/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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:02:22,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:02:22,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:02:22,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:02:22,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:02:22,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:02:22,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:02:22,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:02:22,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:02:22,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:02:22,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:02:22,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:02:22,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:02:22,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:02:22,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:02:22,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:02:22,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:02:22,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:02:22,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:02:22,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:02:22,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:02:22,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:02:22,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:02:22,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:02:22,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:02:22,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:02:22,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:02:22,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:02:22,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:02:22,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:02:22,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:02:22,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:02:22,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:02:22,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:02:22,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:02:22,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:02:22,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:02:22,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:02:22,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:02:22,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:02:22,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:02:22,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:02:22,999 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:02:23,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:02:23,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:02:23,004 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:02:23,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:02:23,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:02:23,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:02:23,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:02:23,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:02:23,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:02:23,007 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:02:23,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:02:23,007 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:02:23,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:02:23,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:02:23,008 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:02:23,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:02:23,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:02:23,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:23,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:02:23,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:02:23,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:02:23,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:02:23,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:02:23,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:02:23,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:02:23,460 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:02:23,461 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:02:23,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-11-07 00:02:23,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f98a78c/688795ec508048649255f4c68f468d33/FLAG6b507a006 [2020-11-07 00:02:24,220 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:02:24,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-11-07 00:02:24,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f98a78c/688795ec508048649255f4c68f468d33/FLAG6b507a006 [2020-11-07 00:02:24,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f98a78c/688795ec508048649255f4c68f468d33 [2020-11-07 00:02:24,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:02:24,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:02:24,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:24,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:02:24,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:02:24,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:24" (1/1) ... [2020-11-07 00:02:24,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228a6f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:24, skipping insertion in model container [2020-11-07 00:02:24,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:24" (1/1) ... [2020-11-07 00:02:24,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:02:24,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:02:25,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:25,052 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:02:25,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:25,200 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:02:25,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25 WrapperNode [2020-11-07 00:02:25,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:25,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:02:25,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:02:25,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:02:25,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (1/1) ... [2020-11-07 00:02:25,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (1/1) ... [2020-11-07 00:02:25,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (1/1) ... [2020-11-07 00:02:25,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (1/1) ... [2020-11-07 00:02:25,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (1/1) ... [2020-11-07 00:02:25,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (1/1) ... [2020-11-07 00:02:25,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (1/1) ... [2020-11-07 00:02:25,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:25,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:25,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:25,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:25,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (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 [2020-11-07 00:02:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:02:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:02:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:02:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:02:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:27,009 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:27,009 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:27,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:27 BoogieIcfgContainer [2020-11-07 00:02:27,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:27,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:27,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:27,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:27,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:02:24" (1/3) ... [2020-11-07 00:02:27,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a694b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:27, skipping insertion in model container [2020-11-07 00:02:27,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:25" (2/3) ... [2020-11-07 00:02:27,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a694b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:27, skipping insertion in model container [2020-11-07 00:02:27,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:27" (3/3) ... [2020-11-07 00:02:27,021 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-11-07 00:02:27,037 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:27,042 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:27,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:27,078 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:27,078 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:27,078 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:27,079 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:27,079 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:27,079 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:27,079 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:27,079 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:27,104 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-11-07 00:02:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:27,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:27,125 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] [2020-11-07 00:02:27,125 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]=== [2020-11-07 00:02:27,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:27,132 INFO L82 PathProgramCache]: Analyzing trace with hash -194274368, now seen corresponding path program 1 times [2020-11-07 00:02:27,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:27,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608831798] [2020-11-07 00:02:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:27,215 