/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -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 04:10:03,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:10:03,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:10:03,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:10:03,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:10:03,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:10:03,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:10:03,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:10:03,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:10:03,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:10:03,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:10:03,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:10:03,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:10:03,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:10:03,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:10:03,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:10:03,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:10:03,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:10:03,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:10:03,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:10:03,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:10:03,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:10:03,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:10:03,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:10:03,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 04:10:03,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 04:10:03,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 04:10:03,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 04:10:03,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 04:10:03,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 04:10:03,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:10:03,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:10:03,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:10:03,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:10:03,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:10:03,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:10:03,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:10:03,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:10:03,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:10:03,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:10:03,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:10:03,431 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 04:10:03,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:10:03,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:10:03,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:10:03,460 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:10:03,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:10:03,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:10:03,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:10:03,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:10:03,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:10:03,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:10:03,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:10:03,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:10:03,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:10:03,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:10:03,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:10:03,464 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:10:03,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:10:03,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:10:03,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:10:03,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:10:03,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:10:03,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:10:03,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:10:03,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:10:03,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:10:03,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:10:03,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:10:03,874 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:10:03,875 INFO L432 ainManager$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 04:10:03,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18266da26/b50a6a74a5af4faba26f93af540bda98/FLAGcee606347 [2020-11-07 04:10:04,722 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:10:04,723 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-11-07 04:10:04,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18266da26/b50a6a74a5af4faba26f93af540bda98/FLAGcee606347 [2020-11-07 04:10:04,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18266da26/b50a6a74a5af4faba26f93af540bda98 [2020-11-07 04:10:04,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:10:05,000 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:10:05,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:10:05,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:10:05,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:10:05,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:10:04" (1/1) ... [2020-11-07 04:10:05,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1ddb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05, skipping insertion in model container [2020-11-07 04:10:05,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:10:04" (1/1) ... [2020-11-07 04:10:05,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:10:05,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:10:05,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:10:05,346 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:10:05,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:10:05,463 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:10:05,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05 WrapperNode [2020-11-07 04:10:05,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:10:05,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:10:05,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:10:05,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:10:05,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (1/1) ... [2020-11-07 04:10:05,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (1/1) ... [2020-11-07 04:10:05,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (1/1) ... [2020-11-07 04:10:05,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (1/1) ... [2020-11-07 04:10:05,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (1/1) ... [2020-11-07 04:10:05,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (1/1) ... [2020-11-07 04:10:05,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (1/1) ... [2020-11-07 04:10:05,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:10:05,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:10:05,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:10:05,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:10:05,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (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 04:10:05,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:10:05,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:10:05,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 04:10:05,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:10:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:10:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 04:10:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 04:10:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 04:10:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 04:10:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:10:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 04:10:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 04:10:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 04:10:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 04:10:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 04:10:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 04:10:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 04:10:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 04:10:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 04:10:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 04:10:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 04:10:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 04:10:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-11-07 04:10:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 04:10:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 04:10:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 04:10:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 04:10:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 04:10:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 04:10:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 04:10:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 04:10:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 04:10:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 04:10:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 04:10:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 04:10:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 04:10:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 