/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:12:43,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:12:43,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:12:43,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:12:43,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:12:43,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:12:43,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:12:43,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:12:43,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:12:43,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:12:43,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:12:43,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:12:43,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:12:43,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:12:43,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:12:43,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:12:43,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:12:43,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:12:43,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:12:43,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:12:43,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:12:43,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:12:43,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:12:43,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:12:43,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 04:12:43,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 04:12:43,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 04:12:43,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 04:12:43,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 04:12:43,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 04:12:43,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:12:43,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:12:43,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:12:43,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:12:43,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:12:43,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:12:43,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:12:43,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:12:43,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:12:43,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:12:43,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:12:43,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:12:44,008 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:12:44,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:12:44,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:12:44,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:12:44,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:12:44,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:12:44,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:12:44,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:12:44,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:12:44,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:12:44,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:12:44,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:12:44,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:12:44,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:12:44,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:12:44,018 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:12:44,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:12:44,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:12:44,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:12:44,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:12:44,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:12:44,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:12:44,019 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:12:44,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:12:44,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:12:44,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:12:44,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:12:44,434 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:12:44,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-11-07 04:12:44,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0214a989b/a740682b21734a8b95a0d46eee917237/FLAGcdadf232b [2020-11-07 04:12:45,230 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:12:45,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-11-07 04:12:45,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0214a989b/a740682b21734a8b95a0d46eee917237/FLAGcdadf232b [2020-11-07 04:12:45,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0214a989b/a740682b21734a8b95a0d46eee917237 [2020-11-07 04:12:45,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:12:45,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:12:45,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:12:45,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:12:45,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:12:45,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:45" (1/1) ... [2020-11-07 04:12:45,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4a0fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:45, skipping insertion in model container [2020-11-07 04:12:45,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:45" (1/1) ... [2020-11-07 04:12:45,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:12:45,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:12:46,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:12:46,026 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:12:46,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:12:46,181 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:12:46,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46 WrapperNode [2020-11-07 04:12:46,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:12:46,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:12:46,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:12:46,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:12:46,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... [2020-11-07 04:12:46,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... [2020-11-07 04:12:46,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... [2020-11-07 04:12:46,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... [2020-11-07 04:12:46,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... [2020-11-07 04:12:46,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... [2020-11-07 04:12:46,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... [2020-11-07 04:12:46,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:12:46,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:12:46,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:12:46,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:12:46,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:12:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:12:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:12:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 04:12:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:12:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 04:12:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 04:12:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 04:12:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 04:12:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:12:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 04:12:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 04:12:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 04:12:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 04:12:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 04:12:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 04:12:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 04:12:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 04:12:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 04:12:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 04:12:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:12:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 04:12:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 04:12:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 04:12:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 04:12:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 04:12:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 04:12:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 04:12:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 04:12:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 04:12:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 04:12:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 04:12:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 04:12:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 04:12:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 04:12:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 04:12:46,356 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 04:12:46,356 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 04:12:46,356 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 04:12:46,356 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 04:12:46,356 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 04:12:46,356 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 04:12:46,357 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 04:12:46,385 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 04:12:46,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 