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,230 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:28,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:28,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608831798] [2020-11-07 00:02:28,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:28,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:28,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892200210] [2020-11-07 00:02:28,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:28,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:28,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:28,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:28,443 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2020-11-07 00:02:30,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:30,767 INFO L93 Difference]: Finished difference Result 507 states and 599 transitions. [2020-11-07 00:02:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:30,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:30,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:30,800 INFO L225 Difference]: With dead ends: 507 [2020-11-07 00:02:30,800 INFO L226 Difference]: Without dead ends: 313 [2020-11-07 00:02:30,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-11-07 00:02:31,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 270. [2020-11-07 00:02:31,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-11-07 00:02:31,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2020-11-07 00:02:31,014 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 159 [2020-11-07 00:02:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:31,017 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2020-11-07 00:02:31,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2020-11-07 00:02:31,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:31,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:31,034 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] [2020-11-07 00:02:31,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:31,034 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]=== [2020-11-07 00:02:31,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:31,038 INFO L82 PathProgramCache]: Analyzing trace with hash 385989418, now seen corresponding path program 1 times [2020-11-07 00:02:31,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:31,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101464748] [2020-11-07 00:02:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:31,050 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,809 WARN L194 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:31,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:31,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101464748] [2020-11-07 00:02:31,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:31,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:31,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170194847] [2020-11-07 00:02:31,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:31,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:31,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:31,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:31,912 INFO L87 Difference]: Start difference. First operand 270 states and 292 transitions. Second operand 4 states. [2020-11-07 00:02:33,107 WARN L194 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:34,787 INFO L93 Difference]: Finished difference Result 412 states and 460 transitions. [2020-11-07 00:02:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:34,790 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:34,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:34,794 INFO L225 Difference]: With dead ends: 412 [2020-11-07 00:02:34,794 INFO L226 Difference]: Without dead ends: 296 [2020-11-07 00:02:34,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:02:34,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-07 00:02:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 260. [2020-11-07 00:02:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-11-07 00:02:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 279 transitions. [2020-11-07 00:02:34,928 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 279 transitions. Word has length 160 [2020-11-07 00:02:34,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:34,928 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 279 transitions. [2020-11-07 00:02:34,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 279 transitions. [2020-11-07 00:02:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:02:34,931 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:34,932 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] [2020-11-07 00:02:34,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:34,932 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]=== [2020-11-07 00:02:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:34,933 INFO L82 PathProgramCache]: Analyzing trace with hash 209596061, now seen corresponding path program 1 times [2020-11-07 00:02:34,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:34,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109680403] [2020-11-07 00:02:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:34,937 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,763 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:35,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:02:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:35,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:35,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109680403] [2020-11-07 00:02:35,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:35,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:35,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666997486] [2020-11-07 00:02:35,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:35,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:35,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:35,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:35,963 INFO L87 Difference]: Start difference. First operand 260 states and 279 transitions. Second operand 9 states. [2020-11-07 00:02:36,928 WARN L194 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:37,739 WARN L194 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:38,424 WARN L194 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:02:39,122 WARN L194 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:39,788 WARN L194 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:40,468 WARN L194 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:42,262 WARN L194 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:45,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:45,971 INFO L93 Difference]: Finished difference Result 693 states and 789 transitions. [2020-11-07 00:02:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:02:45,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:02:45,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:45,977 INFO L225 Difference]: With dead ends: 693 [2020-11-07 00:02:45,977 INFO L226 Difference]: Without dead ends: 548 [2020-11-07 00:02:45,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:02:45,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-11-07 00:02:46,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 467. [2020-11-07 00:02:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-11-07 00:02:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 516 transitions. [2020-11-07 00:02:46,243 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 516 transitions. Word has length 169 [2020-11-07 00:02:46,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:46,244 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 516 transitions. [2020-11-07 00:02:46,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 516 transitions. [2020-11-07 00:02:46,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:02:46,250 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:46,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:46,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:46,251 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]=== [2020-11-07 00:02:46,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:46,251 INFO L82 PathProgramCache]: Analyzing trace with hash 247885752, now seen corresponding path program 1 times [2020-11-07 00:02:46,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:46,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645129583] [2020-11-07 00:02:46,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:46,259 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,019 WARN L194 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:47,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:02:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:02:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:02:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:02:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:47,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645129583] [2020-11-07 00:02:47,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:47,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:47,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471219695] [2020-11-07 00:02:47,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:47,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:47,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:47,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:47,179 INFO L87 Difference]: Start difference. First operand 467 states and 516 transitions. Second operand 6 states. [2020-11-07 00:02:48,161 WARN L194 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:51,144 WARN L194 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:52,294 INFO L93 Difference]: Finished difference Result 1175 states and 1366 transitions. [2020-11-07 