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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:49,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:49,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:49,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:49,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:49,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:49,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:49,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:49,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:49,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:49,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:49,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:49,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:49,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:49,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:49,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:49,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:49,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:49,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:49,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:49,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:49,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:49,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:49,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:49,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:49,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:49,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:49,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:49,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:49,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:49,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:49,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:49,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:49,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:49,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:49,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:49,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:49,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:49,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:49,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:49,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:49,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:47:49,433 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:49,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:49,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:49,434 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:49,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:49,435 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:49,435 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:49,435 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:49,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:49,436 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:49,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:49,436 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:49,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:49,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:49,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:49,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:49,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:49,438 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:49,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:49,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:49,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:49,438 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:49,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:49,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:49,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:49,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:49,439 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:49,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:49,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:49,440 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:49,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:49,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:49,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:49,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:49,492 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:49,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2019-09-10 02:47:49,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7275e1a9/aa5ad63958364139b6428990b8b71781/FLAGf9b44cc68 [2019-09-10 02:47:50,130 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:50,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2019-09-10 02:47:50,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7275e1a9/aa5ad63958364139b6428990b8b71781/FLAGf9b44cc68 [2019-09-10 02:47:50,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7275e1a9/aa5ad63958364139b6428990b8b71781 [2019-09-10 02:47:50,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:50,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:50,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:50,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:50,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:50,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:50" (1/1) ... [2019-09-10 02:47:50,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a4378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:50, skipping insertion in model container [2019-09-10 02:47:50,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:50" (1/1) ... [2019-09-10 02:47:50,466 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:50,519 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:50,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:50,969 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:51,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:51,125 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:51,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51 WrapperNode [2019-09-10 02:47:51,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:51,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:51,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:51,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:51,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (1/1) ... [2019-09-10 02:47:51,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:51,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:51,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:51,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:51,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (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 [2019-09-10 02:47:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:47:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:47:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:47:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:47:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:47:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:47:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:47:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:47:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:52,312 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:52,312 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:52,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:52 BoogieIcfgContainer [2019-09-10 02:47:52,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:52,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:52,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:52,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:52,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:50" (1/3) ... [2019-09-10 02:47:52,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0eab5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:52, skipping insertion in model container [2019-09-10 02:47:52,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:51" (2/3) ... [2019-09-10 02:47:52,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0eab5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:52, skipping insertion in model container [2019-09-10 02:47:52,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:52" (3/3) ... [2019-09-10 02:47:52,323 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2019-09-10 02:47:52,333 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:52,342 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:52,361 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:52,390 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:52,390 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:52,391 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:52,391 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:52,391 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:52,391 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:52,391 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:52,391 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2019-09-10 02:47:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:52,423 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:52,424 INFO L399 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] [2019-09-10 02:47:52,427 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:52,434 INFO L82 PathProgramCache]: Analyzing trace with hash -749162492, now seen corresponding path program 1 times [2019-09-10 02:47:52,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:52,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:52,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,479 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:52,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:52,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:52,791 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:52,797 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:52,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:52,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:52,817 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2019-09-10 02:47:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:52,866 INFO L93 Difference]: Finished difference Result 134 states and 157 transitions. [2019-09-10 