/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:58:48,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:58:48,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:58:48,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:58:48,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:58:48,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:58:48,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:58:48,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:58:48,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:58:48,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:58:48,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:58:48,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:58:48,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:58:48,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:58:48,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:58:48,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:58:48,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:58:48,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:58:48,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:58:48,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:58:48,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:58:48,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:58:48,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:58:48,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:58:48,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:58:48,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:58:48,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:58:48,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:58:48,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:58:48,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:58:48,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:58:48,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:58:48,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:58:48,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:58:48,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:58:48,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:58:48,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:58:48,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:58:48,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:58:48,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:58:48,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:58:48,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:58:48,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:58:48,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:58:48,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:58:48,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:58:48,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:58:48,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:58:48,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:58:48,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:58:48,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:58:48,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:58:48,902 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:58:48,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:58:48,903 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:58:48,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:58:48,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:58:48,903 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:58:48,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:58:48,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:58:48,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:58:48,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:58:48,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:58:48,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:58:48,905 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:58:49,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:58:49,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:58:49,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:58:49,378 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:58:49,379 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:58:49,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-23 23:58:49,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd4f1ae0/e3c4117e0f8b4417ab045b42ce2a80b1/FLAG2ec72c0be [2020-10-23 23:58:50,132 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:58:50,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-23 23:58:50,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd4f1ae0/e3c4117e0f8b4417ab045b42ce2a80b1/FLAG2ec72c0be [2020-10-23 23:58:50,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd4f1ae0/e3c4117e0f8b4417ab045b42ce2a80b1 [2020-10-23 23:58:50,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:58:50,460 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:58:50,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:58:50,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:58:50,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:58:50,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:58:50" (1/1) ... [2020-10-23 23:58:50,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82e663d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:50, skipping insertion in model container [2020-10-23 23:58:50,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:58:50" (1/1) ... [2020-10-23 23:58:50,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:58:50,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:58:50,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:58:51,006 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:58:51,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:58:51,133 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:58:51,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51 WrapperNode [2020-10-23 23:58:51,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:58:51,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:58:51,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:58:51,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:58:51,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (1/1) ... [2020-10-23 23:58:51,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (1/1) ... [2020-10-23 23:58:51,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (1/1) ... [2020-10-23 23:58:51,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (1/1) ... [2020-10-23 23:58:51,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (1/1) ... [2020-10-23 23:58:51,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (1/1) ... [2020-10-23 23:58:51,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (1/1) ... [2020-10-23 23:58:51,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:58:51,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:58:51,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:58:51,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:58:51,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (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 [2020-10-23 23:58:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:58:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:58:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:58:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:58:51,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:58:51,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:58:51,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:58:51,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:58:51,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:58:51,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:58:51,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:58:51,360 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:58:51,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:58:51,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 23:58:51,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:58:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 23:58:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:58:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:58:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:58:51,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:58:51,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:58:51,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 23:58:51,362 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:58:51,362 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 23:58:51,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:58:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:58:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:58:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:58:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:58:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:58:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:58:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:58:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:58:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:58:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:58:51,364 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:58:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:58:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:58:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:58:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:58:51,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:58:51,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 23:58:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:58:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:58:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:58:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:58:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:58:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:58:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:58:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:58:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:58:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:58:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:58:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:58:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:58:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:58:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:58:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:58:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:58:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:58:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:58:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:58:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:58:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:58:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:58:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 23:58:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:58:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:58:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:58:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:58:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:58:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:58:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:58:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 23:58:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:58:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:58:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:58:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:58:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:58:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:58:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:58:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 23:58:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 23:58:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:58:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 23:58:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:58:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:58:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:58:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:58:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:58:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:58:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:58:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:58:52,645 