04:12:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:12:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:12:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:12:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:12:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:12:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 04:12:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 04:12:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 04:12:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 04:12:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 04:12:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 04:12:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 04:12:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 04:12:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 04:12:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 04:12:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 04:12:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 04:12:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 04:12:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:12:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 04:12:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 04:12:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 04:12:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 04:12:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 04:12:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:12:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 04:12:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 04:12:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:12:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 04:12:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 04:12:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:12:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 04:12:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 04:12:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 04:12:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 04:12:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 04:12:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 04:12:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 04:12:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 04:12:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:12:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 04:12:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 04:12:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 04:12:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 04:12:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 04:12:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 04:12:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 04:12:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 04:12:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 04:12:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 04:12:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 04:12:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 04:12:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 04:12:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 04:12:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 04:12:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:12:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:12:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:12:47,614 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:12:47,614 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 04:12:47,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:47 BoogieIcfgContainer [2020-11-07 04:12:47,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:12:47,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:12:47,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:12:47,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:12:47,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:12:45" (1/3) ... [2020-11-07 04:12:47,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8d2048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:47, skipping insertion in model container [2020-11-07 04:12:47,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:46" (2/3) ... [2020-11-07 04:12:47,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8d2048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:47, skipping insertion in model container [2020-11-07 04:12:47,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:47" (3/3) ... [2020-11-07 04:12:47,627 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-11-07 04:12:47,643 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:12:47,648 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 04:12:47,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 04:12:47,693 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:12:47,693 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:12:47,694 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:12:47,694 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:12:47,694 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:12:47,694 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:12:47,694 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:12:47,695 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:12:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-07 04:12:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 04:12:47,770 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:12:47,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:12:47,772 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:12:47,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:12:47,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2039354410, now seen corresponding path program 1 times [2020-11-07 04:12:47,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:12:47,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32672708] [2020-11-07 04:12:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:12:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,627 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:12:48,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:12:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:12:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:12:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:12:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:12:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:12:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:12:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:12:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:12:48,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32672708] [2020-11-07 04:12:48,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:12:48,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 04:12:48,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210993164] [2020-11-07 04:12:48,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 04:12:48,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:12:48,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 04:12:48,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 04:12:48,911 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-11-07 04:12:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:12:50,879 INFO L93 Difference]: Finished difference Result 586 states and 697 transitions. [2020-11-07 04:12:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 04:12:50,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 04:12:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:12:50,919 INFO L225 Difference]: With dead ends: 586 [2020-11-07 04:12:50,920 INFO L226 Difference]: Without dead ends: 354 [2020-11-07 04:12:50,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 04:12:50,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-11-07 04:12:51,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 308. [2020-11-07 04:12:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-11-07 04:12:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 338 transitions. [2020-11-07 04:12:51,181 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 338 transitions. Word has length 159 [2020-11-07 04:12:51,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:12:51,185 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 338 transitions. [2020-11-07 04:12:51,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 04:12:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 338 transitions. [2020-11-07 04:12:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 04:12:51,194 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:12:51,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:12:51,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:12:51,196 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:12:51,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:12:51,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1523405114, now seen corresponding path program 1 times [2020-11-07 04:12:51,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:12:51,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005221731] [2020-11-07 04:12:51,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:12:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,743 WARN L194 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:12:51,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:12:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:12:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:12:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:12:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:12:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 