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:00:09,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:00:09,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:00:09,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:00:09,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:00:09,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:00:09,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:00:09,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:00:09,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:00:09,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:00:09,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:00:09,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:00:09,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:00:09,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:00:09,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:00:09,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:00:09,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:00:09,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:00:09,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:00:09,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:00:09,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:00:09,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:00:09,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:00:09,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:00:09,484 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 21:00:09,498 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:00:09,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:00:09,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:00:09,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:00:09,500 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:00:09,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:00:09,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:00:09,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:00:09,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:00:09,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:00:09,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:00:09,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:00:09,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:00:09,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:00:09,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:00:09,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:00:09,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:00:09,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:00:09,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:00:09,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:00:09,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:00:09,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:00:09,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:00:09,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:00:09,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:00:09,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:00:09,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:00:09,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:00:09,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:00:09,506 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 21:00:09,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:00:09,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:00:09,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:00:09,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:00:09,799 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:00:09,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-07-19 21:00:09,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96d158f0/a31e66f65aa248b3a3fff0a3603bc1d3/FLAGded099f5a [2020-07-19 21:00:10,460 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:00:10,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-07-19 21:00:10,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96d158f0/a31e66f65aa248b3a3fff0a3603bc1d3/FLAGded099f5a [2020-07-19 21:00:10,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96d158f0/a31e66f65aa248b3a3fff0a3603bc1d3 [2020-07-19 21:00:10,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:00:10,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:00:10,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:00:10,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:00:10,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:00:10,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cbf42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10, skipping insertion in model container [2020-07-19 21:00:10,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:00:10,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:00:11,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:00:11,271 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:00:11,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:00:11,445 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:00:11,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11 WrapperNode [2020-07-19 21:00:11,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:00:11,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:00:11,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:00:11,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:00:11,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (1/1) ... [2020-07-19 21:00:11,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (1/1) ... [2020-07-19 21:00:11,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (1/1) ... [2020-07-19 21:00:11,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (1/1) ... [2020-07-19 21:00:11,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (1/1) ... [2020-07-19 21:00:11,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (1/1) ... [2020-07-19 21:00:11,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (1/1) ... [2020-07-19 21:00:11,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:00:11,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:00:11,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:00:11,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:00:11,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (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 21:00:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:00:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:00:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 21:00:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 21:00:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 21:00:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 21:00:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 21:00:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 21:00:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 21:00:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 21:00:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 21:00:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 21:00:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 21:00:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 21:00:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-19 21:00:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 21:00:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 21:00:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 21:00:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 21:00:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 21:00:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 21:00:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 21:00:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 21:00:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 21:00:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 21:00:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 21:00:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 21:00:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 21:00:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:00:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 21:00:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 21:00:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 21:00:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 21:00:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 21:00:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 21:00:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 21:00:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 21:00:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 21:00:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 21:00:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 21:00:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 21:00:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:00:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:00:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 21:00:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 21:00:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 21:00:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 21:00:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 21:00:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 21:00:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 21:00:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:00:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 21:00:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 21:00:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:00:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 21:00:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 21:00:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:00:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 21:00:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 21:00:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 21:00:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 21:00:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 21:00:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 21:00:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 21:00:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 21:00:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 21:00:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 21:00:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 