/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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:04:35,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:04:35,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:04:35,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:04:35,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:04:35,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:04:35,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:04:35,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:04:35,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:04:35,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:04:35,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:04:35,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:04:35,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:04:35,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:04:35,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:04:35,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:04:35,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:04:35,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:04:35,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:04:35,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:04:35,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:04:35,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:04:35,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:04:35,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:04:35,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:04:35,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:04:35,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:04:35,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:04:35,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:04:35,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:04:35,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:04:35,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:04:35,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:04:35,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:04:35,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:04:35,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:04:35,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:04:35,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:04:35,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:04:35,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:04:35,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:04:35,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:04:35,509 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:04:35,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:04:35,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:04:35,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:04:35,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:04:35,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:04:35,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:04:35,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:04:35,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:04:35,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:04:35,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:04:35,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:04:35,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:04:35,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:04:35,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:04:35,513 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:04:35,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:04:35,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:04:35,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:04:35,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:04:35,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:04:35,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:04:35,514 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:04:35,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:04:35,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:04:35,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:04:35,829 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:04:35,829 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:04:35,830 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-08-22 18:04:35,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ac2033e/0ed26e500c114fbbaf9b0945eaa7bbf9/FLAG3541de2ea [2020-08-22 18:04:36,461 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:04:36,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-08-22 18:04:36,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ac2033e/0ed26e500c114fbbaf9b0945eaa7bbf9/FLAG3541de2ea [2020-08-22 18:04:36,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ac2033e/0ed26e500c114fbbaf9b0945eaa7bbf9 [2020-08-22 18:04:36,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:04:36,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:04:36,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:36,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:04:36,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:04:36,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:36" (1/1) ... [2020-08-22 18:04:36,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4e376f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:36, skipping insertion in model container [2020-08-22 18:04:36,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:36" (1/1) ... [2020-08-22 18:04:36,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:04:36,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:04:37,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:37,309 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:04:37,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:37,455 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:04:37,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37 WrapperNode [2020-08-22 18:04:37,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:37,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:04:37,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:04:37,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:04:37,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (1/1) ... [2020-08-22 18:04:37,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (1/1) ... [2020-08-22 18:04:37,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (1/1) ... [2020-08-22 18:04:37,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (1/1) ... [2020-08-22 18:04:37,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (1/1) ... [2020-08-22 18:04:37,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (1/1) ... [2020-08-22 18:04:37,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (1/1) ... [2020-08-22 18:04:37,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:04:37,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:04:37,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:04:37,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:04:37,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (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 [2020-08-22 18:04:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:04:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:04:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:04:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:04:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:04:37,699 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:04:37,699 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:04:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 18:04:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:04:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:04:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:04:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:04:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:04:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:04:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 18:04:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:04:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:04:37,703 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:04:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:04:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:04:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:04:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:04:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:04:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 18:04:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:04:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:04:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:04:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:04:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:04:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:04:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:04:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:04:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:04:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:04:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:04:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:04:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:04:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:04:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:04:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:04:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:04:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:04:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:04:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:04:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:37,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:04:37,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:04:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:04:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:04:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:04:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:04:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:04:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:04:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 18:04:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:04:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:04:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:04:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:04:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:04:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:04:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:04:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 