/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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:58:10,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:58:10,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:58:10,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:58:10,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:58:10,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:58:10,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:58:10,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:58:10,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:58:10,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:58:10,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:58:10,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:58:10,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:58:10,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:58:10,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:58:10,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:58:10,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:58:10,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:58:10,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:58:10,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:58:10,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:58:10,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:58:10,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:58:10,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:58:10,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:58:10,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:58:10,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:58:10,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:58:10,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:58:10,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:58:10,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:58:10,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:58:10,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:58:10,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:58:10,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:58:10,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:58:10,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:58:10,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:58:10,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:58:10,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:58:10,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:58:10,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:58:10,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:58:10,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:58:10,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:58:10,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:58:10,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:58:10,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:58:10,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:58:10,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:58:10,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:58:10,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:58:10,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:58:10,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:58:10,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:58:10,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:58:10,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:58:10,609 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:58:10,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:58:10,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:58:10,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:58:10,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:58:10,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:58:10,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:58:10,611 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:58:11,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:58:11,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:58:11,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:58:11,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:58:11,076 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:58:11,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-10-23 23:58:11,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360dfaa47/d6733788847c469ca395d1164f684dcf/FLAG388ac7cb6 [2020-10-23 23:58:11,782 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:58:11,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-10-23 23:58:11,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360dfaa47/d6733788847c469ca395d1164f684dcf/FLAG388ac7cb6 [2020-10-23 23:58:12,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360dfaa47/d6733788847c469ca395d1164f684dcf [2020-10-23 23:58:12,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:58:12,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:58:12,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:58:12,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:58:12,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:58:12,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a50f6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12, skipping insertion in model container [2020-10-23 23:58:12,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:58:12,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:58:12,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:58:12,586 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:58:12,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:58:12,768 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:58:12,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12 WrapperNode [2020-10-23 23:58:12,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:58:12,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:58:12,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:58:12,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:58:12,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... [2020-10-23 23:58:12,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:58:12,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:58:12,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:58:12,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:58:12,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:58:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:58:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:58:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:58:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:58:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:58:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:58:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:58:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:58:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:58:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:58:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 23:58:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:58:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:58:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:58:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:58:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:58:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:58:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:58:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:58:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:58:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:58:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:58:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:58:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 23:58:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:58:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:58:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:58:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:58:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:58:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:58:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 23:58:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 23:58:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:58:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:58:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:58:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:58:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:58:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:58:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:58:12,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:58:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:58:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:58:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:58:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:58:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:58:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:58:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:58:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:58:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:58:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:58:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:58:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:58:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 23:58:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:58:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:58:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:58:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:58:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:58:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:58:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:58:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:58:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:58:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:58:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:58:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:58:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 23:58:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:58:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:58:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:58:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 23:58:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 23:58:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:58:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:58:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:58:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:58:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:58:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:58:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:58:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:58:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:58:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:58:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:58:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:58:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:58:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:58:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:58:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:58:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:58:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:58:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:58:14,532 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:58:14,532 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:58:14,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:58:14 BoogieIcfgContainer [2020-10-23 23:58:14,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:58:14,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:58:14,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:58:14,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:58:14,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:58:12" (1/3) ... [2020-10-23 23:58:14,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aae084a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:58:14, skipping