21:00:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 21:00:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 21:00:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 21:00:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 21:00:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 21:00:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 21:00:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 21:00:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 21:00:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 21:00:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 21:00:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 21:00:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 21:00:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 21:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 21:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-19 21:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 21:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 21:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 21:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 21:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 21:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 21:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 21:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 21:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 21:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 21:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:00:12,885 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:00:12,886 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 21:00:12,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:00:12 BoogieIcfgContainer [2020-07-19 21:00:12,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:00:12,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:00:12,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:00:12,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:00:12,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:00:10" (1/3) ... [2020-07-19 21:00:12,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5519487a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:00:12, skipping insertion in model container [2020-07-19 21:00:12,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:11" (2/3) ... [2020-07-19 21:00:12,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5519487a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:00:12, skipping insertion in model container [2020-07-19 21:00:12,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:00:12" (3/3) ... [2020-07-19 21:00:12,901 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-07-19 21:00:12,911 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:00:12,920 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:00:12,934 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:00:12,961 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:00:12,961 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:00:12,962 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:00:12,962 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:00:12,962 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:00:12,962 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:00:12,962 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:00:12,963 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:00:12,985 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-19 21:00:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 21:00:12,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:12,997 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 21:00:12,998 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:13,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:13,004 INFO L82 PathProgramCache]: Analyzing trace with hash 628645976, now seen corresponding path program 1 times [2020-07-19 21:00:13,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:13,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888679096] [2020-07-19 21:00:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@df4088d [2020-07-19 21:00:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,671 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:13,824 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 21:00:13,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888679096] [2020-07-19 21:00:13,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:13,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:00:13,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886580304] [2020-07-19 21:00:13,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:00:13,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:13,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:00:13,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:00:13,858 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-07-19 21:00:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:15,128 INFO L93 Difference]: Finished difference Result 314 states and 413 transitions. [2020-07-19 21:00:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:00:15,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 21:00:15,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:15,146 INFO L225 Difference]: With dead ends: 314 [2020-07-19 21:00:15,146 INFO L226 Difference]: Without dead ends: 170 [2020-07-19 21:00:15,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:00:15,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-19 21:00:15,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 135. [2020-07-19 21:00:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-07-19 21:00:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-07-19 21:00:15,291 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 52 [2020-07-19 21:00:15,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:15,292 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-07-19 21:00:15,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:00:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-07-19 21:00:15,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 21:00:15,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:15,304 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] [2020-07-19 21:00:15,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:00:15,305 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:15,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:15,306 INFO L82 PathProgramCache]: Analyzing trace with hash 364620848, now seen corresponding path program 1 times [2020-07-19 21:00:15,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:15,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544944767] [2020-07-19 21:00:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@df4088d [2020-07-19 21:00:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,701 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:15,745 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 21:00:15,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544944767] [2020-07-19 21:00:15,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:15,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:00:15,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524512906] [2020-07-19 21:00:15,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 21:00:15,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:15,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 21:00:15,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 21:00:15,750 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 4 states. [2020-07-19 21:00:16,178 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:00:17,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:17,077 INFO L93 Difference]: Finished difference Result 237 states and 292 transitions. [2020-07-19 21:00:17,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:00:17,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 21:00:17,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:17,081 INFO L225 Difference]: With dead ends: 237 [2020-07-19 21:00:17,081 INFO L226 Difference]: Without dead ends: 154 [2020-07-19 21:00:17,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:00:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-19 21:00:17,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 126. [2020-07-19 21:00:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-19 21:00:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-07-19 21:00:17,146 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 53 [2020-07-19 21:00:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:17,147 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-07-19 21:00:17,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 21:00:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-07-19 21:00:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 21:00:17,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:17,152 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] [2020-07-19 21:00:17,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:00:17,153 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:17,153 INFO L82 PathProgramCache]: Analyzing trace with hash -840364754, now seen corresponding path program 1 times [2020-07-19 21:00:17,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:17,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345266967] [2020-07-19 21:00:17,154 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@df4088d [2020-07-19 21:00:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,533 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:17,663 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 21:00:17,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345266967] [2020-07-19 21:00:17,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:17,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:00:17,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551979905] [2020-07-19 21:00:17,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:00:17,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:17,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:00:17,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:00:17,667 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 8 states. [2020-07-19 21:00:18,089 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:18,419 