04:10:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:10:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:10:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:10:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:10:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:10:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 04:10:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 04:10:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 04:10:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 04:10:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 04:10:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:10:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 04:10:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 04:10:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 04:10:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 04:10:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 04:10:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 04:10:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 04:10:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 04:10:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 04:10:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 04:10:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 04:10:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 04:10:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:10:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 04:10:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 04:10:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 04:10:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 04:10:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 04:10:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 04:10:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:10:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 04:10:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 04:10:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:10:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 04:10:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 04:10:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:10:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 04:10:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 04:10:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 04:10:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 04:10:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 04:10:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 04:10:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 04:10:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 04:10:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 04:10:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-11-07 04:10:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 04:10:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:10:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:10:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:10:07,052 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:10:07,053 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 04:10:07,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:10:07 BoogieIcfgContainer [2020-11-07 04:10:07,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:10:07,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:10:07,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:10:07,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:10:07,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:10:04" (1/3) ... [2020-11-07 04:10:07,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0161fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:10:07, skipping insertion in model container [2020-11-07 04:10:07,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:05" (2/3) ... [2020-11-07 04:10:07,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0161fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:10:07, skipping insertion in model container [2020-11-07 04:10:07,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:10:07" (3/3) ... [2020-11-07 04:10:07,065 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-11-07 04:10:07,081 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:10:07,085 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 04:10:07,098 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 04:10:07,122 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:10:07,122 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:10:07,122 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:10:07,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:10:07,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:10:07,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:10:07,123 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:10:07,123 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:10:07,145 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-11-07 04:10:07,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 04:10:07,164 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:07,165 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 04:10:07,166 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 04:10:07,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:07,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1931328131, now seen corresponding path program 1 times [2020-11-07 04:10:07,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:07,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064484886] [2020-11-07 04:10:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:07,989 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:07,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:10:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:10:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:10:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:08,213 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 04:10:08,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064484886] [2020-11-07 04:10:08,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:08,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 04:10:08,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472553555] [2020-11-07 04:10:08,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 04:10:08,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:08,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 04:10:08,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 04:10:08,247 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 3 states. [2020-11-07 04:10:09,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:10:09,701 INFO L93 Difference]: Finished difference Result 395 states and 472 transitions. [2020-11-07 04:10:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 04:10:09,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 04:10:09,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:10:09,720 INFO L225 Difference]: With dead ends: 395 [2020-11-07 04:10:09,721 INFO L226 Difference]: Without dead ends: 255 [2020-11-07 04:10:09,727 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 04:10:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-07 04:10:09,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2020-11-07 04:10:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-11-07 04:10:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 231 transitions. [2020-11-07 04:10:09,980 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 231 transitions. Word has length 159 [2020-11-07 04:10:09,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:10:09,981 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 231 transitions. [2020-11-07 04:10:09,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 04:10:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 231 transitions. [2020-11-07 04:10:09,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 04:10:09,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:09,989 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 04:10:09,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:10:09,990 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 04:10:09,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:09,991 INFO L82 PathProgramCache]: Analyzing trace with hash -340340362, now seen corresponding path program 1 times [2020-11-07 04:10:09,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:09,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445571702] [2020-11-07 04:10:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,586 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:10,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 04:10:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:10:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 04:10:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:10,726 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 04:10:10,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445571702] [2020-11-07 04:10:10,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:10,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:10:10,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216915206] [2020-11-07 04:10:10,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:10:10,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:10,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:10:10,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:10:10,734 INFO L87 Difference]: Start difference. First operand 216 states and 231 transitions. Second