/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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 21:58:20,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 21:58:20,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 21:58:20,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 21:58:20,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 21:58:20,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 21:58:20,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 21:58:20,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 21:58:20,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 21:58:20,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 21:58:20,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 21:58:20,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 21:58:20,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 21:58:20,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 21:58:20,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 21:58:20,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 21:58:20,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 21:58:20,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 21:58:20,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 21:58:20,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 21:58:20,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 21:58:20,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 21:58:20,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 21:58:20,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 21:58:20,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 21:58:20,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 21:58:20,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 21:58:20,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 21:58:20,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 21:58:20,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 21:58:20,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 21:58:20,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 21:58:20,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 21:58:20,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 21:58:20,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 21:58:20,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 21:58:20,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 21:58:20,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 21:58:20,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 21:58:20,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 21:58:20,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 21:58:20,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 21:58:20,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 21:58:20,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 21:58:20,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 21:58:20,479 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 21:58:20,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 21:58:20,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 21:58:20,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 21:58:20,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 21:58:20,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 21:58:20,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 21:58:20,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 21:58:20,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 21:58:20,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 21:58:20,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 21:58:20,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 21:58:20,482 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 21:58:20,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 21:58:20,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 21:58:20,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:58:20,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 21:58:20,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 21:58:20,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 21:58:20,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 21:58:20,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 21:58:20,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 21:58:20,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 21:58:20,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 21:58:20,875 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 21:58:20,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2021-02-23 21:58:20,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd90f2ea/c7dd482fbb53439386b67753cdba99ab/FLAGb0c09cc67 [2021-02-23 21:58:21,622 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 21:58:21,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2021-02-23 21:58:21,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd90f2ea/c7dd482fbb53439386b67753cdba99ab/FLAGb0c09cc67 [2021-02-23 21:58:21,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd90f2ea/c7dd482fbb53439386b67753cdba99ab [2021-02-23 21:58:21,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 21:58:21,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 21:58:21,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 21:58:21,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 21:58:21,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 21:58:21,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:58:21" (1/1) ... [2021-02-23 21:58:21,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a08503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:21, skipping insertion in model container [2021-02-23 21:58:21,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:58:21" (1/1) ... [2021-02-23 21:58:21,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 21:58:21,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 21:58:22,280 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c[4729,4742] [2021-02-23 21:58:22,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:58:22,435 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 21:58:22,465 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c[4729,4742] [2021-02-23 21:58:22,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:58:22,538 INFO L208 MainTranslator]: Completed translation [2021-02-23 21:58:22,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22 WrapperNode [2021-02-23 21:58:22,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 21:58:22,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 21:58:22,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 21:58:22,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 21:58:22,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (1/1) ... [2021-02-23 21:58:22,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (1/1) ... [2021-02-23 21:58:22,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (1/1) ... [2021-02-23 21:58:22,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (1/1) ... [2021-02-23 21:58:22,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (1/1) ... [2021-02-23 21:58:22,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (1/1) ... [2021-02-23 21:58:22,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (1/1) ... [2021-02-23 21:58:22,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 21:58:22,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 21:58:22,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 21:58:22,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 21:58:22,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (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 [2021-02-23 21:58:22,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 21:58:22,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 21:58:22,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 21:58:22,827 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 21:58:22,827 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 21:58:22,827 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 21:58:22,827 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 21:58:22,827 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 21:58:22,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 21:58:22,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 21:58:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 21:58:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 21:58:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 21:58:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 21:58:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 21:58:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 21:58:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:58:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 21:58:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 21:58:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 21:58:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 21:58:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 21:58:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 21:58:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 21:58:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 21:58:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 21:58:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 21:58:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 