/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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:58:17,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:58:17,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:58:17,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:58:17,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:58:17,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:58:17,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:58:17,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:58:17,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:58:17,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:58:17,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:58:17,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:58:17,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:58:17,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:58:17,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:58:17,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:58:17,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:58:17,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:58:17,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:58:17,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:58:17,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:58:17,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:58:17,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:58:17,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:58:17,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:58:17,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:58:17,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:58:17,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:58:17,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:58:17,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:58:17,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:58:17,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:58:17,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:58:17,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:58:17,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:58:17,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:58:17,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:58:17,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:58:17,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:58:17,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:58:17,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:58:17,445 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 19:58:17,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:58:17,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:58:17,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:58:17,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:58:17,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:58:17,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:58:17,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:58:17,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:58:17,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:58:17,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:58:17,461 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:58:17,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:58:17,461 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:58:17,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:58:17,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:58:17,462 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:58:17,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:58:17,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:58:17,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:58:17,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:58:17,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:58:17,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:58:17,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:58:17,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:58:17,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:58:17,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:58:17,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:58:17,876 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:58:17,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-10-23 19:58:17,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/999649678/9db15444d82446b9ab046cb767eba19b/FLAGfad634513 [2020-10-23 19:58:18,635 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:58:18,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-10-23 19:58:18,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/999649678/9db15444d82446b9ab046cb767eba19b/FLAGfad634513 [2020-10-23 19:58:18,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/999649678/9db15444d82446b9ab046cb767eba19b [2020-10-23 19:58:18,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:58:18,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:58:18,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:18,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:58:18,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:58:18,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:18" (1/1) ... [2020-10-23 19:58:18,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4796eec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:18, skipping insertion in model container [2020-10-23 19:58:18,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:18" (1/1) ... [2020-10-23 19:58:18,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:58:19,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:58:19,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:19,419 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:58:19,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:19,575 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:58:19,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19 WrapperNode [2020-10-23 19:58:19,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:19,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:58:19,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:58:19,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:58:19,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (1/1) ... [2020-10-23 19:58:19,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (1/1) ... [2020-10-23 19:58:19,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (1/1) ... [2020-10-23 19:58:19,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (1/1) ... [2020-10-23 19:58:19,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (1/1) ... [2020-10-23 19:58:19,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (1/1) ... [2020-10-23 19:58:19,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (1/1) ... [2020-10-23 19:58:19,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:58:19,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:58:19,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:58:19,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:58:19,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (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 19:58:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:58:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:58:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:58:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:58:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:58:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:58:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:58:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:58:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:58:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:58:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:58:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:58:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:58:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:58:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:58:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:58:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:58:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:58:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:58:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:58:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:58:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:58:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:58:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:58:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:58:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:58:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:58:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:58:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:58:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:58:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:58:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:58:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:58:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:58:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:58:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:58:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:58:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:58:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:58:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:58:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:58:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:58:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:58:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:58:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:58:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:58:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:58:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:58:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:58:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:58:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:58:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:58:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:58:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:58:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:58:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:58:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:58:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:58:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:58:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:58:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:58:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:58:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:58:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:58:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:58:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:58:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:58:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:58:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:58:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:58:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:58:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:58:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:58:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:58:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:58:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:58:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:58:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:58:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:58:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:58:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:58:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:58:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:58:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:58:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:58:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:58:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:58:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:58:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:58:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:58:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:58:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:58:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:58:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:58:21,664 