/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:23:01,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:23:01,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:23:02,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:23:02,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:23:02,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:23:02,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:23:02,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:23:02,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:23:02,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:23:02,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:23:02,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:23:02,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:23:02,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:23:02,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:23:02,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:23:02,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:23:02,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:23:02,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:23:02,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:23:02,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:23:02,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:23:02,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:23:02,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:23:02,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:23:02,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:23:02,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:23:02,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:23:02,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:23:02,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:23:02,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:23:02,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:23:02,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:23:02,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:23:02,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:23:02,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:23:02,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:23:02,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:23:02,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:23:02,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:23:02,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:23:02,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:23:02,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:23:02,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:23:02,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:23:02,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:23:02,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:23:02,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:23:02,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:23:02,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:23:02,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:23:02,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:23:02,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:23:02,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:23:02,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:23:02,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:23:02,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:23:02,104 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:23:02,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:23:02,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:23:02,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:23:02,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:23:02,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:23:02,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:23:02,106 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-08-22 21:23:02,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:23:02,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:23:02,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:23:02,433 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:23:02,433 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:23:02,433 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-08-22 21:23:02,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ddb7f741/830a1dbfcc304593aa8c331f5d68e162/FLAGaf984393f [2020-08-22 21:23:03,015 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:23:03,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-08-22 21:23:03,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ddb7f741/830a1dbfcc304593aa8c331f5d68e162/FLAGaf984393f [2020-08-22 21:23:03,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ddb7f741/830a1dbfcc304593aa8c331f5d68e162 [2020-08-22 21:23:03,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:23:03,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:23:03,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:03,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:23:03,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:23:03,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:03,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cc7f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03, skipping insertion in model container [2020-08-22 21:23:03,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:03,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:23:03,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:23:03,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:03,873 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:23:03,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:03,995 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:23:03,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03 WrapperNode [2020-08-22 21:23:03,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:03,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:23:03,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:23:03,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:23:04,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:04,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:04,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:04,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:04,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:04,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:04,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (1/1) ... [2020-08-22 21:23:04,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:23:04,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:23:04,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:23:04,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:23:04,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (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 [2020-08-22 21:23:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:23:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:23:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:23:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:23:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:23:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:23:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:23:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:23:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:23:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:23:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:23:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:23:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 21:23:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:23:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:23:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:23:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:23:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:23:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:23:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:23:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:23:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:23:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:23:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:23:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:23:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 21:23:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:23:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:23:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:23:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:23:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:23:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 21:23:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:23:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:23:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:23:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:23:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:23:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:23:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:23:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:23:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:23:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:23:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:23:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:23:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:23:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:23:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:23:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:23:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:23:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:23:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:23:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:23:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:23:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:23:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:23:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:23:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:23:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 21:23:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:23:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:23:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:23:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:23:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:23:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:23:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:23:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:23:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:23:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:23:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:23:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:23:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:23:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:23:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:23:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:23:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 21:23:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 21:23:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:23:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:23:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:23:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:23:05,309 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:23:05,309 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:23:05,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:05 BoogieIcfgContainer [2020-08-22 