operand 4 states. [2020-11-07 04:10:11,617 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:10:12,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:10:12,345 INFO L93 Difference]: Finished difference Result 300 states and 333 transitions. [2020-11-07 04:10:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 04:10:12,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 04:10:12,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:10:12,351 INFO L225 Difference]: With dead ends: 300 [2020-11-07 04:10:12,351 INFO L226 Difference]: Without dead ends: 238 [2020-11-07 04:10:12,353 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 04:10:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-11-07 04:10:12,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2020-11-07 04:10:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-07 04:10:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 218 transitions. [2020-11-07 04:10:12,476 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 218 transitions. Word has length 160 [2020-11-07 04:10:12,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:10:12,477 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 218 transitions. [2020-11-07 04:10:12,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:10:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 218 transitions. [2020-11-07 04:10:12,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 04:10:12,490 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:12,491 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 04:10:12,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:10:12,491 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 04:10:12,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:12,492 INFO L82 PathProgramCache]: Analyzing trace with hash 2050856472, now seen corresponding path program 1 times [2020-11-07 04:10:12,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:12,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413643714] [2020-11-07 04:10:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,162 WARN L194 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:13,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:10:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:10:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 04:10:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:13,349 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 04:10:13,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413643714] [2020-11-07 04:10:13,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:13,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:10:13,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055221695] [2020-11-07 04:10:13,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:10:13,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:13,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:10:13,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:10:13,353 INFO L87 Difference]: Start difference. First operand 206 states and 218 transitions. Second operand 9 states. [2020-11-07 04:10:14,006 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:10:14,523 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:10:14,916 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:10:15,281 WARN L194 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:10:15,676 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:10:16,039 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:10:17,187 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:10:18,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:10:18,888 INFO L93 Difference]: Finished difference Result 523 states and 596 transitions. [2020-11-07 04:10:18,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 04:10:18,889 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 04:10:18,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:10:18,895 INFO L225 Difference]: With dead ends: 523 [2020-11-07 04:10:18,895 INFO L226 Difference]: Without dead ends: 432 [2020-11-07 04:10:18,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:10:18,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-11-07 04:10:19,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 359. [2020-11-07 04:10:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-11-07 04:10:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 394 transitions. [2020-11-07 04:10:19,092 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 394 transitions. Word has length 169 [2020-11-07 04:10:19,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:10:19,092 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 394 transitions. [2020-11-07 04:10:19,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:10:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 394 transitions. [2020-11-07 04:10:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-07 04:10:19,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:19,096 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 04:10:19,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:10:19,097 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 04:10:19,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:19,097 INFO L82 PathProgramCache]: Analyzing trace with hash 778814894, now seen corresponding path program 1 times [2020-11-07 04:10:19,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:19,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254020039] [2020-11-07 04:10:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,530 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 04:10:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:10:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 04:10:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-07 04:10:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:19,688 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 04:10:19,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254020039] [2020-11-07 04:10:19,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:19,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 04:10:19,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345345063] [2020-11-07 04:10:19,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 04:10:19,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:19,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 04:10:19,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 04:10:19,691 INFO L87 Difference]: Start difference. First operand 359 states and 394 transitions. Second operand 8 states. [2020-11-07 04:10:20,411 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:10:22,064 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:10:22,462 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:10:22,867 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:10:23,296 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:10:23,663 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:10:24,061 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:10:24,413 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:10:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:10:24,908 INFO L93 Difference]: Finished difference Result 857 states and 1001 transitions. [2020-11-07 04:10:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 04:10:24,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-11-07 04:10:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:10:24,915 INFO L225 Difference]: With dead ends: 857 [2020-11-07 04:10:24,915 INFO L226 Difference]: Without dead ends: 613 [2020-11-07 04:10:24,918 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 04:10:24,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-11-07 04:10:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 577. [2020-11-07 04:10:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-11-07 04:10:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 653 transitions. [2020-11-07 04:10:25,208 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 653 transitions. Word has length 172 [2020-11-07 04:10:25,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:10:25,208 INFO L481 AbstractCegarLoop]: Abstraction has 577 states and 653 transitions. [2020-11-07 04:10:25,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 04:10:25,208 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 653 transitions. [2020-11-07 04:10:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 04:10:25,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:25,213 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 04:10:25,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:10:25,213 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 04:10:25,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:25,214 INFO L82 PathProgramCache]: Analyzing trace with hash -556166915, now seen corresponding path program 1 times [2020-11-07 04:10:25,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:25,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070867765] [2020-11-07 04:10:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,587 WARN L194 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:10:25,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:10:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:10:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:10:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:10:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:10:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-07 