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:58:21,664 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:58:21,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:21 BoogieIcfgContainer [2020-10-23 19:58:21,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:58:21,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:58:21,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:58:21,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:58:21,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:58:18" (1/3) ... [2020-10-23 19:58:21,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5bce3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:21, skipping insertion in model container [2020-10-23 19:58:21,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:19" (2/3) ... [2020-10-23 19:58:21,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5bce3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:21, skipping insertion in model container [2020-10-23 19:58:21,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:21" (3/3) ... [2020-10-23 19:58:21,676 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-10-23 19:58:21,689 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:58:21,695 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:58:21,709 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:58:21,734 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:58:21,734 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:58:21,734 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:58:21,735 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:58:21,735 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:58:21,735 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:58:21,735 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:58:21,735 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:58:21,759 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states. [2020-10-23 19:58:21,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:58:21,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:21,783 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 19:58:21,783 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 19:58:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:21,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1383843617, now seen corresponding path program 1 times [2020-10-23 19:58:21,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:21,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998096304] [2020-10-23 19:58:21,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:21,881 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,698 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:22,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:58:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:58:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:22,858 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 19:58:22,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998096304] [2020-10-23 19:58:22,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:22,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:58:22,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814039864] [2020-10-23 19:58:22,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:58:22,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:22,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:58:22,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:22,888 INFO L87 Difference]: Start difference. First operand 367 states. Second operand 3 states. [2020-10-23 19:58:24,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:24,800 INFO L93 Difference]: Finished difference Result 597 states and 711 transitions. [2020-10-23 19:58:24,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:58:24,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:58:24,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:24,821 INFO L225 Difference]: With dead ends: 597 [2020-10-23 19:58:24,822 INFO L226 Difference]: Without dead ends: 360 [2020-10-23 19:58:24,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:24,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-23 19:58:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 313. [2020-10-23 19:58:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-23 19:58:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 345 transitions. [2020-10-23 19:58:25,015 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 345 transitions. Word has length 159 [2020-10-23 19:58:25,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:25,016 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 345 transitions. [2020-10-23 19:58:25,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:58:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 345 transitions. [2020-10-23 19:58:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:58:25,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:25,022 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 19:58:25,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:58:25,023 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 19:58:25,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:25,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1550209003, now seen corresponding path program 1 times [2020-10-23 19:58:25,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:25,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323832189] [2020-10-23 19:58:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:25,028 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,481 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:25,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:58:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:58:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:25,582 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 19:58:25,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323832189] [2020-10-23 19:58:25,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:25,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:58:25,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606428874] [2020-10-23 19:58:25,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:58:25,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:25,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:58:25,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:58:25,585 INFO L87 Difference]: Start difference. First operand 313 states and 345 transitions. Second operand 4 states. [2020-10-23 19:58:26,279 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:27,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:27,745 INFO L93 Difference]: Finished difference Result 505 states and 574 transitions. [2020-10-23 19:58:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:58:27,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:58:27,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:27,751 INFO L225 Difference]: With dead ends: 505 [2020-10-23 19:58:27,751 INFO L226 Difference]: Without dead ends: 343 [2020-10-23 19:58:27,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:58:27,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-23 19:58:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 303. [2020-10-23 19:58:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-23 19:58:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 332 transitions. [2020-10-23 19:58:27,887 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 332 transitions. Word has length 160 [2020-10-23 19:58:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:27,888 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 332 transitions. [2020-10-23 19:58:27,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:58:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 332 transitions. [2020-10-23 19:58:27,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:58:27,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:27,892 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] [2020-10-23 19:58:27,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:58:27,893 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 19:58:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:27,893 INFO L82 PathProgramCache]: Analyzing trace with hash 341651726, now seen corresponding path program 1 times [2020-10-23 19:58:27,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:27,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783999678] [2020-10-23 19:58:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:27,897 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,334 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:58:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:58:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:28,491 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 19:58:28,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783999678] [2020-10-23 19:58:28,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:28,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:28,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392224292] [2020-10-23 19:58:28,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:28,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:28,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:28,494 INFO L87 Difference]: Start difference. First operand 303 states and 332 transitions. Second operand 9 states. [2020-10-23 19:58:29,110 