/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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:00:38,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:00:38,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:00:38,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:00:38,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:00:38,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:00:38,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:00:38,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:00:38,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:00:38,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:00:38,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:00:38,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:00:38,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:00:38,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:00:38,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:00:38,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:00:38,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:00:38,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:00:38,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:00:38,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:00:38,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:00:38,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:00:38,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:00:38,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:00:38,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:00:38,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:00:38,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:00:38,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:00:38,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:00:38,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:00:38,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:00:38,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:00:38,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:00:38,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:00:38,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:00:38,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:00:38,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:00:38,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:00:38,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:00:38,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:00:38,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:00:39,000 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 00:00:39,038 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:00:39,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:00:39,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:00:39,043 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:00:39,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:00:39,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:00:39,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:00:39,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:00:39,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:00:39,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:00:39,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:00:39,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:00:39,049 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:00:39,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:00:39,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:00:39,050 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:00:39,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:00:39,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:00:39,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:00:39,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:00:39,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:00:39,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:00:39,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:00:39,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:00:39,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:00:39,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:00:39,509 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:00:39,510 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:00:39,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-11-07 00:00:39,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f905ba586/1e036e7af9d84ec580e3a99b5f690f0f/FLAG6ae09760b [2020-11-07 00:00:40,256 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:00:40,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-11-07 00:00:40,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f905ba586/1e036e7af9d84ec580e3a99b5f690f0f/FLAG6ae09760b [2020-11-07 00:00:40,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f905ba586/1e036e7af9d84ec580e3a99b5f690f0f [2020-11-07 00:00:40,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:00:40,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:00:40,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:40,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:00:40,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:00:40,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:40" (1/1) ... [2020-11-07 00:00:40,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1bba0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:40, skipping insertion in model container [2020-11-07 00:00:40,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:40" (1/1) ... [2020-11-07 00:00:40,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:00:40,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:00:40,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:40,997 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:00:41,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:41,233 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:00:41,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41 WrapperNode [2020-11-07 00:00:41,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:41,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:00:41,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:00:41,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:00:41,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (1/1) ... [2020-11-07 00:00:41,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (1/1) ... [2020-11-07 00:00:41,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (1/1) ... [2020-11-07 00:00:41,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (1/1) ... [2020-11-07 00:00:41,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (1/1) ... [2020-11-07 00:00:41,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (1/1) ... [2020-11-07 00:00:41,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (1/1) ... [2020-11-07 00:00:41,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:00:41,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:00:41,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:00:41,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:00:41,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (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 00:00:41,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:00:41,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:00:41,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:41,495 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:00:41,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:41,496 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:00:41,496 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:00:41,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:00:41,496 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:00:41,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:00:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:00:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:00:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:00:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:00:41,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:41,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:41,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:00:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:00:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:00:41,500 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:00:41,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:00:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-11-07 