/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_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:01:37,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:01:37,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:01:37,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:01:37,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:01:37,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:01:37,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:01:37,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:01:37,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:01:37,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:01:37,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:01:37,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:01:37,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:01:37,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:01:37,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:01:37,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:01:37,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:01:37,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:01:37,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:01:37,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:01:37,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:01:37,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:01:37,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:01:37,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:01:37,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:01:37,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:01:37,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:01:37,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:01:37,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:01:37,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:01:37,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:01:37,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:01:37,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:01:37,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:01:37,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:01:37,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:01:37,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:01:37,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:01:37,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:01:37,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:01:37,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:01:37,442 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 00:01:37,463 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:01:37,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:01:37,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:01:37,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:01:37,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:01:37,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:01:37,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:01:37,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:01:37,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:01:37,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:01:37,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:01:37,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:01:37,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:01:37,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:01:37,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:01:37,471 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:01:37,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:01:37,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:01:37,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:37,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:01:37,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:01:37,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:01:37,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:01:37,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:01:37,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:01:37,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:01:37,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:01:37,942 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:01:37,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2020-11-07 00:01:38,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7262301a/af6cc40b1bcd41058f3c733bb8b6032a/FLAGc2be4881b [2020-11-07 00:01:38,696 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:01:38,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2020-11-07 00:01:38,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7262301a/af6cc40b1bcd41058f3c733bb8b6032a/FLAGc2be4881b [2020-11-07 00:01:39,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7262301a/af6cc40b1bcd41058f3c733bb8b6032a [2020-11-07 00:01:39,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:01:39,013 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:01:39,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:39,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:01:39,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:01:39,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a648592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39, skipping insertion in model container [2020-11-07 00:01:39,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:01:39,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:01:39,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:39,500 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:01:39,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:39,614 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:01:39,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39 WrapperNode [2020-11-07 00:01:39,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:39,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:01:39,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:01:39,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:01:39,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (1/1) ... [2020-11-07 00:01:39,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:01:39,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:01:39,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:01:39,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:01:39,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (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 00:01:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:01:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:01:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:01:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:01:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:01:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:01:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:01:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:01:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:01:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:01:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:01:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:01:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:01:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:01:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:01:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:01:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:01:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:01:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:01:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:01:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:01:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:01:39,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:01:39,826 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:01:39,826 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:01:39,826 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:01:39,826 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:39,826 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:01:39,826 