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:29,462 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:29,745 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:30,048 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:30,328 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:30,622 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:31,612 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:34,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:34,790 INFO L93 Difference]: Finished difference Result 830 states and 960 transitions. [2020-10-23 19:58:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:58:34,790 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:58:34,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:34,798 INFO L225 Difference]: With dead ends: 830 [2020-10-23 19:58:34,798 INFO L226 Difference]: Without dead ends: 642 [2020-10-23 19:58:34,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 19:58:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-10-23 19:58:35,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 565. [2020-10-23 19:58:35,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-10-23 19:58:35,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 638 transitions. [2020-10-23 19:58:35,079 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 638 transitions. Word has length 169 [2020-10-23 19:58:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:35,080 INFO L481 AbstractCegarLoop]: Abstraction has 565 states and 638 transitions. [2020-10-23 19:58:35,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:35,080 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 638 transitions. [2020-10-23 19:58:35,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:58:35,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:35,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:35,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:58:35,089 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 19:58:35,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:35,089 INFO L82 PathProgramCache]: Analyzing trace with hash -2030091801, now seen corresponding path program 1 times [2020-10-23 19:58:35,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:35,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175843921] [2020-10-23 19:58:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:35,097 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,525 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:35,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:58:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:58:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:58:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:58:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:35,683 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 19:58:35,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175843921] [2020-10-23 19:58:35,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:35,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:35,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723387221] [2020-10-23 19:58:35,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:35,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:35,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:35,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:35,687 INFO L87 Difference]: Start difference. First operand 565 states and 638 transitions. Second operand 9 states. [2020-10-23 19:58:36,207 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:38,492 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:38,832 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:39,222 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:39,586 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:39,864 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:40,170 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:40,487 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:41,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:41,834 INFO L93 Difference]: Finished difference Result 1559 states and 1880 transitions. [2020-10-23 19:58:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:58:41,835 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:58:41,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:41,843 INFO L225 Difference]: With dead ends: 1559 [2020-10-23 19:58:41,843 INFO L226 Difference]: Without dead ends: 1109 [2020-10-23 19:58:41,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:58:41,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-10-23 19:58:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1001. [2020-10-23 19:58:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2020-10-23 19:58:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1157 transitions. [2020-10-23 19:58:42,251 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1157 transitions. Word has length 178 [2020-10-23 19:58:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:42,252 INFO L481 AbstractCegarLoop]: Abstraction has 1001 states and 1157 transitions. [2020-10-23 19:58:42,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1157 transitions. [2020-10-23 19:58:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:58:42,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:42,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:42,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:58:42,259 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 19:58:42,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:42,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1768416710, now seen corresponding path program 1 times [2020-10-23 19:58:42,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:42,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770612454] [2020-10-23 19:58:42,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:42,263 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:42,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:42,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:42,725 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:58:42,726 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:58:42,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:58:42,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:58:42 BoogieIcfgContainer [2020-10-23 19:58:42,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:58:42,766 INFO L168 Benchmark]: Toolchain (without parser) took 23815.36 ms. Allocated memory was 160.4 MB in the beginning and 612.4 MB in the end (delta: 451.9 MB). Free memory was 136.4 MB in the beginning and 512.9 MB in the end (delta: -376.5 MB). Peak memory consumption was 76.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:42,769 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 160.4 MB. Free memory was 133.9 MB in the beginning and 133.7 MB in the end (delta: 213.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:58:42,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.89 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 113.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:42,778 INFO L168 Benchmark]: Boogie Preprocessor took 149.58 ms. Allocated memory is still 160.4 MB. Free memory was 113.0 MB in the beginning and 109.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:42,779 INFO L168 Benchmark]: RCFGBuilder took 1938.65 ms. Allocated memory was 160.4 MB in the beginning and 205.5 MB in the end (delta: 45.1 MB). Free memory was 109.0 MB in the beginning and 134.9 MB in the end (delta: -25.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:42,779 INFO L168 Benchmark]: TraceAbstraction took 21095.63 ms. Allocated memory was 205.5 MB in the beginning and 612.4 MB in the end (delta: 406.8 MB). Free memory was 134.4 MB in the beginning and 512.9 MB in the end (delta: -378.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:42,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 160.4 MB. Free memory was 133.9 MB in the beginning and 133.7 MB in the end (delta: 213.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 618.89 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 113.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 149.58 ms. Allocated memory is still 160.4 MB. Free memory was 113.0 MB in the beginning and 109.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1938.65 ms. Allocated memory was 160.4 MB in the beginning and 205.5 MB in the end (delta: 45.1 MB). Free memory was 109.0 MB in the beginning and 134.9 MB in the end (delta: -25.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21095.63 ms. Allocated memory was 205.5 MB in the beginning and 612.4 MB in the end (delta: 406.8 MB). Free memory was 134.4 MB in the beginning and 512.9 MB in the end (delta: -378.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L514] int waterLevel = 1; [L515] int methaneLevelCritical = 0; [L829] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L447] int splverifierCounter ; [L448] int tmp ; [L449] int tmp___0 ; [L450] int tmp___1 ; [L451] int tmp___2 ; [L454] splverifierCounter = 0 [L456] COND TRUE 1 [L458] COND TRUE splverifierCounter < 4 [L464] tmp = __VERIFIER_nondet_int() [L466] COND TRUE \read(tmp) [L468] CALL waterRise() [L532] COND TRUE waterLevel < 2 [L533] waterLevel = waterLevel + 1 [L468] RET waterRise() [L474] tmp___0 = __VERIFIER_nondet_int() [L476] COND FALSE !(\read(tmp___0)) [L484] tmp___2 = __VERIFIER_nondet_int() [L486] COND FALSE !(\read(tmp___2)) [L490] tmp___1 = __VERIFIER_nondet_int() [L492] COND TRUE \read(tmp___1) [L494] CALL stopSystem() [L434] COND FALSE !(\read(pumpRunning)) [L441] systemActive = 0 [L494] RET stopSystem() [L501] CALL timeShift() [L198] COND FALSE !(\read(pumpRunning)) [L205] COND FALSE !(\read(systemActive)) [L213] CALL __utac_acc__Specification3_spec__1() [L627] int tmp ; [L628] int tmp___0 ; [L629] int tmp___1 ; [L633] CALL, EXPR isMethaneLevelCritical() [L553] int retValue_acc ; [L556] retValue_acc = methaneLevelCritical [L557] return (retValue_acc); [L633] RET, EXPR isMethaneLevelCritical() [L633] tmp = isMethaneLevelCritical() [L635] COND FALSE !(\read(tmp)) [L639] CALL, EXPR getWaterLevel() [L585] int retValue_acc ; [L588] retValue_acc = waterLevel [L589] return (retValue_acc); [L639] RET, EXPR getWaterLevel() [L639] tmp___0 = getWaterLevel() [L641] COND TRUE tmp___0 == 2 [L643] CALL, EXPR isPumpRunning() [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); [L643] RET, EXPR isPumpRunning() [L643] tmp___1 = isPumpRunning() [L645] COND FALSE !(\read(tmp___1)) [L649] CALL __automaton_fail() [L621] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product63.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 683 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1196 SDtfs, 1765 SDslu, 1373 SDs, 0 SdLazy, 3911 SolverSat, 613 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1001occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 272 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...