00:00:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:00:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:00:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:00:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:00:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:00:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:00:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:00:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:00:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:00:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:00:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:00:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:00:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:00:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:00:41,506 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:00:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:00:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:00:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:00:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:00:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:00:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:00:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:00:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:00:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:00:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:00:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:00:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:00:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:00:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:00:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:00:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:00:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:00:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:00:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:00:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:00:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:00:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:00:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:00:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:00:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-11-07 00:00:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:00:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:00:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:00:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:00:42,869 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:00:42,869 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:00:42,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:42 BoogieIcfgContainer [2020-11-07 00:00:42,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:00:42,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:00:42,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:00:42,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:00:42,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:00:40" (1/3) ... [2020-11-07 00:00:42,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ae29c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:42, skipping insertion in model container [2020-11-07 00:00:42,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:41" (2/3) ... [2020-11-07 00:00:42,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ae29c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:42, skipping insertion in model container [2020-11-07 00:00:42,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:42" (3/3) ... [2020-11-07 00:00:42,891 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-11-07 00:00:42,912 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:00:42,917 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:00:42,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:00:42,955 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:00:42,955 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:00:42,955 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:00:42,955 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:00:42,955 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:00:42,956 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:00:42,956 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:00:42,956 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:00:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-11-07 00:00:43,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:00:43,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:43,001 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 00:00:43,002 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 00:00:43,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:43,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1931328131, now seen corresponding path program 1 times [2020-11-07 00:00:43,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:43,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87944035] [2020-11-07 00:00:43,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:43,101 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,854 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:43,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:00:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:43,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:44,040 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 00:00:44,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87944035] [2020-11-07 00:00:44,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:44,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:00:44,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876854647] [2020-11-07 00:00:44,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:00:44,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:44,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:00:44,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:00:44,092 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 3 states. [2020-11-07 00:00:45,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:45,500 INFO L93 Difference]: Finished difference Result 395 states and 472 transitions. [2020-11-07 00:00:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:00:45,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:00:45,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:45,519 INFO L225 Difference]: With dead ends: 395 [2020-11-07 00:00:45,519 INFO L226 Difference]: Without dead ends: 255 [2020-11-07 00:00:45,524 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 00:00:45,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-07 00:00:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2020-11-07 00:00:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-11-07 00:00:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 231 transitions. [2020-11-07 00:00:45,658 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 231 transitions. Word has length 159 [2020-11-07 00:00:45,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:45,659 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 231 transitions. [2020-11-07 00:00:45,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:00:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 231 transitions. [2020-11-07 00:00:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:00:45,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:45,665 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 00:00:45,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:00:45,665 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 00:00:45,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:45,666 INFO L82 PathProgramCache]: Analyzing trace with hash -340340362, now seen corresponding path program 1 times [2020-11-07 00:00:45,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:45,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052553339] [2020-11-07 00:00:45,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:45,671 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,213 WARN L194 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:46,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:00:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:00:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:00:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:46,365 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 00:00:46,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052553339] [2020-11-07 00:00:46,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:46,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:00:46,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706722135] [2020-11-07 