/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:34:50,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:34:50,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:34:50,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:34:50,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:34:50,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:34:50,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:34:50,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:34:50,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:34:50,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:34:50,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:34:50,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:34:50,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:34:50,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:34:50,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:34:50,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:34:50,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:34:50,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:34:50,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:34:50,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:34:50,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:34:50,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:34:50,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:34:50,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:34:50,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:34:50,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:34:50,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:34:50,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:34:50,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:34:50,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:34:50,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:34:50,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:34:50,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:34:50,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:34:50,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:34:50,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:34:50,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:34:50,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:34:50,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:34:50,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:34:50,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:34:50,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:34:50,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:34:50,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:34:50,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:34:50,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:34:50,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:34:50,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:34:50,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:34:50,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:34:50,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:34:50,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:34:50,493 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:34:50,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:34:50,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:34:50,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:34:50,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:34:50,494 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:34:50,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:34:50,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:34:50,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:34:50,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:34:50,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:34:50,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:34:50,495 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:34:50,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:34:50,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:34:50,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:34:50,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:34:50,794 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:34:50,795 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-07-07 12:34:50,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a94f8bc5/86f4a17651a840f6a1c75565ee8bf3de/FLAGa9e3e5337 [2020-07-07 12:34:51,351 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:34:51,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-07-07 12:34:51,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a94f8bc5/86f4a17651a840f6a1c75565ee8bf3de/FLAGa9e3e5337 [2020-07-07 12:34:51,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a94f8bc5/86f4a17651a840f6a1c75565ee8bf3de [2020-07-07 12:34:51,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:34:51,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:34:51,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:51,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:34:51,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:34:51,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:51" (1/1) ... [2020-07-07 12:34:51,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c984257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:51, skipping insertion in model container [2020-07-07 12:34:51,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:51" (1/1) ... [2020-07-07 12:34:51,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:34:51,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:34:52,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:52,276 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:34:52,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:52,386 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:34:52,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52 WrapperNode [2020-07-07 12:34:52,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:52,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:34:52,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:34:52,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:34:52,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (1/1) ... [2020-07-07 12:34:52,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (1/1) ... [2020-07-07 12:34:52,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (1/1) ... [2020-07-07 12:34:52,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (1/1) ... [2020-07-07 12:34:52,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (1/1) ... [2020-07-07 12:34:52,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (1/1) ... [2020-07-07 12:34:52,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (1/1) ... [2020-07-07 12:34:52,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:34:52,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:34:52,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:34:52,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:34:52,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (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 [2020-07-07 12:34:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:34:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:34:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:34:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:34:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:34:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:34:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:34:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:34:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:34:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:34:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:34:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:34:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:34:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:34:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:34:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:34:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:34:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:34:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:34:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:34:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:34:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:34:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:34:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:34:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:34:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:34:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 