/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:56:20,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:56:20,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:56:20,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:56:20,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:56:20,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:56:20,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:56:20,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:56:20,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:56:20,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:56:20,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:56:20,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:56:20,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:56:20,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:56:20,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:56:20,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:56:20,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:56:20,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:56:20,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:56:20,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:56:20,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:56:20,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:56:20,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:56:20,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:56:20,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:56:20,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:56:20,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:56:20,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:56:20,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:56:20,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:56:20,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:56:20,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:56:20,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:56:20,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:56:20,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:56:20,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:56:20,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:56:20,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:56:20,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:56:20,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:56:20,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:56:20,434 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 19:56:20,448 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:56:20,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:56:20,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:56:20,450 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:56:20,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:56:20,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:56:20,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:56:20,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:56:20,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:56:20,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:56:20,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:56:20,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:56:20,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:56:20,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:56:20,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:56:20,452 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:56:20,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:56:20,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:56:20,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:56:20,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:56:20,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:56:20,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:56:20,454 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:56:20,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:56:20,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:56:20,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:56:20,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:56:20,957 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:56:20,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-10-23 19:56:21,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3911064b/7d138b9c6f354f69b947fb80a8e0abcf/FLAGc17246d48 [2020-10-23 19:56:21,810 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:56:21,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-10-23 19:56:21,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3911064b/7d138b9c6f354f69b947fb80a8e0abcf/FLAGc17246d48 [2020-10-23 19:56:22,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3911064b/7d138b9c6f354f69b947fb80a8e0abcf [2020-10-23 19:56:22,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:56:22,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:56:22,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:56:22,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:56:22,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:56:22,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47df3b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22, skipping insertion in model container [2020-10-23 19:56:22,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:56:22,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:56:22,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:56:22,576 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:56:22,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:56:22,773 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:56:22,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22 WrapperNode [2020-10-23 19:56:22,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:56:22,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:56:22,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:56:22,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:56:22,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (1/1) ... [2020-10-23 19:56:22,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:56:22,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:56:22,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:56:22,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:56:22,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (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 19:56:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:56:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:56:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:56:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:56:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:56:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:56:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:56:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:56:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:56:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:56:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:56:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:56:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:56:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:56:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:56:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:56:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 19:56:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:56:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:56:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:56:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:56:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:56:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:56:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:56:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:56:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:56:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:56:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:56:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:56:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:56:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:56:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:56:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:56:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:56:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:56:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:56:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:56:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:56:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:56:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:56:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:56:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:56:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:56:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:56:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:56:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:56:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:56:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:56:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:56:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:56:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:56:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:56:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:56:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:56:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:56:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:56:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:56:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:56:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:56:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:56:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:56:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:56:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:56:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:56:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:56:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:56:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:56:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:56:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:56:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:56:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:56:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:56:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:56:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:56:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:56:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:56:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 