21:58:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 21:58:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 21:58:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 21:58:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 21:58:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 21:58:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 21:58:22,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 21:58:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 21:58:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 21:58:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 21:58:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 21:58:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 21:58:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 21:58:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 21:58:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 21:58:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 21:58:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 21:58:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 21:58:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 21:58:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 21:58:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 21:58:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:58:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 21:58:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 21:58:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 21:58:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 21:58:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 21:58:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 21:58:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 21:58:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 21:58:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 21:58:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 21:58:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 21:58:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 21:58:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 21:58:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 21:58:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 21:58:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 21:58:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 21:58:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 21:58:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 21:58:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 21:58:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 21:58:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 21:58:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 21:58:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 21:58:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 21:58:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 21:58:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 21:58:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 21:58:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 21:58:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 21:58:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 21:58:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 21:58:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 21:58:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 21:58:24,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 21:58:24,117 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 21:58:24,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:58:24 BoogieIcfgContainer [2021-02-23 21:58:24,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 21:58:24,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 21:58:24,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 21:58:24,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 21:58:24,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:58:21" (1/3) ... [2021-02-23 21:58:24,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0048ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:58:24, skipping insertion in model container [2021-02-23 21:58:24,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:22" (2/3) ... [2021-02-23 21:58:24,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0048ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:58:24, skipping insertion in model container [2021-02-23 21:58:24,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:58:24" (3/3) ... [2021-02-23 21:58:24,137 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2021-02-23 21:58:24,145 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 21:58:24,151 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 21:58:24,172 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 21:58:24,203 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 21:58:24,204 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 21:58:24,204 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 21:58:24,204 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 21:58:24,205 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 21:58:24,205 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 21:58:24,205 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 21:58:24,205 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 21:58:24,240 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states. [2021-02-23 21:58:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 21:58:24,271 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:24,272 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] [2021-02-23 21:58:24,273 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:24,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:24,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1229071768, now seen corresponding path program 1 times [2021-02-23 21:58:24,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:24,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914609759] [2021-02-23 21:58:24,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:24,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:24,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:24,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:24,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,087 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:25,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 21:58:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:58:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 21:58:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:25,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:25,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:25,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914609759] [2021-02-23 21:58:25,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:25,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 21:58:25,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689879864] [2021-02-23 21:58:25,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 21:58:25,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:25,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 21:58:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:58:25,353 INFO L87 Difference]: Start difference. First operand 264 states. Second operand 3 states. [2021-02-23 21:58:26,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:26,613 INFO L93 Difference]: Finished difference Result 371 states and 444 transitions. [2021-02-23 21:58:26,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 21:58:26,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 21:58:26,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:26,631 INFO L225 Difference]: With dead ends: 371 [2021-02-23 21:58:26,631 INFO L226 Difference]: Without dead ends: 243 [2021-02-23 21:58:26,635 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 [2021-02-23 21:58:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-02-23 21:58:26,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 206. [2021-02-23 21:58:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2021-02-23 21:58:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 220 transitions. [2021-02-23 21:58:26,760 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 220 transitions. Word has length 158 [2021-02-23 21:58:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:26,762 INFO L480 AbstractCegarLoop]: Abstraction has 206 states and 220 transitions. [2021-02-23 21:58:26,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 21:58:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 220 transitions. [2021-02-23 21:58:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 21:58:26,767 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:26,767 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] [2021-02-23 21:58:26,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 21:58:26,767 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:26,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:26,768 INFO L82 PathProgramCache]: Analyzing trace with hash 154637517, now seen corresponding path program 1 times [2021-02-23 21:58:26,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:26,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966602523] [2021-02-23 