21:23:05,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:23:05,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:23:05,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:23:05,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:23:05,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:23:03" (1/3) ... [2020-08-22 21:23:05,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56885ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:05, skipping insertion in model container [2020-08-22 21:23:05,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:03" (2/3) ... [2020-08-22 21:23:05,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56885ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:05, skipping insertion in model container [2020-08-22 21:23:05,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:05" (3/3) ... [2020-08-22 21:23:05,324 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-08-22 21:23:05,335 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:23:05,345 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:23:05,360 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:23:05,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:23:05,386 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:23:05,386 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:23:05,386 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:23:05,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:23:05,387 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:23:05,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:23:05,387 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:23:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-08-22 21:23:05,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:23:05,432 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:05,433 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] [2020-08-22 21:23:05,434 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:05,441 INFO L82 PathProgramCache]: Analyzing trace with hash 984796511, now seen corresponding path program 1 times [2020-08-22 21:23:05,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:05,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77562678] [2020-08-22 21:23:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,183 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:06,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:23:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:23:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:23:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:06,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77562678] [2020-08-22 21:23:06,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:06,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:23:06,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454638520] [2020-08-22 21:23:06,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:23:06,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:06,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:23:06,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:23:06,370 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-08-22 21:23:07,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:07,612 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-08-22 21:23:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:23:07,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:23:07,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:07,644 INFO L225 Difference]: With dead ends: 435 [2020-08-22 21:23:07,644 INFO L226 Difference]: Without dead ends: 274 [2020-08-22 21:23:07,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:23:07,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-08-22 21:23:07,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-08-22 21:23:07,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-08-22 21:23:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-08-22 21:23:07,819 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-08-22 21:23:07,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:07,820 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-08-22 21:23:07,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:23:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-08-22 21:23:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:23:07,825 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:07,826 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] [2020-08-22 21:23:07,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:23:07,826 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:07,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1074714265, now seen corresponding path program 1 times [2020-08-22 21:23:07,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:07,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504208629] [2020-08-22 21:23:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,233 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:23:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:23:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:23:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:08,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504208629] [2020-08-22 21:23:08,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:08,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:23:08,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151242696] [2020-08-22 21:23:08,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:23:08,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:08,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:23:08,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:23:08,324 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-08-22 21:23:08,906 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:23:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:09,667 INFO L93 Difference]: Finished difference Result 352 states and 392 transitions. [2020-08-22 21:23:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:23:09,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:23:09,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:09,673 INFO L225 Difference]: With dead ends: 352 [2020-08-22 21:23:09,673 INFO L226 Difference]: Without dead ends: 257 [2020-08-22 21:23:09,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:23:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-08-22 21:23:09,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-08-22 21:23:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-08-22 21:23:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 240 transitions. [2020-08-22 21:23:09,788 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 240 transitions. Word has length 154 [2020-08-22 21:23:09,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:09,789 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 240 transitions. [2020-08-22 21:23:09,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:23:09,789 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 240 transitions. [2020-08-22 21:23:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 21:23:09,792 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:09,792 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] [2020-08-22 21:23:09,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:23:09,793 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:09,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:09,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1460051564, now seen corresponding path program 1 times [2020-08-22 21:23:09,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:09,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202141363] [2020-08-22 21:23:09,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,105 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:10,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:23:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:23:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 21:23:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:10,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:10,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202141363] [2020-08-22 21:23:10,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:10,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:23:10,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137246485] [2020-08-22 21:23:10,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:23:10,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:10,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:23:10,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:23:10,259 INFO L87 Difference]: Start difference. First operand 225 states and 240 transitions. Second operand 9 states. [2020-08-22 21:23:10,838 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:11,261 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:23:11,607 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:23:11,924 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:12,173 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:12,392 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:13,643 INFO L93 Difference]: Finished difference Result 372 states and 417 transitions. [2020-08-22 21:23:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 21:23:13,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 21:23:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:13,648 INFO L225 Difference]: With dead ends: 372 [2020-08-22 21:23:13,648 INFO L226 Difference]: Without dead ends: 257 [2020-08-22 21:23:13,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-08-22 21:23:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-08-22 21:23:13,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-08-22 21:23:13,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-08-22 21:23:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-08-22 21:23:13,718 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 163 [2020-08-22 21:23:13,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:13,719 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-08-22 21:23:13,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:23:13,719 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-08-22 21:23:13,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-22 21:23:13,721 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:13,721 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] [2020-08-22 21:23:13,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:23:13,722 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:13,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:13,722 INFO L82 PathProgramCache]: Analyzing trace with hash 973971077, now seen corresponding path program 1 times [2020-08-22 21:23:13,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:13,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063460284] [2020-08-22 21:23:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,025 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:14,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 21:23:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:23:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 21:23:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 21:23:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 21:23:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:14,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063460284] [2020-08-22 21:23:14,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:14,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:23:14,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002033054] [2020-08-22 21:23:14,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:23:14,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:14,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:23:14,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:23:14,239 