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:01:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:01:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:01:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:01:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:01:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:01:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:01:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:01:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:01:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:01:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:01:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:01:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:01:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:01:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:01:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:01:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:01:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:01:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:01:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:01:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:01:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:01:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:01:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:01:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:01:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:01:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:01:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:01:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:01:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:01:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:01:41,187 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:01:41,188 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:01:41,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:41 BoogieIcfgContainer [2020-11-07 00:01:41,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:01:41,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:01:41,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:01:41,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:01:41,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:01:39" (1/3) ... [2020-11-07 00:01:41,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5503a48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:41, skipping insertion in model container [2020-11-07 00:01:41,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:39" (2/3) ... [2020-11-07 00:01:41,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5503a48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:41, skipping insertion in model container [2020-11-07 00:01:41,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:41" (3/3) ... [2020-11-07 00:01:41,204 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2020-11-07 00:01:41,220 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:01:41,225 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:01:41,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:01:41,272 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:01:41,273 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:01:41,273 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:01:41,273 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:01:41,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:01:41,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:01:41,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:01:41,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:01:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-11-07 00:01:41,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:01:41,324 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:41,325 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 00:01:41,326 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 00:01:41,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:41,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1334260818, now seen corresponding path program 1 times [2020-11-07 00:01:41,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:41,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734042116] [2020-11-07 00:01:41,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:41,422 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,109 WARN L194 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:01:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:42,341 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 00:01:42,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734042116] [2020-11-07 00:01:42,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:42,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:01:42,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959348263] [2020-11-07 00:01:42,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:01:42,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:42,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:01:42,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:42,384 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-11-07 00:01:44,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:44,003 INFO L93 Difference]: Finished difference Result 454 states and 538 transitions. [2020-11-07 00:01:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:01:44,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:01:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:44,022 INFO L225 Difference]: With dead ends: 454 [2020-11-07 00:01:44,022 INFO L226 Difference]: Without dead ends: 285 [2020-11-07 00:01:44,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-11-07 00:01:44,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 245. [2020-11-07 00:01:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-11-07 00:01:44,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2020-11-07 00:01:44,205 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 159 [2020-11-07 00:01:44,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:44,206 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2020-11-07 00:01:44,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:01:44,206 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2020-11-07 00:01:44,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:01:44,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:44,212 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 00:01:44,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:01:44,213 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 00:01:44,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:44,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1144962823, now seen corresponding path program 1 times [2020-11-07 00:01:44,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:44,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135346012] [2020-11-07 00:01:44,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:44,219 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,669 WARN L194 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:44,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:01:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:01:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:01:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:44,812 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 00:01:44,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135346012] [2020-11-07 00:01:44,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:44,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:01:44,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111635037] [2020-11-07 00:01:44,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:01:44,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:44,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:01:44,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:01:44,816 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 4 states. [2020-11-07 00:01:45,531 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:46,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:46,382 INFO L93 Difference]: Finished difference Result 364 states and 405 transitions. [2020-11-07 00:01:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:01:46,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:01:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:46,391 INFO L225 Difference]: With dead ends: 364 [2020-11-07 00:01:46,392 INFO L226 Difference]: Without dead ends: 268 [2020-11-07 00:01:46,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:01:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-11-07 