insertion in model container [2020-10-23 23:58:14,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:12" (2/3) ... [2020-10-23 23:58:14,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aae084a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:58:14, skipping insertion in model container [2020-10-23 23:58:14,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:58:14" (3/3) ... [2020-10-23 23:58:14,545 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2020-10-23 23:58:14,558 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:58:14,564 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:58:14,578 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:58:14,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:58:14,603 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:58:14,603 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:58:14,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:58:14,603 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:58:14,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:58:14,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:58:14,604 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:58:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-10-23 23:58:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:58:14,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:14,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:14,653 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:14,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:14,659 INFO L82 PathProgramCache]: Analyzing trace with hash 189847074, now seen corresponding path program 1 times [2020-10-23 23:58:14,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:14,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7422043] [2020-10-23 23:58:14,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,387 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:15,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:58:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:58:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:58:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:15,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7422043] [2020-10-23 23:58:15,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:15,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:58:15,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647655799] [2020-10-23 23:58:15,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:58:15,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:15,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:58:15,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:58:15,598 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states. [2020-10-23 23:58:17,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:17,377 INFO L93 Difference]: Finished difference Result 496 states and 591 transitions. [2020-10-23 23:58:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:58:17,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:58:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:17,400 INFO L225 Difference]: With dead ends: 496 [2020-10-23 23:58:17,401 INFO L226 Difference]: Without dead ends: 307 [2020-10-23 23:58:17,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:58:17,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-23 23:58:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-10-23 23:58:17,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-23 23:58:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-10-23 23:58:17,570 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 159 [2020-10-23 23:58:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:17,571 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-10-23 23:58:17,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:58:17,572 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-10-23 23:58:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:58:17,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:17,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:17,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:58:17,578 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:17,579 INFO L82 PathProgramCache]: Analyzing trace with hash 998665415, now seen corresponding path program 1 times [2020-10-23 23:58:17,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:17,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290906888] [2020-10-23 23:58:17,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,134 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:18,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:58:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:58:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:58:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:18,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290906888] [2020-10-23 23:58:18,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:18,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:58:18,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922251570] [2020-10-23 23:58:18,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:58:18,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:18,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:58:18,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:58:18,335 INFO L87 Difference]: Start difference. First operand 265 states and 288 transitions. Second operand 4 states. [2020-10-23 23:58:19,225 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:58:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:20,527 INFO L93 Difference]: Finished difference Result 406 states and 458 transitions. [2020-10-23 23:58:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:58:20,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:58:20,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:20,532 INFO L225 Difference]: With dead ends: 406 [2020-10-23 23:58:20,533 INFO L226 Difference]: Without dead ends: 290 [2020-10-23 23:58:20,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:58:20,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-23 23:58:20,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-10-23 23:58:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-23 23:58:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 275 transitions. [2020-10-23 23:58:20,682 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 275 transitions. Word has length 160 [2020-10-23 23:58:20,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:20,683 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 275 transitions. [2020-10-23 23:58:20,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:58:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 275 transitions. [2020-10-23 23:58:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 23:58:20,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:20,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:20,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:58:20,689 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:20,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:20,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1140498415, now seen corresponding path program 1 times [2020-10-23 23:58:20,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:20,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036783742] [2020-10-23 23:58:20,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,346 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:21,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:58:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:58:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:58:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 23:58:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:21,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036783742] [2020-10-23 23:58:21,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:21,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:58:21,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215802946] [2020-10-23 23:58:21,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:58:21,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:21,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:58:21,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:58:21,571 INFO L87 Difference]: Start difference. First operand 255 states and 275 transitions. Second operand 10 states. [2020-10-23 23:58:22,264 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:22,759 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:58:23,180 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:58:23,614 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:24,036 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:58:24,412 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:26,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:26,408 INFO L93 Difference]: Finished difference Result 452 states and 520 transitions. [2020-10-23 23:58:26,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:58:26,410 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 23:58:26,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:26,416 INFO L225 Difference]: With dead ends: 452 [2020-10-23 23:58:26,416 INFO L226 Difference]: Without dead ends: 312 [2020-10-23 23:58:26,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:58:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-23 23:58:26,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-10-23 23:58:26,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-23 23:58:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-10-23 23:58:26,533 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 173 [2020-10-23 23:58:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:26,534 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-10-23 23:58:26,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:58:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-10-23 23:58:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-23 23:58:26,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:26,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:26,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:58:26,538 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1609377999, now seen corresponding path program 1 times [2020-10-23 23:58:26,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:26,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427487070] [2020-10-23 23:58:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,062 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:27,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:58:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:58:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 23:58:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 23:58:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-23 23:58:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:27,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427487070] [2020-10-23 23:58:27,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:27,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:58:27,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186937299] [2020-10-23 23:58:27,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:58:27,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:27,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:58:27,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:58:27,291 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 10 states. [2020-10-23 23:58:27,997 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:30,862 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:31,375 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:58:31,818 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:32,264 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:58:32,680 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:33,399 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:33,924 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:34,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:34,820 INFO L93 Difference]: Finished difference Result 696 states and 855 transitions. [2020-10-23 