/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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:55:49,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:55:49,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:55:49,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:55:49,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:55:49,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:55:49,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:55:49,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:55:49,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:55:49,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:55:49,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:55:49,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:55:49,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:55:49,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:55:49,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:55:49,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:55:49,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:55:49,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:55:49,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:55:49,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:55:49,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:55:49,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:55:49,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:55:49,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:55:49,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:55:49,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:55:49,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:55:49,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:55:49,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:55:49,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:55:49,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:55:49,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:55:49,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:55:49,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:55:49,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:55:49,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:55:49,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:55:49,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:55:49,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:55:49,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:55:49,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:55:49,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:55:49,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:55:49,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:55:49,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:55:49,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:55:49,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:55:49,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:55:49,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:55:49,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:55:49,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:55:49,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:55:49,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:55:49,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:55:49,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:55:49,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:55:49,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:55:49,540 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:55:49,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:55:49,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:55:49,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:55:49,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:55:49,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:55:49,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:55:49,541 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:55:49,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:55:49,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:55:49,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:55:50,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:55:50,000 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:55:50,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-10-23 19:55:50,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622063cc1/a2a85d92c7ee4591a2318bb7d8597f37/FLAGeaf82d66b [2020-10-23 19:55:50,716 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:55:50,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-10-23 19:55:50,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622063cc1/a2a85d92c7ee4591a2318bb7d8597f37/FLAGeaf82d66b [2020-10-23 19:55:51,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622063cc1/a2a85d92c7ee4591a2318bb7d8597f37 [2020-10-23 19:55:51,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:55:51,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:55:51,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:51,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:55:51,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:55:51,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef2d614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51, skipping insertion in model container [2020-10-23 19:55:51,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:55:51,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:55:51,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:51,519 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:55:51,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:51,663 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:55:51,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51 WrapperNode [2020-10-23 19:55:51,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:51,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:55:51,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:55:51,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:55:51,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... [2020-10-23 19:55:51,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:55:51,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:55:51,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:55:51,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:55:51,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:55:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:55:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:55:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:55:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:55:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:55:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:55:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:55:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:55:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:55:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:55:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:55:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:55:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:55:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:55:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:55:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:55:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:55:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:55:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:55:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:55:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 19:55:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:55:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:55:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:55:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:55:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:55:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:55:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:55:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:55:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:55:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:55:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:55:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:55:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:55:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:55:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:55:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:55:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:55:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:55:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:55:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:55:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:55:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:55:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:55:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:55:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:55:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:55:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:55:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:55:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:55:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:55:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:55:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:55:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:55:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:55:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:55:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:55:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:55:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:55:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:55:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:55:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:55:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:55:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:55:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:55:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:55:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:55:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:55:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:55:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 