00:01:46,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 235. [2020-11-07 00:01:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-07 00:01:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 250 transitions. [2020-11-07 00:01:46,503 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 250 transitions. Word has length 160 [2020-11-07 00:01:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:46,504 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 250 transitions. [2020-11-07 00:01:46,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:01:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 250 transitions. [2020-11-07 00:01:46,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:01:46,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:46,507 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] [2020-11-07 00:01:46,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:01:46,508 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 00:01:46,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:46,508 INFO L82 PathProgramCache]: Analyzing trace with hash -835121941, now seen corresponding path program 1 times [2020-11-07 00:01:46,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:46,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321236110] [2020-11-07 00:01:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:46,512 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:46,945 WARN L194 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:46,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:01:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:01:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:01:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:01:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,174 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 00:01:47,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321236110] [2020-11-07 00:01:47,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:47,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:01:47,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638735232] [2020-11-07 00:01:47,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:01:47,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:47,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:01:47,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:01:47,180 INFO L87 Difference]: Start difference. First operand 235 states and 250 transitions. Second operand 10 states. [2020-11-07 00:01:47,789 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:48,160 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:01:48,495 WARN L194 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:01:48,784 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:49,075 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:49,340 WARN L194 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:50,738 INFO L93 Difference]: Finished difference Result 410 states and 467 transitions. [2020-11-07 00:01:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:50,738 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:01:50,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:50,744 INFO L225 Difference]: With dead ends: 410 [2020-11-07 00:01:50,744 INFO L226 Difference]: Without dead ends: 290 [2020-11-07 00:01:50,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:01:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-07 00:01:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 235. [2020-11-07 00:01:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-07 00:01:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 249 transitions. [2020-11-07 00:01:50,876 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 249 transitions. Word has length 173 [2020-11-07 00:01:50,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:50,878 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 249 transitions. [2020-11-07 00:01:50,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:01:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 249 transitions. [2020-11-07 00:01:50,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-11-07 00:01:50,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:50,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:50,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:01:50,881 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 00:01:50,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:50,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1145126178, now seen corresponding path program 1 times [2020-11-07 00:01:50,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:50,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773112053] [2020-11-07 00:01:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:50,890 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,281 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:51,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:01:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:01:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-11-07 00:01:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-11-07 00:01:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 00:01:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,482 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 00:01:51,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773112053] [2020-11-07 00:01:51,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:51,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:01:51,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965474430] [2020-11-07 00:01:51,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:01:51,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:51,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:01:51,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:01:51,485 INFO L87 Difference]: Start difference. First operand 235 states and 249 transitions. Second operand 10 states. [2020-11-07 00:01:52,059 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:53,782 WARN L194 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:54,133 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:54,510 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:54,848 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:55,153 WARN L194 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:55,458 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:55,754 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:56,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:56,778 INFO L93 Difference]: Finished difference Result 632 states and 774 transitions. [2020-11-07 00:01:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 00:01:56,779 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-11-07 00:01:56,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:56,784 INFO L225 Difference]: With dead ends: 632 [2020-11-07 00:01:56,784 INFO L226 Difference]: Without dead ends: 512 [2020-11-07 00:01:56,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-11-07 00:01:56,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-11-07 00:01:56,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 346. [2020-11-07 00:01:56,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-11-07 00:01:56,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 377 transitions. [2020-11-07 00:01:56,948 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 377 transitions. Word has length 181 [2020-11-07 00:01:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:56,948 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 377 transitions. [2020-11-07 00:01:56,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:01:56,949 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 377 transitions. [2020-11-07 00:01:56,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-11-07 00:01:56,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:56,952 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:56,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:01:56,952 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 00:01:56,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:56,953 INFO L82 PathProgramCache]: Analyzing trace with hash 659202534, now seen corresponding path program 1 times [2020-11-07 00:01:56,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:56,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112526265] [2020-11-07 