21:58:26,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:26,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:26,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:26,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:26,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:26,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:26,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,231 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:27,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 21:58:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:58:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 21:58:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:27,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:27,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:27,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966602523] [2021-02-23 21:58:27,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:27,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 21:58:27,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622066986] [2021-02-23 21:58:27,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 21:58:27,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:27,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 21:58:27,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 21:58:27,370 INFO L87 Difference]: Start difference. First operand 206 states and 220 transitions. Second operand 4 states. [2021-02-23 21:58:28,147 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:58:28,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:28,757 INFO L93 Difference]: Finished difference Result 287 states and 318 transitions. [2021-02-23 21:58:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 21:58:28,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 21:58:28,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:28,773 INFO L225 Difference]: With dead ends: 287 [2021-02-23 21:58:28,773 INFO L226 Difference]: Without dead ends: 226 [2021-02-23 21:58:28,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 21:58:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-02-23 21:58:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 196. [2021-02-23 21:58:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2021-02-23 21:58:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 207 transitions. [2021-02-23 21:58:28,885 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 207 transitions. Word has length 159 [2021-02-23 21:58:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:28,886 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 207 transitions. [2021-02-23 21:58:28,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 21:58:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 207 transitions. [2021-02-23 21:58:28,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-23 21:58:28,889 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:28,890 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] [2021-02-23 21:58:28,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 21:58:28,890 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:28,891 INFO L82 PathProgramCache]: Analyzing trace with hash 2069493044, now seen corresponding path program 1 times [2021-02-23 21:58:28,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:28,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728375462] [2021-02-23 21:58:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:28,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:28,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:28,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:29,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:29,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:58:29,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,321 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:29,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:58:29,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:58:29,475 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 21:58:29,477 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 21:58:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:58:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 21:58:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-23 21:58:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:29,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:29,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:29,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728375462] [2021-02-23 21:58:29,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:29,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:58:29,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610965509] [2021-02-23 21:58:29,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:58:29,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:29,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:58:29,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:58:29,598 INFO L87 Difference]: Start difference. First operand 196 states and 207 transitions. Second operand 9 states. [2021-02-23 21:58:30,174 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:58:30,668 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:58:31,042 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:58:31,410 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:31,784 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:58:32,136 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:33,179 INFO L93 Difference]: Finished difference Result 307 states and 343 transitions. [2021-02-23 21:58:33,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 21:58:33,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-23 21:58:33,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:33,183 INFO L225 Difference]: With dead ends: 307 [2021-02-23 21:58:33,183 INFO L226 Difference]: Without dead ends: 226 [2021-02-23 21:58:33,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-23 21:58:33,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-02-23 21:58:33,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 196. [2021-02-23 21:58:33,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2021-02-23 21:58:33,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 206 transitions. [2021-02-23 21:58:33,251 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 206 transitions. Word has length 168 [2021-02-23 21:58:33,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:33,252 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 206 transitions. [2021-02-23 21:58:33,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:58:33,252 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 206 transitions. [2021-02-23 21:58:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-23 21:58:33,255 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:33,255 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] [2021-02-23 21:58:33,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 21:58:33,255 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:33,256 INFO L82 PathProgramCache]: Analyzing trace with hash 313824382, now seen corresponding path program 1 times [2021-02-23 21:58:33,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:33,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122302929] [2021-02-23 21:58:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,730 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:33,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:58:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 21:58:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 21:58:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-23 21:58:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:33,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-23 21:58:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:33,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:33,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:33,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:33,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122302929] [2021-02-23 21:58:33,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:33,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 21:58:33,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489767169] [2021-02-23 21:58:33,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 21:58:33,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:33,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 21:58:33,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-23 21:58:33,914 INFO L87 Difference]: Start difference. First operand 196 states and 206 transitions. Second operand 8 states. [2021-02-23 21:58:34,492 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:58:35,793 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:36,147 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:58:36,529 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:36,929 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:58:37,279 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:58:37,633 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:37,995 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:38,310 INFO L93 Difference]: Finished difference Result 373 states and 422 transitions. [2021-02-23 