19:55:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:55:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:55:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:55:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:55:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:55:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:55:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:55:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:55:53,252 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:55:53,252 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:55:53,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:53 BoogieIcfgContainer [2020-10-23 19:55:53,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:55:53,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:55:53,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:55:53,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:55:53,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:55:51" (1/3) ... [2020-10-23 19:55:53,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5502b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:53, skipping insertion in model container [2020-10-23 19:55:53,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:51" (2/3) ... [2020-10-23 19:55:53,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5502b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:53, skipping insertion in model container [2020-10-23 19:55:53,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:53" (3/3) ... [2020-10-23 19:55:53,263 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-10-23 19:55:53,275 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:55:53,280 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:55:53,293 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:55:53,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:55:53,317 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:55:53,317 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:55:53,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:55:53,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:55:53,317 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:55:53,317 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:55:53,317 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:55:53,342 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-10-23 19:55:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:55:53,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:53,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:53,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:53,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:53,385 INFO L82 PathProgramCache]: Analyzing trace with hash 929326269, now seen corresponding path program 1 times [2020-10-23 19:55:53,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:53,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314599155] [2020-10-23 19:55:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:53,466 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,461 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:54,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:55:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:55:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:54,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:54,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314599155] [2020-10-23 19:55:54,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:54,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:55:54,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650023943] [2020-10-23 19:55:54,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:55:54,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:54,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:55:54,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:54,650 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-10-23 19:55:56,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:56,035 INFO L93 Difference]: Finished difference Result 384 states and 459 transitions. [2020-10-23 19:55:56,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:55:56,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:55:56,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:56,052 INFO L225 Difference]: With dead ends: 384 [2020-10-23 19:55:56,052 INFO L226 Difference]: Without dead ends: 249 [2020-10-23 19:55:56,057 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 [2020-10-23 19:55:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-23 19:55:56,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 211. [2020-10-23 19:55:56,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-23 19:55:56,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 225 transitions. [2020-10-23 19:55:56,183 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 225 transitions. Word has length 159 [2020-10-23 19:55:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:56,184 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 225 transitions. [2020-10-23 19:55:56,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:55:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 225 transitions. [2020-10-23 19:55:56,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:55:56,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:56,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:56,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:55:56,189 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:56,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:56,190 INFO L82 PathProgramCache]: Analyzing trace with hash -806384479, now seen corresponding path program 1 times [2020-10-23 19:55:56,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:56,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400097833] [2020-10-23 19:55:56,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:56,194 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,643 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:56,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:55:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:55:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:55:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:56,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400097833] [2020-10-23 19:55:56,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:56,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:55:56,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93602009] [2020-10-23 19:55:56,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:55:56,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:56,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:55:56,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:55:56,754 INFO L87 Difference]: Start difference. First operand 211 states and 225 transitions. Second operand 4 states. [2020-10-23 19:55:57,550 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:58,254 INFO L93 Difference]: Finished difference Result 294 states and 326 transitions. [2020-10-23 19:55:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:55:58,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:55:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:58,259 INFO L225 Difference]: With dead ends: 294 [2020-10-23 19:55:58,260 INFO L226 Difference]: Without dead ends: 232 [2020-10-23 19:55:58,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:55:58,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-23 19:55:58,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 201. [2020-10-23 19:55:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-23 19:55:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 212 transitions. [2020-10-23 19:55:58,341 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 212 transitions. Word has length 160 [2020-10-23 19:55:58,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:58,342 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 212 transitions. [2020-10-23 19:55:58,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:55:58,342 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 212 transitions. [2020-10-23 19:55:58,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:55:58,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:58,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:58,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:55:58,345 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:58,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1960308462, now seen corresponding path program 1 times [2020-10-23 19:55:58,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:58,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296568572] [2020-10-23 19:55:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:58,350 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:58,902 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:58,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:58,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:58,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:58,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:59,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:59,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:59,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:55:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:59,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:55:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:55:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:59,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296568572] [2020-10-23 19:55:59,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:59,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:55:59,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961337380] [2020-10-23 19:55:59,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:55:59,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:59,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:55:59,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:55:59,125 