00:02:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:02:52,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-11-07 00:02:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:52,302 INFO L225 Difference]: With dead ends: 1175 [2020-11-07 00:02:52,302 INFO L226 Difference]: Without dead ends: 823 [2020-11-07 00:02:52,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:02:52,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2020-11-07 00:02:52,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 705. [2020-11-07 00:02:52,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-11-07 00:02:52,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 778 transitions. [2020-11-07 00:02:52,597 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 778 transitions. Word has length 177 [2020-11-07 00:02:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:52,597 INFO L481 AbstractCegarLoop]: Abstraction has 705 states and 778 transitions. [2020-11-07 00:02:52,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:02:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 778 transitions. [2020-11-07 00:02:52,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:52,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:52,601 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] [2020-11-07 00:02:52,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:52,601 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]=== [2020-11-07 00:02:52,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:52,602 INFO L82 PathProgramCache]: Analyzing trace with hash 84091940, now seen corresponding path program 1 times [2020-11-07 00:02:52,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:52,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383120255] [2020-11-07 00:02:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:52,605 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,251 WARN L194 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:53,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:53,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383120255] [2020-11-07 00:02:53,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:53,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:53,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692760004] [2020-11-07 00:02:53,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:53,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:53,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:53,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:53,414 INFO L87 Difference]: Start difference. First operand 705 states and 778 transitions. Second operand 9 states. [2020-11-07 00:02:54,353 WARN L194 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:56,776 WARN L194 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:57,488 WARN L194 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:58,278 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:59,074 WARN L194 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:59,704 WARN L194 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:00,397 WARN L194 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:01,083 WARN L194 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:03,609 INFO L93 Difference]: Finished difference Result 1819 states and 2108 transitions. [2020-11-07 00:03:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:03:03,610 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:03:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:03,618 INFO L225 Difference]: With dead ends: 1819 [2020-11-07 00:03:03,618 INFO L226 Difference]: Without dead ends: 1229 [2020-11-07 00:03:03,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:03:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-11-07 00:03:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1146. [2020-11-07 00:03:04,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1146 states. [2020-11-07 00:03:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1281 transitions. [2020-11-07 00:03:04,100 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1281 transitions. Word has length 178 [2020-11-07 00:03:04,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:04,100 INFO L481 AbstractCegarLoop]: Abstraction has 1146 states and 1281 transitions. [2020-11-07 00:03:04,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:04,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1281 transitions. [2020-11-07 00:03:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:04,104 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:04,104 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] [2020-11-07 00:03:04,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:04,105 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]=== [2020-11-07 00:03:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:04,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1944397624, now seen corresponding path program 1 times [2020-11-07 00:03:04,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:04,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665452327] [2020-11-07 00:03:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:04,109 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:04,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:04,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:04,488 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:04,488 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:04,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:03:04,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:04 BoogieIcfgContainer [2020-11-07 00:03:04,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:04,526 INFO L168 Benchmark]: Toolchain (without parser) took 39978.17 ms. Allocated memory was 160.4 MB in the beginning and 402.7 MB in the end (delta: 242.2 MB). Free memory was 136.5 MB in the beginning and 353.9 MB in the end (delta: -217.4 MB). Peak memory consumption was 245.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:04,527 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 108.2 MB in the beginning and 108.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:04,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.62 ms. Allocated memory is still 160.4 MB. Free memory was 135.8 MB in the beginning and 142.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:04,528 INFO L168 Benchmark]: Boogie Preprocessor took 158.49 ms. Allocated memory is still 160.4 MB. Free memory was 142.4 MB in the beginning and 138.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:04,529 INFO L168 Benchmark]: RCFGBuilder took 1646.96 ms. Allocated memory is still 160.4 MB. Free memory was 138.6 MB in the beginning and 120.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:04,530 INFO L168 Benchmark]: TraceAbstraction took 37510.46 ms. Allocated memory was 160.4 MB in the beginning and 402.7 MB in the end (delta: 242.2 MB). Free memory was 120.0 MB in the beginning and 353.9 MB in the end (delta: -233.9 MB). Peak memory consumption was 228.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:04,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 108.2 MB in the beginning and 108.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 643.62 ms. Allocated memory is still 160.4 MB. Free memory was 135.8 MB in the beginning and 142.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.49 ms. Allocated memory is still 160.4 MB. Free memory was 142.4 MB in the beginning and 138.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1646.96 ms. Allocated memory is still 160.4 MB. Free memory was 138.6 MB in the beginning and 120.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37510.46 ms. Allocated memory was 160.4 MB in the beginning and 402.7 MB in the end (delta: 242.2 MB). Free memory was 120.0 MB in the beginning and 353.9 MB in the end (delta: -233.9 MB). Peak memory consumption was 228.5 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: [L42] int cleanupTimeShifts = 4; [L361] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L599] int pumpRunning = 0; [L600] int systemActive = 1; [L851] int waterLevel = 1; [L852] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L785] int splverifierCounter ; [L786] int tmp ; [L787] int tmp___0 ; [L788] int tmp___1 ; [L789] int tmp___2 ; [L792] splverifierCounter = 0 [L794] COND TRUE 1 [L796] COND TRUE splverifierCounter < 4 [L802] tmp = __VERIFIER_nondet_int() [L804] COND TRUE \read(tmp) [L806] CALL waterRise() [L869] COND TRUE waterLevel < 2 [L870] waterLevel = waterLevel + 1 [L806] RET waterRise() [L812] tmp___0 = __VERIFIER_nondet_int() [L814] COND FALSE !(\read(tmp___0)) [L822] tmp___2 = __VERIFIER_nondet_int() [L824] COND FALSE !(\read(tmp___2)) [L828] tmp___1 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___1) [L832] CALL stopSystem() [L772] COND FALSE !(\read(pumpRunning)) [L779] systemActive = 0 [L832] RET stopSystem() [L839] CALL timeShift() [L606] COND FALSE !(\read(pumpRunning)) [L613] COND FALSE !(\read(systemActive)) [L621] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L165] CALL, EXPR isMethaneLevelCritical() [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L175] CALL, EXPR isPumpRunning() [L705] int retValue_acc ; [L708] retValue_acc = pumpRunning [L709] return (retValue_acc); [L175] RET, EXPR isPumpRunning() [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) [L181] CALL __automaton_fail() [L150] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product43.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 640 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 30.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1289 SDtfs, 1887 SDslu, 1582 SDs, 0 SdLazy, 3573 SolverSat, 622 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 14.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 361 StatesRemovedByMinimization, 5 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...