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:58:52,646 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:58:52,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:58:52 BoogieIcfgContainer [2020-10-23 23:58:52,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:58:52,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:58:52,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:58:52,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:58:52,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:58:50" (1/3) ... [2020-10-23 23:58:52,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c506959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:58:52, skipping insertion in model container [2020-10-23 23:58:52,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:51" (2/3) ... [2020-10-23 23:58:52,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c506959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:58:52, skipping insertion in model container [2020-10-23 23:58:52,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:58:52" (3/3) ... [2020-10-23 23:58:52,661 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-10-23 23:58:52,672 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:58:52,678 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:58:52,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:58:52,710 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:58:52,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:58:52,710 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:58:52,711 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:58:52,711 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:58:52,711 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:58:52,711 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:58:52,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:58:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-23 23:58:52,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:58:52,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:52,759 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] [2020-10-23 23:58:52,759 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:52,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1078994717, now seen corresponding path program 1 times [2020-10-23 23:58:52,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:52,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371919109] [2020-10-23 23:58:52,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,612 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:58:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:58:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:58:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:53,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371919109] [2020-10-23 23:58:53,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:53,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:58:53,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623958287] [2020-10-23 23:58:53,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:58:53,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:53,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:58:53,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:58:53,869 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-23 23:58:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:55,804 INFO L93 Difference]: Finished difference Result 510 states and 610 transitions. [2020-10-23 23:58:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:58:55,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:58:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:55,824 INFO L225 Difference]: With dead ends: 510 [2020-10-23 23:58:55,825 INFO L226 Difference]: Without dead ends: 315 [2020-10-23 23:58:55,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:58:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-10-23 23:58:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-10-23 23:58:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-23 23:58:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2020-10-23 23:58:56,042 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 159 [2020-10-23 23:58:56,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:56,044 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2020-10-23 23:58:56,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:58:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2020-10-23 23:58:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:58:56,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:56,050 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] [2020-10-23 23:58:56,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:58:56,050 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:56,051 INFO L82 PathProgramCache]: Analyzing trace with hash 340263165, now seen corresponding path program 1 times [2020-10-23 23:58:56,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:56,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805861978] [2020-10-23 23:58:56,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,545 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:56,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:58:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:58:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:58:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:56,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805861978] [2020-10-23 23:58:56,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:56,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:58:56,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335663155] [2020-10-23 23:58:56,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:58:56,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:56,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:58:56,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:58:56,710 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand 4 states. [2020-10-23 23:58:57,572 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:58:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:58,992 INFO L93 Difference]: Finished difference Result 414 states and 469 transitions. [2020-10-23 23:58:58,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:58:58,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:58:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:58,998 INFO L225 Difference]: With dead ends: 414 [2020-10-23 23:58:58,998 INFO L226 Difference]: Without dead ends: 298 [2020-10-23 23:58:59,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:58:59,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-23 23:58:59,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-10-23 23:58:59,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 23:58:59,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-10-23 23:58:59,109 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 160 [2020-10-23 23:58:59,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:59,110 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-10-23 23:58:59,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:58:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-10-23 23:58:59,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 23:58:59,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:59,114 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] [2020-10-23 23:58:59,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:58:59,114 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:59,115 INFO L82 PathProgramCache]: Analyzing trace with hash 541278922, now seen corresponding path program 1 times [2020-10-23 23:58:59,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:59,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381938973] [2020-10-23 23:58:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,657 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:59,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:58:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:58:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:58:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 23:58:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:59,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381938973] [2020-10-23 23:58:59,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:59,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:58:59,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487703410] [2020-10-23 23:58:59,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:58:59,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:59,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:58:59,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:58:59,948 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 10 states. [2020-10-23 23:59:00,643 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:01,136 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:59:01,565 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:59:01,922 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:02,367 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:02,742 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:03,890 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:07,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:07,066 INFO L93 Difference]: Finished difference Result 720 states and 842 transitions. [2020-10-23 23:59:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:59:07,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 23:59:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:07,075 INFO L225 Difference]: With dead ends: 720 [2020-10-23 23:59:07,075 INFO L226 Difference]: Without dead ends: 574 [2020-10-23 23:59:07,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:59:07,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-23 23:59:07,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 477. [2020-10-23 23:59:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-23 23:59:07,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 536 transitions. [2020-10-23 23:59:07,302 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 536 transitions. Word has length 173 [2020-10-23 23:59:07,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:07,302 INFO L481 AbstractCegarLoop]: Abstraction has 477 states and 536 transitions. [2020-10-23 23:59:07,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:59:07,302 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 536 transitions. [2020-10-23 23:59:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 23:59:07,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:07,306 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] [2020-10-23 23:59:07,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:59:07,307 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:07,308 INFO L82 PathProgramCache]: Analyzing trace with hash 357046986, now seen corresponding path program 1 times [2020-10-23 23:59:07,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:07,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627153267] [2020-10-23 23:59:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,838 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:07,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:59:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:59:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:07,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 23:59:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 23:59:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:08,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627153267] [2020-10-23 23:59:08,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:08,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:59:08,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639737946] [2020-10-23 23:59:08,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:59:08,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:08,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:59:08,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:59:08,127 INFO L87 Difference]: Start difference. First operand 477 states and 536 transitions. Second operand 9 states. [2020-10-23 23:59:08,817 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:11,415 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:11,857 