INFO L87 Difference]: Start difference. First operand 201 states and 212 transitions. Second operand 10 states. [2020-10-23 19:55:59,787 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:00,267 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:56:00,662 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:56:01,042 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:01,418 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:01,793 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:03,048 INFO L93 Difference]: Finished difference Result 340 states and 388 transitions. [2020-10-23 19:56:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:56:03,051 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:56:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:03,055 INFO L225 Difference]: With dead ends: 340 [2020-10-23 19:56:03,055 INFO L226 Difference]: Without dead ends: 254 [2020-10-23 19:56:03,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:56:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-23 19:56:03,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 201. [2020-10-23 19:56:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-23 19:56:03,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 211 transitions. [2020-10-23 19:56:03,127 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 211 transitions. Word has length 173 [2020-10-23 19:56:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:03,127 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 211 transitions. [2020-10-23 19:56:03,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:56:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 211 transitions. [2020-10-23 19:56:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 19:56:03,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:03,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:56:03,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:56:03,131 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:56:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:03,132 INFO L82 PathProgramCache]: Analyzing trace with hash -2012766727, now seen corresponding path program 1 times [2020-10-23 19:56:03,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:03,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558945337] [2020-10-23 19:56:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:03,135 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,594 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:03,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:56:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:56:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 19:56:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 19:56:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:56:03,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558945337] [2020-10-23 19:56:03,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:03,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:56:03,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586623757] [2020-10-23 19:56:03,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:56:03,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:03,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:56:03,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:56:03,756 INFO L87 Difference]: Start difference. First operand 201 states and 211 transitions. Second operand 9 states. [2020-10-23 19:56:04,393 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:05,927 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:06,331 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:06,749 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:07,150 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:07,515 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:07,951 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:08,337 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:08,858 INFO L93 Difference]: Finished difference Result 432 states and 503 transitions. [2020-10-23 19:56:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:56:08,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-10-23 19:56:08,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:08,867 INFO L225 Difference]: With dead ends: 432 [2020-10-23 19:56:08,868 INFO L226 Difference]: Without dead ends: 346 [2020-10-23 19:56:08,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:56:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-23 19:56:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 276. [2020-10-23 19:56:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-23 19:56:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 298 transitions. [2020-10-23 19:56:09,005 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 298 transitions. Word has length 176 [2020-10-23 19:56:09,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:09,006 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 298 transitions. [2020-10-23 19:56:09,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:56:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 298 transitions. [2020-10-23 19:56:09,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 19:56:09,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:09,009 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] [2020-10-23 19:56:09,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:56:09,010 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:56:09,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:09,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1116949369, now seen corresponding path program 1 times [2020-10-23 19:56:09,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:09,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131222609] [2020-10-23 19:56:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:09,014 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:09,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:09,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:09,433 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:56:09,433 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:56:09,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:56:09,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:56:09 BoogieIcfgContainer [2020-10-23 19:56:09,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:56:09,472 INFO L168 Benchmark]: Toolchain (without parser) took 18430.91 ms. Allocated memory was 160.4 MB in the beginning and 440.4 MB in the end (delta: 280.0 MB). Free memory was 135.8 MB in the beginning and 359.9 MB in the end (delta: -224.1 MB). Peak memory consumption was 57.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:09,474 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:09,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.13 ms. Allocated memory is still 160.4 MB. Free memory was 135.1 MB in the beginning and 115.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:09,482 INFO L168 Benchmark]: Boogie Preprocessor took 148.23 ms. Allocated memory is still 160.4 MB. Free memory was 115.2 MB in the beginning and 111.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:09,483 INFO L168 Benchmark]: RCFGBuilder took 1441.43 ms. Allocated memory is still 160.4 MB. Free memory was 111.3 MB in the beginning and 79.7 MB in the end (delta: 31.6 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:09,484 INFO L168 Benchmark]: TraceAbstraction took 16213.54 ms. Allocated memory was 160.4 MB in the beginning and 440.4 MB in the end (delta: 280.0 MB). Free memory was 79.2 MB in the beginning and 359.9 MB in the end (delta: -280.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:09,494 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 160.4 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 613.13 ms. Allocated memory is still 160.4 MB. Free memory was 135.1 MB in the beginning and 115.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.23 ms. Allocated memory is still 160.4 MB. Free memory was 115.2 MB in the beginning and 111.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1441.43 ms. Allocated memory is still 160.4 MB. Free memory was 111.3 MB in the beginning and 79.7 MB in the end (delta: 31.6 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16213.54 ms. Allocated memory was 160.4 MB in the beginning and 440.4 MB in the end (delta: 280.0 MB). Free memory was 79.2 MB in the beginning and 359.9 MB in the end (delta: -280.7 MB). There was no memory consumed. 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: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L783] int cleanupTimeShifts = 4; [L856] int retValue_acc ; [L857] int tmp ; [L861] FCALL select_helpers() [L862] FCALL select_features() [L863] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L863] RET, EXPR valid_product() [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L867] FCALL setup() [L868] CALL runTest() [L850] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND TRUE \read(tmp___2) [L586] CALL startSystem() [L744] systemActive = 1 [L586] RET startSystem() [L599] CALL timeShift() [L623] COND FALSE !(\read(pumpRunning)) [L630] COND TRUE \read(systemActive) [L632] FCALL processEnvironment() [L638] CALL __utac_acc__Specification3_spec__1() [L750] int tmp ; [L751] int tmp___0 ; [L752] int tmp___1 ; [L756] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L756] RET, EXPR isMethaneLevelCritical() [L756] tmp = isMethaneLevelCritical() [L758] COND FALSE !(\read(tmp)) [L762] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L762] RET, EXPR getWaterLevel() [L762] tmp___0 = getWaterLevel() [L764] COND TRUE tmp___0 == 2 [L766] CALL, EXPR isPumpRunning() [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); [L766] RET, EXPR isPumpRunning() [L766] tmp___1 = isPumpRunning() [L768] COND FALSE !(\read(tmp___1)) [L772] CALL __automaton_fail() [L170] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product10.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 604 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 997 SDslu, 1219 SDs, 0 SdLazy, 1889 SolverSat, 307 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...