21:58:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 21:58:38,310 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2021-02-23 21:58:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:38,316 INFO L225 Difference]: With dead ends: 373 [2021-02-23 21:58:38,316 INFO L226 Difference]: Without dead ends: 292 [2021-02-23 21:58:38,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-02-23 21:58:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-23 21:58:38,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 267. [2021-02-23 21:58:38,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2021-02-23 21:58:38,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 289 transitions. [2021-02-23 21:58:38,444 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 289 transitions. Word has length 171 [2021-02-23 21:58:38,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:38,444 INFO L480 AbstractCegarLoop]: Abstraction has 267 states and 289 transitions. [2021-02-23 21:58:38,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 21:58:38,445 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 289 transitions. [2021-02-23 21:58:38,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-23 21:58:38,448 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:38,448 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] [2021-02-23 21:58:38,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 21:58:38,448 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:38,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:38,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1590996381, now seen corresponding path program 1 times [2021-02-23 21:58:38,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:38,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390780578] [2021-02-23 21:58:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:58:38,522 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:58:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:58:38,593 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:58:38,770 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 21:58:38,770 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 21:58:38,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 21:58:38,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 09:58:38 BoogieIcfgContainer [2021-02-23 21:58:38,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 21:58:38,996 INFO L168 Benchmark]: Toolchain (without parser) took 17085.55 ms. Allocated memory was 167.8 MB in the beginning and 412.1 MB in the end (delta: 244.3 MB). Free memory was 144.3 MB in the beginning and 170.6 MB in the end (delta: -26.3 MB). Peak memory consumption was 218.3 MB. Max. memory is 8.0 GB. [2021-02-23 21:58:38,997 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 167.8 MB. Free memory was 140.4 MB in the beginning and 140.2 MB in the end (delta: 210.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 21:58:38,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.84 ms. Allocated memory is still 167.8 MB. Free memory was 143.0 MB in the beginning and 123.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-23 21:58:38,998 INFO L168 Benchmark]: Boogie Preprocessor took 116.65 ms. Allocated memory is still 167.8 MB. Free memory was 123.9 MB in the beginning and 120.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 21:58:38,998 INFO L168 Benchmark]: RCFGBuilder took 1461.37 ms. Allocated memory was 167.8 MB in the beginning and 217.1 MB in the end (delta: 49.3 MB). Free memory was 120.2 MB in the beginning and 192.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 64.5 MB. Max. memory is 8.0 GB. [2021-02-23 21:58:39,004 INFO L168 Benchmark]: TraceAbstraction took 14865.86 ms. Allocated memory was 217.1 MB in the beginning and 412.1 MB in the end (delta: 195.0 MB). Free memory was 191.7 MB in the beginning and 170.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 215.7 MB. Max. memory is 8.0 GB. [2021-02-23 21:58:39,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 167.8 MB. Free memory was 140.4 MB in the beginning and 140.2 MB in the end (delta: 210.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 617.84 ms. Allocated memory is still 167.8 MB. Free memory was 143.0 MB in the beginning and 123.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 116.65 ms. Allocated memory is still 167.8 MB. Free memory was 123.9 MB in the beginning and 120.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1461.37 ms. Allocated memory was 167.8 MB in the beginning and 217.1 MB in the end (delta: 49.3 MB). Free memory was 120.2 MB in the beginning and 192.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 64.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14865.86 ms. Allocated memory was 217.1 MB in the beginning and 412.1 MB in the end (delta: 195.0 MB). Free memory was 191.7 MB in the beginning and 170.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 215.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 304]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=144, cleanupTimeShifts=180, head={182:170}, methaneLevelCritical=149, pumpRunning=0, systemActive=138, waterLevel=144] [L51] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=144, cleanupTimeShifts=180, head={182:170}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=144] [L309] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=144, cleanupTimeShifts=4, head={182:170}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=144] [L405] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=144, cleanupTimeShifts=4, head={182:170}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=1] [L406] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=144, cleanupTimeShifts=4, head={182:170}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L383] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L387] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L388] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L389] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L255] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L258] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L259] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L389] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L389] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L391] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L393] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L394] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L376] CALL test() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L162] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L163] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L171] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L173] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L179] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L181] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L183] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L189] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \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] [L191] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L199] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \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] [L201] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \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] [L214] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L58] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L65] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L267] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L268] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L269] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L444] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L447] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L448] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L273] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L275] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L279] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L476] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L480] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L279] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L279] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L281] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L283] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L116] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L117] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L283] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L283] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \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] [L285] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L289] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L304] reach_error() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 587 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 755 SDtfs, 705 SDslu, 1098 SDs, 0 SdLazy, 1740 SolverSat, 225 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 122 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 832 NumberOfCodeBlocks, 832 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 652 ConstructedInterpolants, 0 QuantifiedInterpolants, 277846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...