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-08-22 21:23:14,732 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:16,227 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:16,482 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:16,781 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:17,057 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:17,296 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:17,591 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:17,814 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:18,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:18,381 INFO L93 Difference]: Finished difference Result 522 states and 613 transitions. [2020-08-22 21:23:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 21:23:18,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-08-22 21:23:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:18,393 INFO L225 Difference]: With dead ends: 522 [2020-08-22 21:23:18,394 INFO L226 Difference]: Without dead ends: 407 [2020-08-22 21:23:18,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:23:18,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-08-22 21:23:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 332. [2020-08-22 21:23:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-08-22 21:23:18,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 363 transitions. [2020-08-22 21:23:18,511 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 363 transitions. Word has length 171 [2020-08-22 21:23:18,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:18,512 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 363 transitions. [2020-08-22 21:23:18,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:23:18,512 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 363 transitions. [2020-08-22 21:23:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-22 21:23:18,515 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:18,516 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] [2020-08-22 21:23:18,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:23:18,516 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:18,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1376953546, now seen corresponding path program 1 times [2020-08-22 21:23:18,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:18,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421795834] [2020-08-22 21:23:18,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,795 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:18,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-22 21:23:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:23:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:23:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:23:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-08-22 21:23:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-08-22 21:23:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:18,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421795834] [2020-08-22 21:23:18,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:18,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:23:18,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198906763] [2020-08-22 21:23:18,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:23:18,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:18,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:23:18,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:23:18,968 INFO L87 Difference]: Start difference. First operand 332 states and 363 transitions. Second operand 6 states. [2020-08-22 21:23:19,441 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:20,013 INFO L93 Difference]: Finished difference Result 501 states and 567 transitions. [2020-08-22 21:23:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 21:23:20,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-08-22 21:23:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:20,017 INFO L225 Difference]: With dead ends: 501 [2020-08-22 21:23:20,017 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 21:23:20,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:23:20,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 21:23:20,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 258. [2020-08-22 21:23:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-08-22 21:23:20,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 273 transitions. [2020-08-22 21:23:20,092 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 273 transitions. Word has length 176 [2020-08-22 21:23:20,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:20,093 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 273 transitions. [2020-08-22 21:23:20,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:23:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 273 transitions. [2020-08-22 21:23:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-22 21:23:20,095 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:20,095 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] [2020-08-22 21:23:20,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:23:20,096 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:20,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1373722854, now seen corresponding path program 1 times [2020-08-22 21:23:20,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:20,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811896342] [2020-08-22 21:23:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:20,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:20,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:20,395 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:23:20,396 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:23:20,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:23:20,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:23:20 BoogieIcfgContainer [2020-08-22 21:23:20,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:23:20,692 INFO L168 Benchmark]: Toolchain (without parser) took 17327.73 ms. Allocated memory was 146.8 MB in the beginning and 565.7 MB in the end (delta: 418.9 MB). Free memory was 103.0 MB in the beginning and 493.8 MB in the end (delta: -390.8 MB). Peak memory consumption was 436.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:20,698 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 21:23:20,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.12 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 102.8 MB in the beginning and 170.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:20,701 INFO L168 Benchmark]: Boogie Preprocessor took 86.51 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 166.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:20,702 INFO L168 Benchmark]: RCFGBuilder took 1232.53 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 166.3 MB in the beginning and 173.1 MB in the end (delta: -6.7 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:20,703 INFO L168 Benchmark]: TraceAbstraction took 15371.40 ms. Allocated memory was 234.9 MB in the beginning and 565.7 MB in the end (delta: 330.8 MB). Free memory was 173.1 MB in the beginning and 493.8 MB in the end (delta: -320.8 MB). Peak memory consumption was 418.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:20,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.12 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 102.8 MB in the beginning and 170.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.51 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 166.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1232.53 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 166.3 MB in the beginning and 173.1 MB in the end (delta: -6.7 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15371.40 ms. Allocated memory was 234.9 MB in the beginning and 565.7 MB in the end (delta: 330.8 MB). Free memory was 173.1 MB in the beginning and 493.8 MB in the end (delta: -320.8 MB). Peak memory consumption was 418.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=172, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=142, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=148, pumpRunning=137, systemActive=136, waterLevel=142] [L458] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=142, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=148, pumpRunning=137, systemActive=136, waterLevel=1] [L459] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=142, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=0, pumpRunning=137, systemActive=136, waterLevel=1] [L585] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=137, systemActive=136, waterLevel=1] [L686] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=136, waterLevel=1] [L687] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L661] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L666] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L667] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L576] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L579] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L580] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L668] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L668] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L670] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L672] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L673] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L858] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L866] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L868] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L874] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L876] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L878] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L476] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L878] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L884] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L886] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L894] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L896] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L909] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L700] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L725] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L46] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L497] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L500] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L501] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L51] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L53] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L532] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L533] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L57] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L59] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L792] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L795] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L796] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L61] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L63] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L67] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L82] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1034 SDtfs, 1392 SDslu, 1229 SDs, 0 SdLazy, 2431 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred 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: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 993 NumberOfCodeBlocks, 993 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 812 ConstructedInterpolants, 0 QuantifiedInterpolants, 334374 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...