00:01:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:56,957 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,253 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:57,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 00:01:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:01:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:01:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:01:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-11-07 00:01:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 00:01:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-11-07 00:01:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:57,477 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 00:01:57,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112526265] [2020-11-07 00:01:57,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:57,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:01:57,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725223] [2020-11-07 00:01:57,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:01:57,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:57,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:01:57,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:01:57,480 INFO L87 Difference]: Start difference. First operand 346 states and 377 transitions. Second operand 7 states. [2020-11-07 00:01:58,026 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:58,960 INFO L93 Difference]: Finished difference Result 569 states and 657 transitions. [2020-11-07 00:01:58,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:58,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-11-07 00:01:58,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:58,963 INFO L225 Difference]: With dead ends: 569 [2020-11-07 00:01:58,964 INFO L226 Difference]: Without dead ends: 338 [2020-11-07 00:01:58,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:01:58,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-11-07 00:01:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 272. [2020-11-07 00:01:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-07 00:01:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 287 transitions. [2020-11-07 00:01:59,091 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 287 transitions. Word has length 191 [2020-11-07 00:01:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:59,091 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 287 transitions. [2020-11-07 00:01:59,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:01:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 287 transitions. [2020-11-07 00:01:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-11-07 00:01:59,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:59,094 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, 1, 1, 1] [2020-11-07 00:01:59,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:01:59,095 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 00:01:59,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:59,096 INFO L82 PathProgramCache]: Analyzing trace with hash 616839429, now seen corresponding path program 1 times [2020-11-07 00:01:59,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:59,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846948149] [2020-11-07 00:01:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:59,099 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:59,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:59,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:59,456 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:01:59,456 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:01:59,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:01:59,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:01:59 BoogieIcfgContainer [2020-11-07 00:01:59,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:01:59,496 INFO L168 Benchmark]: Toolchain (without parser) took 20486.09 ms. Allocated memory was 156.2 MB in the beginning and 489.7 MB in the end (delta: 333.4 MB). Free memory was 132.0 MB in the beginning and 221.0 MB in the end (delta: -89.0 MB). Peak memory consumption was 244.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:59,497 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:01:59,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.97 ms. Allocated memory is still 156.2 MB. Free memory was 131.4 MB in the beginning and 110.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:59,503 INFO L168 Benchmark]: Boogie Preprocessor took 127.09 ms. Allocated memory is still 156.2 MB. Free memory was 110.8 MB in the beginning and 138.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:59,504 INFO L168 Benchmark]: RCFGBuilder took 1449.44 ms. Allocated memory is still 156.2 MB. Free memory was 138.5 MB in the beginning and 90.6 MB in the end (delta: 47.8 MB). Peak memory consumption was 61.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:59,505 INFO L168 Benchmark]: TraceAbstraction took 18297.47 ms. Allocated memory was 156.2 MB in the beginning and 489.7 MB in the end (delta: 333.4 MB). Free memory was 90.6 MB in the beginning and 221.0 MB in the end (delta: -130.3 MB). Peak memory consumption was 203.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:59,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 600.97 ms. Allocated memory is still 156.2 MB. Free memory was 131.4 MB in the beginning and 110.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 127.09 ms. Allocated memory is still 156.2 MB. Free memory was 110.8 MB in the beginning and 138.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1449.44 ms. Allocated memory is still 156.2 MB. Free memory was 138.5 MB in the beginning and 90.6 MB in the end (delta: 47.8 MB). Peak memory consumption was 61.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18297.47 ms. Allocated memory was 156.2 MB in the beginning and 489.7 MB in the end (delta: 333.4 MB). Free memory was 90.6 MB in the beginning and 221.0 MB in the end (delta: -130.3 MB). Peak memory consumption was 203.1 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: [L42] int cleanupTimeShifts = 4; [L186] int waterLevel = 1; [L187] int methaneLevelCritical = 0; [L444] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] 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() [L834] int splverifierCounter ; [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; [L838] int tmp___2 ; [L841] splverifierCounter = 0 [L843] COND TRUE 1 [L845] COND TRUE splverifierCounter < 4 [L851] tmp = __VERIFIER_nondet_int() [L853] COND TRUE \read(tmp) [L855] CALL waterRise() [L204] COND TRUE waterLevel < 2 [L205] waterLevel = waterLevel + 1 [L855] RET waterRise() [L861] tmp___0 = __VERIFIER_nondet_int() [L863] COND FALSE !(\read(tmp___0)) [L871] tmp___2 = __VERIFIER_nondet_int() [L873] COND TRUE \read(tmp___2) [L875] CALL startSystem() [L828] systemActive = 1 [L875] RET startSystem() [L888] CALL timeShift() [L662] COND FALSE !(\read(pumpRunning)) [L669] COND TRUE \read(systemActive) [L671] CALL processEnvironment() [L691] int tmp ; [L694] COND FALSE !(\read(pumpRunning)) [L709] FCALL processEnvironment__wrappee__base() [L671] RET processEnvironment() [L677] CALL __utac_acc__Specification3_spec__1() [L901] int tmp ; [L902] int tmp___0 ; [L903] int tmp___1 ; [L907] CALL, EXPR isMethaneLevelCritical() [L225] int retValue_acc ; [L228] retValue_acc = methaneLevelCritical [L229] return (retValue_acc); [L907] RET, EXPR isMethaneLevelCritical() [L907] tmp = isMethaneLevelCritical() [L909] COND FALSE !(\read(tmp)) [L913] CALL, EXPR getWaterLevel() [L257] int retValue_acc ; [L260] retValue_acc = waterLevel [L261] return (retValue_acc); [L913] RET, EXPR getWaterLevel() [L913] tmp___0 = getWaterLevel() [L915] COND TRUE tmp___0 == 2 [L917] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L917] RET, EXPR isPumpRunning() [L917] tmp___1 = isPumpRunning() [L919] COND FALSE !(\read(tmp___1)) [L923] CALL __automaton_fail() [L645] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product26.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 635 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1089 SDtfs, 1952 SDslu, 1563 SDs, 0 SdLazy, 2703 SolverSat, 551 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 360 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...