18:04:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 18:04:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:04:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:04:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:04:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:04:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:04:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:04:37,716 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:04:37,716 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:04:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:04:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:04:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:04:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:04:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:04:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:04:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:04:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:04:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:04:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:04:38,980 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:04:38,981 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:04:38,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:38 BoogieIcfgContainer [2020-08-22 18:04:38,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:04:38,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:04:38,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:04:38,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:04:38,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:04:36" (1/3) ... [2020-08-22 18:04:38,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@917f292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:38, skipping insertion in model container [2020-08-22 18:04:38,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:37" (2/3) ... [2020-08-22 18:04:38,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@917f292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:38, skipping insertion in model container [2020-08-22 18:04:38,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:38" (3/3) ... [2020-08-22 18:04:38,995 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-08-22 18:04:39,005 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:04:39,013 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:04:39,026 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:04:39,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:04:39,045 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:04:39,045 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:04:39,045 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:04:39,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:04:39,046 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:04:39,046 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:04:39,046 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:04:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-08-22 18:04:39,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:04:39,086 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:39,088 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] [2020-08-22 18:04:39,088 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:39,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:39,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times [2020-08-22 18:04:39,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:39,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861391722] [2020-08-22 18:04:39,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:39,166 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,850 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:39,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:04:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:04:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:04:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:40,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861391722] [2020-08-22 18:04:40,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:40,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:04:40,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953294033] [2020-08-22 18:04:40,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:04:40,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:40,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:04:40,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:04:40,135 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-08-22 18:04:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:41,587 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-08-22 18:04:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:04:41,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:04:41,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:41,607 INFO L225 Difference]: With dead ends: 477 [2020-08-22 18:04:41,607 INFO L226 Difference]: Without dead ends: 296 [2020-08-22 18:04:41,613 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 [2020-08-22 18:04:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-08-22 18:04:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-08-22 18:04:41,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-08-22 18:04:41,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-08-22 18:04:41,765 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 153 [2020-08-22 18:04:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:41,768 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-08-22 18:04:41,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:04:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-08-22 18:04:41,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:04:41,781 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:41,782 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] [2020-08-22 18:04:41,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:04:41,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:41,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1820086342, now seen corresponding path program 1 times [2020-08-22 18:04:41,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:41,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737005104] [2020-08-22 18:04:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:41,791 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,243 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:42,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:04:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:04:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:04:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:42,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737005104] [2020-08-22 18:04:42,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:42,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:04:42,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685401131] [2020-08-22 18:04:42,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:04:42,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:42,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:04:42,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:04:42,324 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 4 states. [2020-08-22 18:04:43,062 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:04:44,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:44,029 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2020-08-22 18:04:44,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:04:44,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:04:44,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:44,036 INFO L225 Difference]: With dead ends: 394 [2020-08-22 18:04:44,036 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 18:04:44,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:04:44,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 18:04:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-08-22 18:04:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 18:04:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-08-22 18:04:44,131 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 154 [2020-08-22 18:04:44,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:44,132 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-08-22 18:04:44,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:04:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-08-22 18:04:44,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 18:04:44,135 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:44,135 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] [2020-08-22 18:04:44,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:04:44,135 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:44,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:44,136 INFO L82 PathProgramCache]: Analyzing trace with hash 874874567, now seen corresponding path program 1 times [2020-08-22 18:04:44,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:44,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129004501] [2020-08-22 18:04:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:44,139 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,485 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:44,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:04:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:04:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 18:04:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:44,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129004501] [2020-08-22 18:04:44,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:44,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:04:44,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301925327] [2020-08-22 18:04:44,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:04:44,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:44,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:04:44,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:04:44,678 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 9 states. [2020-08-22 18:04:45,378 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:45,695 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:04:45,944 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:04:46,242 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:46,481 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:46,743 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:48,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:48,281 