12:34:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:34:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:34:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:34:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:34:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:34:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:34:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:34:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:34:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:34:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:34:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:34:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:34:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:34:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:34:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:34:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:34:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:34:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:34:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:34:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:34:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:34:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:34:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:34:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:34:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:34:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:34:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:34:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:34:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:34:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:34:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:34:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:34:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:34:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:34:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:34:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:34:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:34:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:34:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:34:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:34:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:34:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:34:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:34:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:34:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:34:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:34:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:34:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:34:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:34:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:34:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:34:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:34:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:34:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:34:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:34:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:34:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 12:34:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:34:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:34:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:34:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:34:53,661 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:34:53,661 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:34:53,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:53 BoogieIcfgContainer [2020-07-07 12:34:53,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:34:53,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:34:53,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:34:53,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:34:53,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:34:51" (1/3) ... [2020-07-07 12:34:53,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e37d6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:53, skipping insertion in model container [2020-07-07 12:34:53,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:52" (2/3) ... [2020-07-07 12:34:53,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e37d6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:53, skipping insertion in model container [2020-07-07 12:34:53,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:53" (3/3) ... [2020-07-07 12:34:53,676 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-07-07 12:34:53,686 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:34:53,696 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:34:53,710 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:34:53,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:34:53,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:34:53,726 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:34:53,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:34:53,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:34:53,726 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:34:53,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:34:53,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:34:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states. [2020-07-07 12:34:53,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:34:53,770 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:53,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:53,772 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:53,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:53,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1599034145, now seen corresponding path program 1 times [2020-07-07 12:34:53,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:53,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34776723] [2020-07-07 12:34:53,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,493 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:54,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:54,660 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:54,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34776723] [2020-07-07 12:34:54,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:54,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:34:54,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221099342] [2020-07-07 12:34:54,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:34:54,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:54,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:34:54,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:54,688 INFO L87 Difference]: Start difference. First operand 349 states. Second operand 3 states. [2020-07-07 12:34:56,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:56,188 INFO L93 Difference]: Finished difference Result 567 states and 676 transitions. [2020-07-07 12:34:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:34:56,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:34:56,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:56,207 INFO L225 Difference]: With dead ends: 567 [2020-07-07 12:34:56,208 INFO L226 Difference]: Without dead ends: 343 [2020-07-07 12:34:56,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-07 12:34:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 298. [2020-07-07 12:34:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-07 12:34:56,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 328 transitions. [2020-07-07 12:34:56,362 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 328 transitions. Word has length 153 [2020-07-07 12:34:56,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:56,363 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 328 transitions. [2020-07-07 12:34:56,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:34:56,363 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 328 transitions. [2020-07-07 12:34:56,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:34:56,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:56,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:56,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:34:56,369 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:56,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:56,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1907459970, now seen corresponding path program 1 times [2020-07-07 12:34:56,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:56,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760790844] [2020-07-07 12:34:56,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,827 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:56,923 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:56,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760790844] [2020-07-07 12:34:56,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:56,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:34:56,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613598770] [2020-07-07 12:34:56,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:34:56,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:56,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:34:56,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:34:56,929 INFO L87 Difference]: Start difference. First operand 298 states and 328 transitions. Second operand 4 states. [2020-07-07 12:34:57,506 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:58,741 INFO L93 Difference]: Finished difference Result 478 states and 543 transitions. [2020-07-07 12:34:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:34:58,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:34:58,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:58,768 INFO L225 Difference]: With dead ends: 478 [2020-07-07 12:34:58,768 INFO L226 Difference]: Without dead ends: 326 [2020-07-07 12:34:58,770 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 [2020-07-07 12:34:58,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-07-07 12:34:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 288. [2020-07-07 12:34:58,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-07-07 12:34:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 315 transitions. [2020-07-07 12:34:58,853 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 315 transitions. Word has length 154 [2020-07-07 12:34:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:58,853 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 315 transitions. [2020-07-07 12:34:58,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:34:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 315 transitions. [2020-07-07 12:34:58,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:34:58,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:58,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:58,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:34:58,857 