00:00:46,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:00:46,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:46,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:00:46,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:00:46,372 INFO L87 Difference]: Start difference. First operand 216 states and 231 transitions. Second operand 4 states. [2020-11-07 00:00:47,214 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:48,011 INFO L93 Difference]: Finished difference Result 300 states and 333 transitions. [2020-11-07 00:00:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:00:48,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:00:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:48,015 INFO L225 Difference]: With dead ends: 300 [2020-11-07 00:00:48,015 INFO L226 Difference]: Without dead ends: 238 [2020-11-07 00:00:48,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:00:48,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-11-07 00:00:48,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2020-11-07 00:00:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-07 00:00:48,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 218 transitions. [2020-11-07 00:00:48,101 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 218 transitions. Word has length 160 [2020-11-07 00:00:48,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:48,102 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 218 transitions. [2020-11-07 00:00:48,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:00:48,102 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 218 transitions. [2020-11-07 00:00:48,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:00:48,105 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:48,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:00:48,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:00:48,106 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 00:00:48,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:48,107 INFO L82 PathProgramCache]: Analyzing trace with hash 2050856472, now seen corresponding path program 1 times [2020-11-07 00:00:48,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:48,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793199143] [2020-11-07 00:00:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:48,111 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,611 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:48,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:00:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:48,781 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 00:00:48,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793199143] [2020-11-07 00:00:48,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:48,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:00:48,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335653586] [2020-11-07 00:00:48,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:00:48,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:48,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:00:48,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:00:48,784 INFO L87 Difference]: Start difference. First operand 206 states and 218 transitions. Second operand 9 states. [2020-11-07 00:00:49,440 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:49,925 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:00:50,324 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:00:50,707 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:51,078 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:51,448 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:52,541 WARN L194 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:54,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:54,237 INFO L93 Difference]: Finished difference Result 523 states and 596 transitions. [2020-11-07 00:00:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:00:54,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:00:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:54,247 INFO L225 Difference]: With dead ends: 523 [2020-11-07 00:00:54,247 INFO L226 Difference]: Without dead ends: 432 [2020-11-07 00:00:54,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:00:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-11-07 00:00:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 359. [2020-11-07 00:00:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-11-07 00:00:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 394 transitions. [2020-11-07 00:00:54,450 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 394 transitions. Word has length 169 [2020-11-07 00:00:54,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:54,452 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 394 transitions. [2020-11-07 00:00:54,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:00:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 394 transitions. [2020-11-07 00:00:54,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-07 00:00:54,456 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:54,456 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] [2020-11-07 00:00:54,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:00:54,457 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 00:00:54,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:54,458 INFO L82 PathProgramCache]: Analyzing trace with hash 778814894, now seen corresponding path program 1 times [2020-11-07 00:00:54,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:54,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610455426] [2020-11-07 00:00:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:54,465 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:54,934 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:54,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:00:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 00:00:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 00:00:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-07 00:00:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:55,148 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 00:00:55,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610455426] [2020-11-07 00:00:55,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:55,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 00:00:55,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001259089] [2020-11-07 00:00:55,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 00:00:55,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:55,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 00:00:55,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 00:00:55,153 INFO L87 Difference]: Start difference. First operand 359 states and 394 transitions. Second operand 8 states. [2020-11-07 00:00:55,856 WARN L194 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:57,428 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:57,845 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:58,299 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:58,711 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:59,076 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:59,477 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:59,837 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:00,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:00,296 INFO L93 Difference]: Finished difference Result 857 states and 1001 transitions. [2020-11-07 00:01:00,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:00,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-11-07 00:01:00,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:00,312 INFO L225 Difference]: With dead ends: 857 [2020-11-07 00:01:00,312 INFO L226 Difference]: Without dead ends: 613 [2020-11-07 00:01:00,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:01:00,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-11-07 00:01:00,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 577. [2020-11-07 00:01:00,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-11-07 00:01:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 653 transitions. [2020-11-07 00:01:00,604 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 653 transitions. Word has length 172 [2020-11-07 00:01:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:00,605 INFO L481 AbstractCegarLoop]: Abstraction has 577 states and 653 transitions. [2020-11-07 00:01:00,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 00:01:00,605 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 653 transitions. [2020-11-07 00:01:00,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:01:00,609 