02:47:52,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:52,868 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:52,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:52,889 INFO L225 Difference]: With dead ends: 134 [2019-09-10 02:47:52,890 INFO L226 Difference]: Without dead ends: 123 [2019-09-10 02:47:52,891 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:52,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-10 02:47:52,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-10 02:47:52,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-10 02:47:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2019-09-10 02:47:52,942 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2019-09-10 02:47:52,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:52,943 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2019-09-10 02:47:52,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2019-09-10 02:47:52,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:52,947 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:52,947 INFO L399 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] [2019-09-10 02:47:52,947 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:52,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:52,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1435333190, now seen corresponding path program 1 times [2019-09-10 02:47:52,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:52,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:52,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,950 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:53,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:53,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:53,081 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:53,083 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:53,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:53,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:53,085 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 3 states. [2019-09-10 02:47:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:53,104 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2019-09-10 02:47:53,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:53,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:53,107 INFO L225 Difference]: With dead ends: 114 [2019-09-10 02:47:53,108 INFO L226 Difference]: Without dead ends: 114 [2019-09-10 02:47:53,109 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-10 02:47:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-10 02:47:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-10 02:47:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2019-09-10 02:47:53,122 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2019-09-10 02:47:53,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:53,123 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2019-09-10 02:47:53,123 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2019-09-10 02:47:53,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:47:53,125 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:53,125 INFO L399 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] [2019-09-10 02:47:53,126 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:53,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:53,130 INFO L82 PathProgramCache]: Analyzing trace with hash 325618258, now seen corresponding path program 1 times [2019-09-10 02:47:53,130 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:53,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:53,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,131 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:53,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:53,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:53,207 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:53,208 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:53,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:53,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:53,211 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 3 states. [2019-09-10 02:47:53,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:53,235 INFO L93 Difference]: Finished difference Result 114 states and 132 transitions. [2019-09-10 02:47:53,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:53,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-10 02:47:53,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:53,239 INFO L225 Difference]: With dead ends: 114 [2019-09-10 02:47:53,241 INFO L226 Difference]: Without dead ends: 114 [2019-09-10 02:47:53,241 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:53,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-10 02:47:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-10 02:47:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-10 02:47:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2019-09-10 02:47:53,262 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 51 [2019-09-10 02:47:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:53,263 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2019-09-10 02:47:53,264 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2019-09-10 02:47:53,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:47:53,266 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:53,267 INFO L399 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] [2019-09-10 02:47:53,267 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:53,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:53,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1759847866, now seen corresponding path program 1 times [2019-09-10 02:47:53,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:53,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:53,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:53,269 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:53,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:53,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:47:53,484 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:53,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:47:53,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:47:53,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:47:53,486 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 5 states. [2019-09-10 02:47:54,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:54,140 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2019-09-10 02:47:54,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:47:54,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-10 02:47:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:54,146 INFO L225 Difference]: With dead ends: 208 [2019-09-10 02:47:54,146 INFO L226 Difference]: Without dead ends: 208 [2019-09-10 02:47:54,147 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:54,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-09-10 02:47:54,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 190. [2019-09-10 02:47:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-09-10 02:47:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2019-09-10 02:47:54,169 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 64 [2019-09-10 02:47:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:54,170 INFO L475 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2019-09-10 02:47:54,170 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:47:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2019-09-10 02:47:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 02:47:54,172 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:54,174 INFO L399 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] [2019-09-10 02:47:54,174 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:54,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:54,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1017680522, now seen corresponding path program 1 times [2019-09-10 02:47:54,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:54,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:54,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:54,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:54,177 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:54,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:54,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:54,361 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:54,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:54,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:54,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:54,363 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand 6 states. [2019-09-10 02:47:54,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:54,571 INFO L93 Difference]: Finished difference Result 341 states and 391 transitions. [2019-09-10 02:47:54,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:54,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-09-10 02:47:54,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:54,576 INFO L225 Difference]: With dead ends: 341 [2019-09-10 02:47:54,576 INFO L226 Difference]: Without dead ends: 341 [2019-09-10 02:47:54,577 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:47:54,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-09-10 02:47:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 335. [2019-09-10 02:47:54,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-09-10 02:47:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 384 transitions. [2019-09-10 02:47:54,602 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 384 transitions. Word has length 78 [2019-09-10 02:47:54,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:54,603 INFO L475 AbstractCegarLoop]: Abstraction has 335 states and 384 transitions. [2019-09-10 02:47:54,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 384 transitions. [2019-09-10 02:47:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 02:47:54,605 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:54,606 INFO L399 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] [2019-09-10 02:47:54,606 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:54,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:54,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1476513266, now seen corresponding path program 1 times [2019-09-10 