INFO L93 Difference]: Finished difference Result 414 states and 470 transitions. [2020-08-22 18:04:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 18:04:48,287 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 18:04:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:48,290 INFO L225 Difference]: With dead ends: 414 [2020-08-22 18:04:48,291 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 18:04:48,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-08-22 18:04:48,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 18:04:48,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-08-22 18:04:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 18:04:48,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2020-08-22 18:04:48,368 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 163 [2020-08-22 18:04:48,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:48,369 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2020-08-22 18:04:48,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:04:48,369 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2020-08-22 18:04:48,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-22 18:04:48,372 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:48,372 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] [2020-08-22 18:04:48,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:04:48,373 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:48,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:48,373 INFO L82 PathProgramCache]: Analyzing trace with hash 515182839, now seen corresponding path program 1 times [2020-08-22 18:04:48,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:48,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736349782] [2020-08-22 18:04:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:48,377 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,656 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:48,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 18:04:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:04:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:04:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 18:04:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-08-22 18:04:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-08-22 18:04:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:48,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:48,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736349782] [2020-08-22 18:04:48,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:48,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:04:48,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135213647] [2020-08-22 18:04:48,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:04:48,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:48,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:04:48,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:04:48,864 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 9 states. [2020-08-22 18:04:49,297 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:51,322 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:51,589 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:51,869 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:52,150 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:52,375 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:52,765 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:53,035 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:53,339 INFO L93 Difference]: Finished difference Result 586 states and 694 transitions. [2020-08-22 18:04:53,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:04:53,340 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-08-22 18:04:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:53,344 INFO L225 Difference]: With dead ends: 586 [2020-08-22 18:04:53,345 INFO L226 Difference]: Without dead ends: 451 [2020-08-22 18:04:53,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:04:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-08-22 18:04:53,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 374. [2020-08-22 18:04:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-08-22 18:04:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 416 transitions. [2020-08-22 18:04:53,480 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 416 transitions. Word has length 176 [2020-08-22 18:04:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:53,481 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 416 transitions. [2020-08-22 18:04:53,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:04:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 416 transitions. [2020-08-22 18:04:53,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-08-22 18:04:53,484 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:53,484 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, 1, 1, 1, 1] [2020-08-22 18:04:53,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:04:53,485 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:53,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:53,485 INFO L82 PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times [2020-08-22 18:04:53,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:53,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394164739] [2020-08-22 18:04:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:53,489 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:04:53,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:04:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:04:53,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:04:53,834 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:04:53,834 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:04:53,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:04:53,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:04:53 BoogieIcfgContainer [2020-08-22 18:04:53,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:04:53,875 INFO L168 Benchmark]: Toolchain (without parser) took 17114.82 ms. Allocated memory was 139.5 MB in the beginning and 560.5 MB in the end (delta: 421.0 MB). Free memory was 102.8 MB in the beginning and 421.1 MB in the end (delta: -318.3 MB). Peak memory consumption was 102.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:53,877 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:04:53,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.99 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 171.6 MB in the end (delta: -69.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:53,885 INFO L168 Benchmark]: Boogie Preprocessor took 137.09 ms. Allocated memory is still 202.9 MB. Free memory was 171.6 MB in the beginning and 167.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:53,886 INFO L168 Benchmark]: RCFGBuilder took 1392.55 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 167.0 MB in the beginning and 177.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:53,887 INFO L168 Benchmark]: TraceAbstraction took 14885.50 ms. Allocated memory was 237.0 MB in the beginning and 560.5 MB in the end (delta: 323.5 MB). Free memory was 177.2 MB in the beginning and 421.1 MB in the end (delta: -243.8 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:53,899 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.99 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 171.6 MB in the end (delta: -69.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.09 ms. Allocated memory is still 202.9 MB. Free memory was 171.6 MB in the beginning and 167.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1392.55 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 167.0 MB in the beginning and 177.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14885.50 ms. Allocated memory was 237.0 MB in the beginning and 560.5 MB in the end (delta: 323.5 MB). Free memory was 177.2 MB in the beginning and 421.1 MB in the end (delta: -243.8 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 598]: 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; [L415] int pumpRunning = 0; [L416] int systemActive = 1; [L672] int waterLevel = 1; [L673] int methaneLevelCritical = 0; [L761] int cleanupTimeShifts = 4; [L837] int retValue_acc ; [L838] int tmp ; [L842] FCALL select_helpers() [L843] FCALL select_features() [L844] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L844] RET, EXPR valid_product() [L844] tmp = valid_product() [L846] COND TRUE \read(tmp) [L848] FCALL setup() [L849] CALL runTest() [L828] CALL test() [L607] int splverifierCounter ; [L608] int tmp ; [L609] int tmp___0 ; [L610] int tmp___1 ; [L611] int tmp___2 ; [L614] splverifierCounter = 0 [L616] COND TRUE 1 [L618] COND TRUE splverifierCounter < 4 [L624] tmp = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp) [L628] CALL waterRise() [L690] COND TRUE waterLevel < 2 [L691] waterLevel = waterLevel + 1 [L628] RET waterRise() [L634] tmp___0 = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp___0)) [L644] tmp___2 = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp___2) [L659] CALL timeShift() [L423] COND FALSE !(\read(pumpRunning)) [L430] COND TRUE \read(systemActive) [L432] CALL processEnvironment() [L478] int tmp ; [L481] COND FALSE !(\read(pumpRunning)) [L496] CALL processEnvironment__wrappee__lowWaterSensor() [L452] int tmp ; [L455] COND FALSE !(\read(pumpRunning)) [L470] FCALL processEnvironment__wrappee__base() [L496] RET processEnvironment__wrappee__lowWaterSensor() [L432] RET processEnvironment() [L438] CALL __utac_acc__Specification3_spec__1() [L861] int tmp ; [L862] int tmp___0 ; [L863] int tmp___1 ; [L867] CALL, EXPR isMethaneLevelCritical() [L711] int retValue_acc ; [L714] retValue_acc = methaneLevelCritical [L715] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L873] CALL, EXPR getWaterLevel() [L743] int retValue_acc ; [L746] retValue_acc = waterLevel [L747] return (retValue_acc); [L873] RET, EXPR getWaterLevel() [L873] tmp___0 = getWaterLevel() [L875] COND TRUE tmp___0 == 2 [L877] CALL, EXPR isPumpRunning() [L530] int retValue_acc ; [L533] retValue_acc = pumpRunning [L534] return (retValue_acc); [L877] RET, EXPR isPumpRunning() [L877] tmp___1 = isPumpRunning() [L879] COND FALSE !(\read(tmp___1)) [L883] CALL __automaton_fail() [L598] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 933 SDtfs, 1173 SDslu, 1124 SDs, 0 SdLazy, 2553 SolverSat, 386 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred 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, 186 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...