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:58,858 INFO L82 PathProgramCache]: Analyzing trace with hash -383907644, now seen corresponding path program 1 times [2020-07-07 12:34:58,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:58,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224170797] [2020-07-07 12:34:58,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,184 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:59,335 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:59,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224170797] [2020-07-07 12:34:59,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:59,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:59,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899760900] [2020-07-07 12:34:59,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:59,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:59,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:59,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:59,338 INFO L87 Difference]: Start difference. First operand 288 states and 315 transitions. Second operand 9 states. [2020-07-07 12:34:59,834 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:00,152 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:35:00,402 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:35:00,636 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:00,900 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:01,152 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:02,029 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:35:04,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:04,790 INFO L93 Difference]: Finished difference Result 790 states and 914 transitions. [2020-07-07 12:35:04,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:35:04,791 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:35:04,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:04,797 INFO L225 Difference]: With dead ends: 790 [2020-07-07 12:35:04,797 INFO L226 Difference]: Without dead ends: 612 [2020-07-07 12:35:04,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:35:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-07-07 12:35:04,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 541. [2020-07-07 12:35:04,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-07-07 12:35:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 610 transitions. [2020-07-07 12:35:04,978 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 610 transitions. Word has length 163 [2020-07-07 12:35:04,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:04,979 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 610 transitions. [2020-07-07 12:35:04,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:35:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 610 transitions. [2020-07-07 12:35:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:35:04,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:04,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:04,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:35:04,984 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:04,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:04,984 INFO L82 PathProgramCache]: Analyzing trace with hash 621095136, now seen corresponding path program 1 times [2020-07-07 12:35:04,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:04,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063752500] [2020-07-07 12:35:04,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,272 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:05,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:05,470 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:05,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063752500] [2020-07-07 12:35:05,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:05,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:35:05,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512503173] [2020-07-07 12:35:05,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:35:05,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:05,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:35:05,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:35:05,473 INFO L87 Difference]: Start difference. First operand 541 states and 610 transitions. Second operand 9 states. [2020-07-07 12:35:06,020 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:08,375 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:08,651 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:08,963 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:09,287 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:09,551 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:09,788 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:10,020 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:11,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:11,017 INFO L93 Difference]: Finished difference Result 1490 states and 1799 transitions. [2020-07-07 12:35:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:35:11,021 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:35:11,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:11,028 INFO L225 Difference]: With dead ends: 1490 [2020-07-07 12:35:11,029 INFO L226 Difference]: Without dead ends: 1059 [2020-07-07 12:35:11,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:35:11,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2020-07-07 12:35:11,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 955. [2020-07-07 12:35:11,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2020-07-07 12:35:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1103 transitions. [2020-07-07 12:35:11,381 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1103 transitions. Word has length 172 [2020-07-07 12:35:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:11,383 INFO L479 AbstractCegarLoop]: Abstraction has 955 states and 1103 transitions. [2020-07-07 12:35:11,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:35:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1103 transitions. [2020-07-07 12:35:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:35:11,391 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:11,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:11,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:35:11,392 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:11,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:11,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1515693883, now seen corresponding path program 1 times [2020-07-07 12:35:11,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:11,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652782493] [2020-07-07 12:35:11,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:11,713 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:11,714 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:35:11,714 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:35:11,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:35:11,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:35:11 BoogieIcfgContainer [2020-07-07 12:35:11,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:35:11,750 INFO L168 Benchmark]: Toolchain (without parser) took 20036.20 ms. Allocated memory was 142.6 MB in the beginning and 629.1 MB in the end (delta: 486.5 MB). Free memory was 99.1 MB in the beginning and 372.5 MB in the end (delta: -273.4 MB). Peak memory consumption was 213.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:11,752 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 12:35:11,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.05 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 98.9 MB in the beginning and 166.2 MB in the end (delta: -67.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:11,759 INFO L168 Benchmark]: Boogie Preprocessor took 92.05 ms. Allocated memory is still 199.8 MB. Free memory was 166.2 MB in the beginning and 161.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:11,760 INFO L168 Benchmark]: RCFGBuilder took 1188.31 ms. Allocated memory was 199.8 MB in the beginning and 227.5 MB in the end (delta: 27.8 MB). Free memory was 161.9 MB in the beginning and 166.2 MB in the end (delta: -4.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:11,761 INFO L168 Benchmark]: TraceAbstraction took 18078.85 ms. Allocated memory was 227.5 MB in the beginning and 629.1 MB in the end (delta: 401.6 MB). Free memory was 166.2 MB in the beginning and 372.5 MB in the end (delta: -206.3 MB). Peak memory consumption was 195.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:11,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.05 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 98.9 MB in the beginning and 166.2 MB in the end (delta: -67.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.05 ms. Allocated memory is still 199.8 MB. Free memory was 166.2 MB in the beginning and 161.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1188.31 ms. Allocated memory was 199.8 MB in the beginning and 227.5 MB in the end (delta: 27.8 MB). Free memory was 161.9 MB in the beginning and 166.2 MB in the end (delta: -4.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18078.85 ms. Allocated memory was 227.5 MB in the beginning and 629.1 MB in the end (delta: 401.6 MB). Free memory was 166.2 MB in the beginning and 372.5 MB in the end (delta: -206.3 MB). Peak memory consumption was 195.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 661 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1138 SDtfs, 1684 SDslu, 1301 SDs, 0 SdLazy, 3727 SolverSat, 568 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred 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: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...