04:10:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:10:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 04:10:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 04:10:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 04:10:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:10:25,746 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 04:10:25,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070867765] [2020-11-07 04:10:25,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:10:25,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 04:10:25,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994846492] [2020-11-07 04:10:25,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 04:10:25,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:10:25,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 04:10:25,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 04:10:25,749 INFO L87 Difference]: Start difference. First operand 577 states and 653 transitions. Second operand 5 states. [2020-11-07 04:10:26,345 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:10:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:10:27,212 INFO L93 Difference]: Finished difference Result 952 states and 1102 transitions. [2020-11-07 04:10:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 04:10:27,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-11-07 04:10:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:10:27,216 INFO L225 Difference]: With dead ends: 952 [2020-11-07 04:10:27,216 INFO L226 Difference]: Without dead ends: 550 [2020-11-07 04:10:27,218 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 04:10:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-11-07 04:10:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 528. [2020-11-07 04:10:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-07 04:10:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 579 transitions. [2020-11-07 04:10:27,449 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 579 transitions. Word has length 177 [2020-11-07 04:10:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:10:27,449 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 579 transitions. [2020-11-07 04:10:27,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 04:10:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 579 transitions. [2020-11-07 04:10:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 04:10:27,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:10:27,453 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 04:10:27,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 04:10:27,454 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 04:10:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:10:27,454 INFO L82 PathProgramCache]: Analyzing trace with hash 887211403, now seen corresponding path program 1 times [2020-11-07 04:10:27,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:10:27,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965517669] [2020-11-07 04:10:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:10:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:10:27,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:10:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:10:27,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:10:27,907 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:10:27,908 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:10:27,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 04:10:28,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:10:28 BoogieIcfgContainer [2020-11-07 04:10:28,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:10:28,212 INFO L168 Benchmark]: Toolchain (without parser) took 23216.78 ms. Allocated memory was 151.0 MB in the beginning and 488.6 MB in the end (delta: 337.6 MB). Free memory was 127.2 MB in the beginning and 421.8 MB in the end (delta: -294.6 MB). Peak memory consumption was 293.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:10:28,213 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:10:28,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.85 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 106.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:10:28,214 INFO L168 Benchmark]: Boogie Preprocessor took 88.97 ms. Allocated memory is still 151.0 MB. Free memory was 106.3 MB in the beginning and 102.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:10:28,215 INFO L168 Benchmark]: RCFGBuilder took 1501.19 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.4 MB in the beginning and 128.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 8.0 GB. [2020-11-07 04:10:28,216 INFO L168 Benchmark]: TraceAbstraction took 21152.65 ms. Allocated memory was 181.4 MB in the beginning and 488.6 MB in the end (delta: 307.2 MB). Free memory was 127.5 MB in the beginning and 421.8 MB in the end (delta: -294.3 MB). Peak memory consumption was 263.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:10:28,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 462.85 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 106.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 88.97 ms. Allocated memory is still 151.0 MB. Free memory was 106.3 MB in the beginning and 102.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1501.19 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.4 MB in the beginning and 128.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21152.65 ms. Allocated memory was 181.4 MB in the beginning and 488.6 MB in the end (delta: 307.2 MB). Free memory was 127.5 MB in the beginning and 421.8 MB in the end (delta: -294.3 MB). Peak memory consumption was 263.0 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; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={182:170}, methaneLevelCritical=149, pumpRunning=142, systemActive=141, waterLevel=145] [L388] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=142, systemActive=141, waterLevel=145] [L590] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=141, waterLevel=145] [L591] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=145] [L806] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=149, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=1] [L807] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=149, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L161] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L162] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L168] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L210] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L213] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L214] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L168] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L168] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L170] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L172] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L173] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L152] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L731] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L732] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L733] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L734] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L735] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L738] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L740] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L742] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L748] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L750] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L752] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L758] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L760] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L768] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L770] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L785] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L604] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L48] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L49] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L845] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L848] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L53] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L55] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L877] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L880] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L881] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L670] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L673] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L674] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L65] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L69] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product11.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 606 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.3s, 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, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 8.0s 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: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 202 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1014 NumberOfCodeBlocks, 1014 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 832 ConstructedInterpolants, 0 QuantifiedInterpolants, 359968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...