04:12:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:12:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 04:12:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:12:51,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005221731] [2020-11-07 04:12:51,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:12:51,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:12:51,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675151804] [2020-11-07 04:12:51,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:12:51,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:12:51,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:12:51,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:12:51,841 INFO L87 Difference]: Start difference. First operand 308 states and 338 transitions. Second operand 4 states. [2020-11-07 04:12:52,661 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:12:54,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:12:54,306 INFO L93 Difference]: Finished difference Result 490 states and 556 transitions. [2020-11-07 04:12:54,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 04:12:54,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 04:12:54,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:12:54,312 INFO L225 Difference]: With dead ends: 490 [2020-11-07 04:12:54,312 INFO L226 Difference]: Without dead ends: 337 [2020-11-07 04:12:54,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 04:12:54,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-11-07 04:12:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 298. [2020-11-07 04:12:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-07 04:12:54,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 325 transitions. [2020-11-07 04:12:54,431 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 325 transitions. Word has length 160 [2020-11-07 04:12:54,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:12:54,432 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 325 transitions. [2020-11-07 04:12:54,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:12:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 325 transitions. [2020-11-07 04:12:54,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 04:12:54,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:12:54,435 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] [2020-11-07 04:12:54,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:12:54,436 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:12:54,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:12:54,436 INFO L82 PathProgramCache]: Analyzing trace with hash 55606011, now seen corresponding path program 1 times [2020-11-07 04:12:54,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:12:54,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669759764] [2020-11-07 04:12:54,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:12:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:54,970 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:12:54,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:12:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:12:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:12:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:12:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:12:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 04:12:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 04:12:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 04:12:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 04:12:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:12:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:12:55,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669759764] [2020-11-07 04:12:55,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:12:55,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 04:12:55,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909673518] [2020-11-07 04:12:55,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 04:12:55,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:12:55,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 04:12:55,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 04:12:55,142 INFO L87 Difference]: Start difference. First operand 298 states and 325 transitions. Second operand 10 states. [2020-11-07 04:12:55,858 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:12:56,387 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:12:56,809 WARN L194 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:12:57,195 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:12:57,621 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:12:58,014 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:12:59,143 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:13:03,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:13:03,373 INFO L93 Difference]: Finished difference Result 835 states and 974 transitions. [2020-11-07 04:13:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 04:13:03,374 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 04:13:03,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:13:03,380 INFO L225 Difference]: With dead ends: 835 [2020-11-07 04:13:03,381 INFO L226 Difference]: Without dead ends: 652 [2020-11-07 04:13:03,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 04:13:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-11-07 04:13:03,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 551. [2020-11-07 04:13:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-11-07 04:13:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 620 transitions. [2020-11-07 04:13:03,666 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 620 transitions. Word has length 173 [2020-11-07 04:13:03,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:13:03,667 INFO L481 AbstractCegarLoop]: Abstraction has 551 states and 620 transitions. [2020-11-07 04:13:03,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 04:13:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 620 transitions. [2020-11-07 04:13:03,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 04:13:03,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:13:03,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:13:03,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:13:03,673 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:13:03,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:13:03,673 INFO L82 PathProgramCache]: Analyzing trace with hash -904576683, now seen corresponding path program 1 times [2020-11-07 04:13:03,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:13:03,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658900635] [2020-11-07 04:13:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:13:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,176 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:13:04,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:13:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:13:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:13:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:13:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:13:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 04:13:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 04:13:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 04:13:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 04:13:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:13:04,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:13:04,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658900635] [2020-11-07 04:13:04,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:13:04,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:13:04,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840403334] [2020-11-07 04:13:04,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:13:04,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:13:04,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:13:04,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:13:04,355 INFO L87 Difference]: Start difference. First operand 551 states and 620 transitions. Second operand 9 states. [2020-11-07 04:13:05,081 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:13:07,927 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:08,430 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:13:08,973 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:09,490 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:13:09,902 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:13:10,305 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:10,723 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:13:12,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:13:12,348 INFO L93 Difference]: Finished difference Result 1512 states and 1824 transitions. [2020-11-07 04:13:12,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 04:13:12,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 04:13:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:13:12,357 INFO L225 Difference]: With dead ends: 1512 [2020-11-07 04:13:12,358 INFO L226 Difference]: Without dead ends: 1076 [2020-11-07 04:13:12,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 04:13:12,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-11-07 04:13:12,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 969. [2020-11-07 04:13:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2020-11-07 04:13:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1117 transitions. [2020-11-07 04:13:12,836 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1117 transitions. Word