19:56:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:56:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:56:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:56:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:56:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:56:24,384 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:56:24,384 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:56:24,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:24 BoogieIcfgContainer [2020-10-23 19:56:24,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:56:24,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:56:24,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:56:24,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:56:24,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:56:22" (1/3) ... [2020-10-23 19:56:24,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432c8cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:24, skipping insertion in model container [2020-10-23 19:56:24,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:22" (2/3) ... [2020-10-23 19:56:24,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432c8cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:24, skipping insertion in model container [2020-10-23 19:56:24,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:24" (3/3) ... [2020-10-23 19:56:24,398 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-10-23 19:56:24,414 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:56:24,421 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:56:24,436 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:56:24,461 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:56:24,461 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:56:24,461 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:56:24,462 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:56:24,462 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:56:24,462 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:56:24,462 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:56:24,462 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:56:24,485 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-10-23 19:56:24,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:56:24,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:24,506 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 19:56:24,507 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 19:56:24,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:24,513 INFO L82 PathProgramCache]: Analyzing trace with hash 236196398, now seen corresponding path program 1 times [2020-10-23 19:56:24,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:24,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976697769] [2020-10-23 19:56:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:24,625 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,410 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:56:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:56:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:25,685 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 19:56:25,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976697769] [2020-10-23 19:56:25,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:25,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:56:25,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062438084] [2020-10-23 19:56:25,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:56:25,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:25,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:56:25,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:56:25,713 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-10-23 19:56:27,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:27,508 INFO L93 Difference]: Finished difference Result 446 states and 535 transitions. [2020-10-23 19:56:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:56:27,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:56:27,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:27,530 INFO L225 Difference]: With dead ends: 446 [2020-10-23 19:56:27,531 INFO L226 Difference]: Without dead ends: 282 [2020-10-23 19:56:27,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:56:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-23 19:56:27,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-10-23 19:56:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-23 19:56:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 260 transitions. [2020-10-23 19:56:27,780 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 260 transitions. Word has length 159 [2020-10-23 19:56:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:27,781 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 260 transitions. [2020-10-23 19:56:27,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:56:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 260 transitions. [2020-10-23 19:56:27,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:56:27,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:27,786 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 19:56:27,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:56:27,787 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 19:56:27,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:27,788 INFO L82 PathProgramCache]: Analyzing trace with hash 141802603, now seen corresponding path program 1 times [2020-10-23 19:56:27,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:27,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988654182] [2020-10-23 19:56:27,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:27,793 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,317 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:56:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:56:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:56:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:28,433 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 19:56:28,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988654182] [2020-10-23 19:56:28,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:28,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:56:28,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949501777] [2020-10-23 19:56:28,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:56:28,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:28,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:56:28,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:56:28,437 INFO L87 Difference]: Start difference. First operand 240 states and 260 transitions. Second operand 4 states. [2020-10-23 19:56:29,459 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:56:30,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:30,503 INFO L93 Difference]: Finished difference Result 350 states and 394 transitions. [2020-10-23 19:56:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:56:30,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:56:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:30,514 INFO L225 Difference]: With dead ends: 350 [2020-10-23 19:56:30,514 INFO L226 Difference]: Without dead ends: 265 [2020-10-23 19:56:30,520 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 19:56:30,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-23 19:56:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-10-23 19:56:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-23 19:56:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 247 transitions. [2020-10-23 19:56:30,650 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 247 transitions. Word has length 160 [2020-10-23 19:56:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:30,654 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 247 transitions. [2020-10-23 19:56:30,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:56:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 247 transitions. [2020-10-23 19:56:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:56:30,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:30,660 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 19:56:30,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:56:30,661 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 19:56:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:30,662 INFO L82 PathProgramCache]: Analyzing trace with hash 984977045, now seen corresponding path program 1 times [2020-10-23 19:56:30,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:30,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294956718] [2020-10-23 19:56:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:30,667 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,192 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:31,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:56:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:56:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:56:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:56:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:31,363 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 19:56:31,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294956718] [2020-10-23 19:56:31,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:31,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:56:31,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746120233] [2020-10-23 19:56:31,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:56:31,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:31,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:56:31,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:56:31,366 INFO L87 Difference]: Start difference. First operand 230 states and 247 transitions. Second operand 10 states. [2020-10-23 19:56:32,017 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:32,494 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:56:32,891 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:56:33,290 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:33,681 