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:18,668 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:18,901 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:19,620 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:00:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:21,500 INFO L93 Difference]: Finished difference Result 439 states and 548 transitions. [2020-07-19 21:00:21,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 21:00:21,503 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-19 21:00:21,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:21,508 INFO L225 Difference]: With dead ends: 439 [2020-07-19 21:00:21,509 INFO L226 Difference]: Without dead ends: 337 [2020-07-19 21:00:21,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:00:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-19 21:00:21,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 272. [2020-07-19 21:00:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-19 21:00:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 331 transitions. [2020-07-19 21:00:21,584 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 331 transitions. Word has length 58 [2020-07-19 21:00:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:21,585 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 331 transitions. [2020-07-19 21:00:21,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:00:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 331 transitions. [2020-07-19 21:00:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-19 21:00:21,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:21,587 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] [2020-07-19 21:00:21,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:00:21,588 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:21,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:21,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1271614513, now seen corresponding path program 1 times [2020-07-19 21:00:21,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:21,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710976126] [2020-07-19 21:00:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@df4088d [2020-07-19 21:00:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,853 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:21,982 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 21:00:21,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710976126] [2020-07-19 21:00:21,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:21,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:00:21,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398231354] [2020-07-19 21:00:21,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:00:21,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:21,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:00:21,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:00:21,985 INFO L87 Difference]: Start difference. First operand 272 states and 331 transitions. Second operand 8 states. [2020-07-19 21:00:22,350 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:23,717 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:24,069 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:24,346 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:24,597 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:25,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:25,402 INFO L93 Difference]: Finished difference Result 839 states and 1103 transitions. [2020-07-19 21:00:25,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:00:25,403 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-19 21:00:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:25,409 INFO L225 Difference]: With dead ends: 839 [2020-07-19 21:00:25,410 INFO L226 Difference]: Without dead ends: 591 [2020-07-19 21:00:25,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:00:25,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-07-19 21:00:25,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 521. [2020-07-19 21:00:25,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-07-19 21:00:25,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 649 transitions. [2020-07-19 21:00:25,583 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 649 transitions. Word has length 63 [2020-07-19 21:00:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:25,584 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 649 transitions. [2020-07-19 21:00:25,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:00:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 649 transitions. [2020-07-19 21:00:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 21:00:25,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:25,587 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] [2020-07-19 21:00:25,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:00:25,587 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:25,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1708991285, now seen corresponding path program 1 times [2020-07-19 21:00:25,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:25,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18806389] [2020-07-19 21:00:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@df4088d [2020-07-19 21:00:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:00:25,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:00:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:00:25,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:00:25,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:00:25,762 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:00:25,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 21:00:25,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:00:25 BoogieIcfgContainer [2020-07-19 21:00:25,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:00:25,927 INFO L168 Benchmark]: Toolchain (without parser) took 15190.88 ms. Allocated memory was 140.0 MB in the beginning and 461.4 MB in the end (delta: 321.4 MB). Free memory was 101.9 MB in the beginning and 327.8 MB in the end (delta: -225.9 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,928 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.37 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 173.2 MB in the end (delta: -71.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,932 INFO L168 Benchmark]: Boogie Preprocessor took 95.12 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 169.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,933 INFO L168 Benchmark]: RCFGBuilder took 1349.59 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 169.2 MB in the beginning and 196.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,934 INFO L168 Benchmark]: TraceAbstraction took 13030.75 ms. Allocated memory was 236.5 MB in the beginning and 461.4 MB in the end (delta: 224.9 MB). Free memory was 194.6 MB in the beginning and 327.8 MB in the end (delta: -133.3 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.37 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 173.2 MB in the end (delta: -71.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.12 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 169.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1349.59 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 169.2 MB in the beginning and 196.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13030.75 ms. Allocated memory was 236.5 MB in the beginning and 461.4 MB in the end (delta: 224.9 MB). Free memory was 194.6 MB in the beginning and 327.8 MB in the end (delta: -133.3 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 712]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L489] int pumpRunning = 0; [L490] int systemActive = 1; [L717] int cleanupTimeShifts = 4; [L886] int waterLevel = 1; [L887] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L793] int retValue_acc ; [L794] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L799] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L877] int retValue_acc ; [L880] retValue_acc = 1 [L881] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L800] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L804] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L805] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L784] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L434] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] COND TRUE waterLevel < 2 [L905] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L462] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L688] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L462] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L469] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L497] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L504] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L512] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L818] int tmp ; [L819] int tmp___0 ; [L820] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L824] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] int retValue_acc ; [L928] retValue_acc = methaneLevelCritical [L929] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L824] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L824] tmp = isMethaneLevelCritical() [L826] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L830] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L957] int retValue_acc ; [L960] retValue_acc = waterLevel [L961] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L830] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L830] tmp___0 = getWaterLevel() [L832] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L834] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] int retValue_acc ; [L624] retValue_acc = pumpRunning [L625] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L834] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L834] tmp___1 = isPumpRunning() [L836] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L840] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L712] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 813 SDslu, 376 SDs, 0 SdLazy, 1979 SolverSat, 520 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=521occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 198 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...