has length 178 [2020-11-07 04:13:12,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:13:12,838 INFO L481 AbstractCegarLoop]: Abstraction has 969 states and 1117 transitions. [2020-11-07 04:13:12,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:13:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1117 transitions. [2020-11-07 04:13:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 04:13:12,848 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:13:12,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:13:12,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:13:12,849 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:13:12,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:13:12,850 INFO L82 PathProgramCache]: Analyzing trace with hash 167131372, now seen corresponding path program 1 times [2020-11-07 04:13:12,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:13:12,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386395328] [2020-11-07 04:13:12,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:13:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:13:12,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:13:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:13:13,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:13:13,252 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:13:13,253 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:13:13,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 04:13:13,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:13:13 BoogieIcfgContainer [2020-11-07 04:13:13,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:13:13,543 INFO L168 Benchmark]: Toolchain (without parser) took 27995.44 ms. Allocated memory was 151.0 MB in the beginning and 585.1 MB in the end (delta: 434.1 MB). Free memory was 126.4 MB in the beginning and 463.0 MB in the end (delta: -336.7 MB). Peak memory consumption was 98.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:13,544 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:13:13,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.78 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 104.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:13,552 INFO L168 Benchmark]: Boogie Preprocessor took 93.73 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 100.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:13,554 INFO L168 Benchmark]: RCFGBuilder took 1340.11 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 99.9 MB in the beginning and 121.7 MB in the end (delta: -21.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:13,555 INFO L168 Benchmark]: TraceAbstraction took 25921.13 ms. Allocated memory was 187.7 MB in the beginning and 585.1 MB in the end (delta: 397.4 MB). Free memory was 121.2 MB in the beginning and 463.0 MB in the end (delta: -341.8 MB). Peak memory consumption was 55.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:13:13,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 625.78 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 104.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.73 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 100.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1340.11 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 99.9 MB in the beginning and 121.7 MB in the end (delta: -21.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25921.13 ms. Allocated memory was 187.7 MB in the beginning and 585.1 MB in the end (delta: 397.4 MB). Free memory was 121.2 MB in the beginning and 463.0 MB in the end (delta: -341.8 MB). Peak memory consumption was 55.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={182:166}, methaneLevelCritical=148, pumpRunning=136, systemActive=135, waterLevel=141] [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=136, systemActive=135, waterLevel=141] [L589] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=136, systemActive=135, waterLevel=1] [L590] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=136, systemActive=135, waterLevel=1] [L696] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=135, waterLevel=1] [L697] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] 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] [L124] 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] [L128] 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] [L129] 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] [L130] 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] [L538] 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] [L541] 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] [L542] 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] [L130] 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] [L130] 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] [L132] 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] [L134] 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] [L135] 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] [L114] 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] [L943] 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] [L944] 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] [L945] 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] [L946] 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] [L947] 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] [L950] 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] [L952] 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] [L954] 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] [L960] 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] [L962] 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] [L964] 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] [L607] 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] [L608] 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] [L964] 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] [L970] 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] [L972] 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] [L980] tmp___2 = __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, tmp___2=0, waterLevel=2] [L982] COND FALSE !(\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=0, waterLevel=2] [L988] tmp___1 = __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___1=1, tmp___2=0, waterLevel=2] [L990] COND TRUE \read(tmp___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, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L992] CALL stopSystem() 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] [L922] COND FALSE !(\read(pumpRunning)) 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] [L929] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L992] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L999] 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=0, waterLevel=2] [L703] 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=0, waterLevel=2] [L710] COND FALSE !(\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=0, waterLevel=2] [L718] 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=0, waterLevel=2] [L552] 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=0, waterLevel=2] [L553] 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=0, waterLevel=2] [L554] 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=0, waterLevel=2] [L558] 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=0, waterLevel=2] [L628] 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=0, waterLevel=2] [L631] 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=0, waterLevel=2] [L632] 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=0, waterLevel=2] [L558] 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=0, waterLevel=2] [L558] 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=0, tmp=0, waterLevel=2] [L560] 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=0, tmp=0, waterLevel=2] [L564] 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=0, waterLevel=2] [L660] 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=0, waterLevel=2] [L663] 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=0, waterLevel=2] [L664] 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=0, waterLevel=2] [L564] 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=0, tmp=0, waterLevel=2] [L564] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L566] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L568] 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=0, waterLevel=2] [L836] 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=0, waterLevel=2] [L839] 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=0, waterLevel=2] [L840] 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=0, waterLevel=2] [L568] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L568] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L570] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L574] 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=0, waterLevel=2] [L1015] 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=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product56.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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 678 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1188 SDtfs, 1676 SDslu, 1663 SDs, 0 SdLazy, 3883 SolverSat, 585 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=969occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 293 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 853 NumberOfCodeBlocks, 853 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 666 ConstructedInterpolants, 0 QuantifiedInterpolants, 276076 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...