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:34,070 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:35,266 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:56:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:37,798 INFO L93 Difference]: Finished difference Result 623 states and 728 transitions. [2020-10-23 19:56:37,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:56:37,805 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:56:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:37,813 INFO L225 Difference]: With dead ends: 623 [2020-10-23 19:56:37,813 INFO L226 Difference]: Without dead ends: 508 [2020-10-23 19:56:37,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:56:37,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-23 19:56:38,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 415. [2020-10-23 19:56:38,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-23 19:56:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 464 transitions. [2020-10-23 19:56:38,024 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 464 transitions. Word has length 173 [2020-10-23 19:56:38,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:38,024 INFO L481 AbstractCegarLoop]: Abstraction has 415 states and 464 transitions. [2020-10-23 19:56:38,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:56:38,025 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 464 transitions. [2020-10-23 19:56:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:56:38,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:38,029 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 19:56:38,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:56:38,029 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 19:56:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1913683563, now seen corresponding path program 1 times [2020-10-23 19:56:38,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:38,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187491104] [2020-10-23 19:56:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:38,036 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,518 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:38,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:56:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:56:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:56:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:56:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:38,695 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 19:56:38,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187491104] [2020-10-23 19:56:38,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:38,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:56:38,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96662819] [2020-10-23 19:56:38,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:56:38,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:38,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:56:38,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:56:38,699 INFO L87 Difference]: Start difference. First operand 415 states and 464 transitions. Second operand 9 states. [2020-10-23 19:56:39,450 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:41,578 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:41,995 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:42,415 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:42,851 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:43,227 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:43,599 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:43,978 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:44,955 INFO L93 Difference]: Finished difference Result 1092 states and 1322 transitions. [2020-10-23 19:56:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:56:44,956 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:56:44,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:44,969 INFO L225 Difference]: With dead ends: 1092 [2020-10-23 19:56:44,970 INFO L226 Difference]: Without dead ends: 792 [2020-10-23 19:56:44,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:56:44,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-10-23 19:56:45,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 693. [2020-10-23 19:56:45,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-23 19:56:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 799 transitions. [2020-10-23 19:56:45,350 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 799 transitions. Word has length 178 [2020-10-23 19:56:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:45,351 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 799 transitions. [2020-10-23 19:56:45,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:56:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 799 transitions. [2020-10-23 19:56:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:56:45,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:45,356 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 19:56:45,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:56:45,357 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 19:56:45,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:45,358 INFO L82 PathProgramCache]: Analyzing trace with hash -271309239, now seen corresponding path program 1 times [2020-10-23 19:56:45,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:45,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79689018] [2020-10-23 19:56:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:45,363 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:45,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:45,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:45,767 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:56:45,767 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:56:45,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:56:45,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:56:45 BoogieIcfgContainer [2020-10-23 19:56:45,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:56:45,809 INFO L168 Benchmark]: Toolchain (without parser) took 23728.46 ms. Allocated memory was 155.2 MB in the beginning and 406.8 MB in the end (delta: 251.7 MB). Free memory was 112.2 MB in the beginning and 206.7 MB in the end (delta: -94.5 MB). Peak memory consumption was 158.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:45,811 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 155.2 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:45,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.01 ms. Allocated memory is still 155.2 MB. Free memory was 111.6 MB in the beginning and 128.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:45,819 INFO L168 Benchmark]: Boogie Preprocessor took 113.81 ms. Allocated memory is still 155.2 MB. Free memory was 128.6 MB in the beginning and 124.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:45,820 INFO L168 Benchmark]: RCFGBuilder took 1497.69 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 124.7 MB in the beginning and 98.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 59.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:45,821 INFO L168 Benchmark]: TraceAbstraction took 21416.94 ms. Allocated memory was 186.6 MB in the beginning and 406.8 MB in the end (delta: 220.2 MB). Free memory was 98.2 MB in the beginning and 206.7 MB in the end (delta: -108.6 MB). Peak memory consumption was 112.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:45,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 155.2 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 686.01 ms. Allocated memory is still 155.2 MB. Free memory was 111.6 MB in the beginning and 128.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 113.81 ms. Allocated memory is still 155.2 MB. Free memory was 128.6 MB in the beginning and 124.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1497.69 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 124.7 MB in the beginning and 98.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 59.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21416.94 ms. Allocated memory was 186.6 MB in the beginning and 406.8 MB in the end (delta: 220.2 MB). Free memory was 98.2 MB in the beginning and 206.7 MB in the end (delta: -108.6 MB). Peak memory consumption was 112.1 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: [L51] int cleanupTimeShifts = 4; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; [L132] int retValue_acc ; [L133] int tmp ; [L137] FCALL select_helpers() [L138] FCALL select_features() [L139] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L139] RET, EXPR valid_product() [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L143] FCALL setup() [L144] CALL runTest() [L123] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND TRUE \read(tmp) [L545] CALL waterRise() [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 [L545] RET waterRise() [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___2)) [L569] tmp___1 = __VERIFIER_nondet_int() [L571] COND TRUE \read(tmp___1) [L573] CALL stopSystem() [L752] COND FALSE !(\read(pumpRunning)) [L759] systemActive = 0 [L573] RET stopSystem() [L580] CALL timeShift() [L606] COND FALSE !(\read(pumpRunning)) [L613] COND FALSE !(\read(systemActive)) [L621] CALL __utac_acc__Specification3_spec__1() [L889] int tmp ; [L890] int tmp___0 ; [L891] int tmp___1 ; [L895] CALL, EXPR isMethaneLevelCritical() [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); [L895] RET, EXPR isMethaneLevelCritical() [L895] tmp = isMethaneLevelCritical() [L897] COND FALSE !(\read(tmp)) [L901] CALL, EXPR getWaterLevel() [L879] int retValue_acc ; [L882] retValue_acc = waterLevel [L883] return (retValue_acc); [L901] RET, EXPR getWaterLevel() [L901] tmp___0 = getWaterLevel() [L903] COND TRUE tmp___0 == 2 [L905] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L905] RET, EXPR isPumpRunning() [L905] tmp___1 = isPumpRunning() [L907] COND FALSE !(\read(tmp___1)) [L911] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product16.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 622 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 934 SDtfs, 1313 SDslu, 1466 SDs, 0 SdLazy, 2772 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 269 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...