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:12,404 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:12,907 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:13,332 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:13,780 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:14,250 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:15,547 INFO L93 Difference]: Finished difference Result 1286 states and 1550 transitions. [2020-10-23 23:59:15,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 23:59:15,553 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 23:59:15,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:15,563 INFO L225 Difference]: With dead ends: 1286 [2020-10-23 23:59:15,563 INFO L226 Difference]: Without dead ends: 924 [2020-10-23 23:59:15,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 23:59:15,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-10-23 23:59:15,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 821. [2020-10-23 23:59:15,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-23 23:59:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 949 transitions. [2020-10-23 23:59:15,985 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 949 transitions. Word has length 178 [2020-10-23 23:59:15,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:15,986 INFO L481 AbstractCegarLoop]: Abstraction has 821 states and 949 transitions. [2020-10-23 23:59:15,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:59:15,986 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 949 transitions. [2020-10-23 23:59:15,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 23:59:15,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:15,991 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, 1, 1] [2020-10-23 23:59:15,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:59:15,992 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:15,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1939822395, now seen corresponding path program 1 times [2020-10-23 23:59:15,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:15,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101776549] [2020-10-23 23:59:15,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,388 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:16,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:59:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:59:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:59:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 23:59:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 23:59:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:16,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101776549] [2020-10-23 23:59:16,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:16,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:59:16,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137754872] [2020-10-23 23:59:16,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:59:16,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:16,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:59:16,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:59:16,593 INFO L87 Difference]: Start difference. First operand 821 states and 949 transitions. Second operand 6 states. [2020-10-23 23:59:17,259 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:18,498 INFO L93 Difference]: Finished difference Result 1359 states and 1632 transitions. [2020-10-23 23:59:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 23:59:18,504 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 23:59:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:18,509 INFO L225 Difference]: With dead ends: 1359 [2020-10-23 23:59:18,509 INFO L226 Difference]: Without dead ends: 653 [2020-10-23 23:59:18,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:59:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-10-23 23:59:18,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 576. [2020-10-23 23:59:18,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2020-10-23 23:59:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 627 transitions. [2020-10-23 23:59:18,802 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 627 transitions. Word has length 183 [2020-10-23 23:59:18,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:18,802 INFO L481 AbstractCegarLoop]: Abstraction has 576 states and 627 transitions. [2020-10-23 23:59:18,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:59:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 627 transitions. [2020-10-23 23:59:18,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 23:59:18,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:18,807 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, 1, 1] [2020-10-23 23:59:18,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:59:18,808 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:18,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:18,808 INFO L82 PathProgramCache]: Analyzing trace with hash -432921097, now seen corresponding path program 1 times [2020-10-23 23:59:18,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:18,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302488900] [2020-10-23 23:59:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:18,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:18,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:19,179 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:59:19,179 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:59:19,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:59:19,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:59:19 BoogieIcfgContainer [2020-10-23 23:59:19,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:59:19,469 INFO L168 Benchmark]: Toolchain (without parser) took 29013.51 ms. Allocated memory was 155.2 MB in the beginning and 599.8 MB in the end (delta: 444.6 MB). Free memory was 130.7 MB in the beginning and 279.3 MB in the end (delta: -148.6 MB). Peak memory consumption was 296.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:19,474 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 129.4 MB in the end (delta: 75.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:59:19,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.73 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 108.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:19,477 INFO L168 Benchmark]: Boogie Preprocessor took 141.16 ms. Allocated memory is still 155.2 MB. Free memory was 108.7 MB in the beginning and 136.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:19,477 INFO L168 Benchmark]: RCFGBuilder took 1374.25 ms. Allocated memory is still 155.2 MB. Free memory was 136.6 MB in the beginning and 81.3 MB in the end (delta: 55.3 MB). Peak memory consumption was 54.8 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:19,478 INFO L168 Benchmark]: TraceAbstraction took 26812.68 ms. Allocated memory was 155.2 MB in the beginning and 599.8 MB in the end (delta: 444.6 MB). Free memory was 80.7 MB in the beginning and 279.3 MB in the end (delta: -198.6 MB). Peak memory consumption was 246.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:19,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 129.4 MB in the end (delta: 75.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 667.73 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 108.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 141.16 ms. Allocated memory is still 155.2 MB. Free memory was 108.7 MB in the beginning and 136.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1374.25 ms. Allocated memory is still 155.2 MB. Free memory was 136.6 MB in the beginning and 81.3 MB in the end (delta: 55.3 MB). Peak memory consumption was 54.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26812.68 ms. Allocated memory was 155.2 MB in the beginning and 599.8 MB in the end (delta: 444.6 MB). Free memory was 80.7 MB in the beginning and 279.3 MB in the end (delta: -198.6 MB). Peak memory consumption was 246.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=178, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=178, head={0:0}, methaneLevelCritical=147, pumpRunning=138, systemActive=137, waterLevel=140] [L491] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=178, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=137, waterLevel=140] [L492] int systemActive = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=178, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=140] [L719] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=140] [L888] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=1] [L889] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L795] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L796] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L801] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L883] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L802] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L802] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L804] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L806] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L807] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L786] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L416] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L418] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L419] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L434] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L436] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L907] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L436] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L444] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L454] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L460] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L462] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L464] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L690] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L697] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L464] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L471] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L499] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L506] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L514] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L820] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L821] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L822] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L826] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L927] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L930] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L931] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L826] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L826] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L828] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L832] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L959] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L962] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L963] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L832] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L832] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L834] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L836] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L623] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L626] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L627] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L836] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L836] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L838] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L842] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L714] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product32.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1244 SDtfs, 2149 SDslu, 1750 SDs, 0 SdLazy, 3479 SolverSat, 798 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=821occurred 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: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1036 NumberOfCodeBlocks, 1036 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 848 ConstructedInterpolants, 0 QuantifiedInterpolants, 364366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...