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:00,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:00,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:01:00,610 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 00:01:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:00,610 INFO L82 PathProgramCache]: Analyzing trace with hash -556166915, now seen corresponding path program 1 times [2020-11-07 00:01:00,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:00,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849502703] [2020-11-07 00:01:00,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:00,614 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,002 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:01,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-07 00:01:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:01:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:01:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:01:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:01:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:01,126 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 00:01:01,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849502703] [2020-11-07 00:01:01,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:01,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 00:01:01,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386694367] [2020-11-07 00:01:01,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 00:01:01,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:01,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 00:01:01,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:01:01,129 INFO L87 Difference]: Start difference. First operand 577 states and 653 transitions. Second operand 5 states. [2020-11-07 00:01:01,730 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:02,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:02,563 INFO L93 Difference]: Finished difference Result 952 states and 1102 transitions. [2020-11-07 00:01:02,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:01:02,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-11-07 00:01:02,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:02,568 INFO L225 Difference]: With dead ends: 952 [2020-11-07 00:01:02,568 INFO L226 Difference]: Without dead ends: 550 [2020-11-07 00:01:02,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:01:02,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-11-07 00:01:02,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 528. [2020-11-07 00:01:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-07 00:01:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 579 transitions. [2020-11-07 00:01:02,782 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 579 transitions. Word has length 177 [2020-11-07 00:01:02,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:02,782 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 579 transitions. [2020-11-07 00:01:02,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 00:01:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 579 transitions. [2020-11-07 00:01:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:01:02,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:02,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:02,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:01:02,786 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 00:01:02,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:02,787 INFO L82 PathProgramCache]: Analyzing trace with hash 887211403, now seen corresponding path program 1 times [2020-11-07 00:01:02,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:02,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072131990] [2020-11-07 00:01:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:02,790 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:02,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:02,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:03,146 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:01:03,146 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:01:03,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:01:03,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:01:03 BoogieIcfgContainer [2020-11-07 00:01:03,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:01:03,185 INFO L168 Benchmark]: Toolchain (without parser) took 22589.18 ms. Allocated memory was 162.5 MB in the beginning and 461.4 MB in the end (delta: 298.8 MB). Free memory was 138.4 MB in the beginning and 196.9 MB in the end (delta: -58.4 MB). Peak memory consumption was 242.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:03,186 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 162.5 MB. Free memory is still 139.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:01:03,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.65 ms. Allocated memory is still 162.5 MB. Free memory was 137.8 MB in the beginning and 117.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:03,194 INFO L168 Benchmark]: Boogie Preprocessor took 169.60 ms. Allocated memory is still 162.5 MB. Free memory was 117.4 MB in the beginning and 113.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:03,195 INFO L168 Benchmark]: RCFGBuilder took 1468.83 ms. Allocated memory was 162.5 MB in the beginning and 221.2 MB in the end (delta: 58.7 MB). Free memory was 113.6 MB in the beginning and 179.4 MB in the end (delta: -65.8 MB). Peak memory consumption was 37.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:03,196 INFO L168 Benchmark]: TraceAbstraction took 20300.52 ms. Allocated memory was 221.2 MB in the beginning and 461.4 MB in the end (delta: 240.1 MB). Free memory was 178.9 MB in the beginning and 196.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 222.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:03,205 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 162.5 MB. Free memory is still 139.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 627.65 ms. Allocated memory is still 162.5 MB. Free memory was 137.8 MB in the beginning and 117.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.60 ms. Allocated memory is still 162.5 MB. Free memory was 117.4 MB in the beginning and 113.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1468.83 ms. Allocated memory was 162.5 MB in the beginning and 221.2 MB in the end (delta: 58.7 MB). Free memory was 113.6 MB in the beginning and 179.4 MB in the end (delta: -65.8 MB). Peak memory consumption was 37.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20300.52 ms. Allocated memory was 221.2 MB in the beginning and 461.4 MB in the end (delta: 240.1 MB). Free memory was 178.9 MB in the beginning and 196.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 222.7 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: [L80] int cleanupTimeShifts = 4; [L388] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L161] int retValue_acc ; [L162] int tmp ; [L166] FCALL select_helpers() [L167] FCALL select_features() [L168] CALL, EXPR valid_product() [L210] int retValue_acc ; [L213] retValue_acc = 1 [L214] return (retValue_acc); [L168] RET, EXPR valid_product() [L168] tmp = valid_product() [L170] COND TRUE \read(tmp) [L172] FCALL setup() [L173] CALL runTest() [L152] CALL test() [L731] int splverifierCounter ; [L732] int tmp ; [L733] int tmp___0 ; [L734] int tmp___1 ; [L735] int tmp___2 ; [L738] splverifierCounter = 0 [L740] COND TRUE 1 [L742] COND TRUE splverifierCounter < 4 [L748] tmp = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp) [L752] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L752] RET waterRise() [L758] tmp___0 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___0)) [L768] tmp___2 = __VERIFIER_nondet_int() [L770] COND TRUE \read(tmp___2) [L785] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L606] FCALL processEnvironment() [L612] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L670] int retValue_acc ; [L673] retValue_acc = pumpRunning [L674] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L801] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product11.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 606 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 987 SDtfs, 1208 SDslu, 1350 SDs, 0 SdLazy, 2279 SolverSat, 390 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred 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: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 202 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...