23:58:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 23:58:34,822 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 186 [2020-10-23 23:58:34,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:34,828 INFO L225 Difference]: With dead ends: 696 [2020-10-23 23:58:34,828 INFO L226 Difference]: Without dead ends: 556 [2020-10-23 23:58:34,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-23 23:58:34,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-10-23 23:58:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 388. [2020-10-23 23:58:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-10-23 23:58:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 430 transitions. [2020-10-23 23:58:35,012 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 430 transitions. Word has length 186 [2020-10-23 23:58:35,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:35,012 INFO L481 AbstractCegarLoop]: Abstraction has 388 states and 430 transitions. [2020-10-23 23:58:35,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:58:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 430 transitions. [2020-10-23 23:58:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-23 23:58:35,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:35,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:35,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:58:35,017 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:35,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:35,018 INFO L82 PathProgramCache]: Analyzing trace with hash 145249115, now seen corresponding path program 1 times [2020-10-23 23:58:35,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:35,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571946539] [2020-10-23 23:58:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,393 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:35,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:58:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:58:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:58:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 23:58:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-23 23:58:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:58:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:35,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571946539] [2020-10-23 23:58:35,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:35,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 23:58:35,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703692174] [2020-10-23 23:58:35,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 23:58:35,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:35,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 23:58:35,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:58:35,595 INFO L87 Difference]: Start difference. First operand 388 states and 430 transitions. Second operand 7 states. [2020-10-23 23:58:36,284 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:37,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:37,522 INFO L93 Difference]: Finished difference Result 621 states and 725 transitions. [2020-10-23 23:58:37,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:58:37,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-10-23 23:58:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:37,527 INFO L225 Difference]: With dead ends: 621 [2020-10-23 23:58:37,527 INFO L226 Difference]: Without dead ends: 348 [2020-10-23 23:58:37,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:58:37,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-23 23:58:37,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 282. [2020-10-23 23:58:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-23 23:58:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 297 transitions. [2020-10-23 23:58:37,653 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 297 transitions. Word has length 191 [2020-10-23 23:58:37,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:37,653 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 297 transitions. [2020-10-23 23:58:37,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 23:58:37,653 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 297 transitions. [2020-10-23 23:58:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-23 23:58:37,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:37,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:37,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:58:37,658 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:37,659 INFO L82 PathProgramCache]: Analyzing trace with hash -203850179, now seen corresponding path program 1 times [2020-10-23 23:58:37,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:37,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153941803] [2020-10-23 23:58:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:58:37,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:58:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:58:37,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:58:38,161 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:58:38,161 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:58:38,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:58:38,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:58:38 BoogieIcfgContainer [2020-10-23 23:58:38,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:58:38,482 INFO L168 Benchmark]: Toolchain (without parser) took 26389.49 ms. Allocated memory was 151.0 MB in the beginning and 478.2 MB in the end (delta: 327.2 MB). Free memory was 126.5 MB in the beginning and 378.0 MB in the end (delta: -251.5 MB). Peak memory consumption was 291.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:38,483 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:58:38,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 105.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:38,485 INFO L168 Benchmark]: Boogie Preprocessor took 96.60 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:38,486 INFO L168 Benchmark]: RCFGBuilder took 1668.02 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 101.1 MB in the beginning and 131.0 MB in the end (delta: -29.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:38,487 INFO L168 Benchmark]: TraceAbstraction took 23943.15 ms. Allocated memory was 187.7 MB in the beginning and 478.2 MB in the end (delta: 290.5 MB). Free memory was 130.4 MB in the beginning and 378.0 MB in the end (delta: -247.6 MB). Peak memory consumption was 257.8 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:38,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 670.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 105.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.60 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1668.02 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 101.1 MB in the beginning and 131.0 MB in the end (delta: -29.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23943.15 ms. Allocated memory was 187.7 MB in the beginning and 478.2 MB in the end (delta: 290.5 MB). Free memory was 130.4 MB in the beginning and 378.0 MB in the end (delta: -247.6 MB). Peak memory consumption was 257.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=171, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=180, head={182:171}, methaneLevelCritical=151, pumpRunning=140, systemActive=139, waterLevel=1] [L50] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=171, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=180, head={182:171}, methaneLevelCritical=0, pumpRunning=140, systemActive=139, waterLevel=1] [L147] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=171, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={182:171}, methaneLevelCritical=0, pumpRunning=140, systemActive=139, waterLevel=1] [L288] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=171, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={182:171}, methaneLevelCritical=0, pumpRunning=0, systemActive=139, waterLevel=1] [L289] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=171, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={182:171}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L711] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=171, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L226] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L227] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L231] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L232] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L233] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L275] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L278] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L279] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L233] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L233] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L235] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L237] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L238] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L217] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L476] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L479] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L483] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L485] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L487] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L493] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L495] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L497] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L497] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L503] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L505] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L513] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L515] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L517] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L470] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L517] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L530] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L351] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L369] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L328] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L369] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L311] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L911] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L88] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L91] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L92] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L915] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L917] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L921] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L123] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L124] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L921] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L921] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L923] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L925] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L403] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L406] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L407] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L925] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L925] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L927] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L931] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product22.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 638 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 18.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1169 SDtfs, 2250 SDslu, 1486 SDs, 0 SdLazy, 3034 SolverSat, 720 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=388occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 368 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1060 NumberOfCodeBlocks, 1060 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 864 ConstructedInterpolants, 0 QuantifiedInterpolants, 372276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...