02:47:54,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:54,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:54,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:54,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:54,608 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:54,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:54,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:54,748 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:54,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:54,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:54,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:54,750 INFO L87 Difference]: Start difference. First operand 335 states and 384 transitions. Second operand 7 states. [2019-09-10 02:47:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,356 INFO L93 Difference]: Finished difference Result 365 states and 431 transitions. [2019-09-10 02:47:55,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:47:55,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-09-10 02:47:55,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:55,360 INFO L225 Difference]: With dead ends: 365 [2019-09-10 02:47:55,360 INFO L226 Difference]: Without dead ends: 365 [2019-09-10 02:47:55,360 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:47:55,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-09-10 02:47:55,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 335. [2019-09-10 02:47:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-09-10 02:47:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 383 transitions. [2019-09-10 02:47:55,379 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 383 transitions. Word has length 82 [2019-09-10 02:47:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:55,380 INFO L475 AbstractCegarLoop]: Abstraction has 335 states and 383 transitions. [2019-09-10 02:47:55,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:55,380 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 383 transitions. [2019-09-10 02:47:55,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:47:55,382 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,382 INFO L399 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] [2019-09-10 02:47:55,382 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1573868364, now seen corresponding path program 1 times [2019-09-10 02:47:55,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:55,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:55,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:55,461 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:55,461 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:55,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:55,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:55,462 INFO L87 Difference]: Start difference. First operand 335 states and 383 transitions. Second operand 6 states. [2019-09-10 02:47:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,492 INFO L93 Difference]: Finished difference Result 345 states and 393 transitions. [2019-09-10 02:47:55,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:55,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-09-10 02:47:55,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:55,498 INFO L225 Difference]: With dead ends: 345 [2019-09-10 02:47:55,498 INFO L226 Difference]: Without dead ends: 345 [2019-09-10 02:47:55,499 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-09-10 02:47:55,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2019-09-10 02:47:55,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-09-10 02:47:55,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2019-09-10 02:47:55,522 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 83 [2019-09-10 02:47:55,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:55,522 INFO L475 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2019-09-10 02:47:55,523 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:55,523 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2019-09-10 02:47:55,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:47:55,528 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,528 INFO L399 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] [2019-09-10 02:47:55,528 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1596500618, now seen corresponding path program 1 times [2019-09-10 02:47:55,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,530 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:55,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:55,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:47:55,649 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:55,650 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:47:55,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:47:55,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:55,652 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 8 states. [2019-09-10 02:47:55,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,683 INFO L93 Difference]: Finished difference Result 359 states and 407 transitions. [2019-09-10 02:47:55,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:55,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2019-09-10 02:47:55,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:55,688 INFO L225 Difference]: With dead ends: 359 [2019-09-10 02:47:55,695 INFO L226 Difference]: Without dead ends: 359 [2019-09-10 02:47:55,696 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:55,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-09-10 02:47:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 353. [2019-09-10 02:47:55,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2019-09-10 02:47:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 401 transitions. [2019-09-10 02:47:55,714 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 401 transitions. Word has length 83 [2019-09-10 02:47:55,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:55,715 INFO L475 AbstractCegarLoop]: Abstraction has 353 states and 401 transitions. [2019-09-10 02:47:55,715 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:47:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 401 transitions. [2019-09-10 02:47:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:47:55,717 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,717 INFO L399 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] [2019-09-10 02:47:55,717 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1672974679, now seen corresponding path program 1 times [2019-09-10 02:47:55,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,721 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:55,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:55,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:47:55,800 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:55,801 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:47:55,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:47:55,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:55,801 INFO L87 Difference]: Start difference. First operand 353 states and 401 transitions. Second operand 4 states. [2019-09-10 02:47:55,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,994 INFO L93 Difference]: Finished difference Result 738 states and 881 transitions. [2019-09-10 02:47:55,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:47:55,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2019-09-10 02:47:55,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:56,000 INFO L225 Difference]: With dead ends: 738 [2019-09-10 02:47:56,001 INFO L226 Difference]: Without dead ends: 738 [2019-09-10 02:47:56,002 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:56,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2019-09-10 02:47:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 477. [2019-09-10 02:47:56,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-09-10 02:47:56,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 538 transitions. [2019-09-10 02:47:56,033 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 538 transitions. Word has length 83 [2019-09-10 02:47:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:56,035 INFO L475 AbstractCegarLoop]: Abstraction has 477 states and 538 transitions. [2019-09-10 02:47:56,035 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:47:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 538 transitions. [2019-09-10 02:47:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 02:47:56,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:56,040 INFO L399 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] [2019-09-10 02:47:56,041 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:56,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1457224847, now seen corresponding path program 1 times [2019-09-10 02:47:56,041 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:56,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:56,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,043 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:56,745 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:47:56,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:47:56 BoogieIcfgContainer [2019-09-10 02:47:56,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:47:56,947 INFO L168 Benchmark]: Toolchain (without parser) took 6498.13 ms. Allocated memory was 132.6 MB in the beginning and 322.4 MB in the end (delta: 189.8 MB). Free memory was 87.5 MB in the beginning and 200.2 MB in the end (delta: -112.7 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:56,947 INFO L168 Benchmark]: CDTParser took 2.22 ms. Allocated memory is still 132.6 MB. Free memory is still 106.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:47:56,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.17 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 87.5 MB in the beginning and 164.7 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:56,951 INFO L168 Benchmark]: Boogie Preprocessor took 91.99 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 161.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:56,953 INFO L168 Benchmark]: RCFGBuilder took 1094.75 ms. Allocated memory was 200.3 MB in the beginning and 223.3 MB in the end (delta: 23.1 MB). Free memory was 161.0 MB in the beginning and 194.2 MB in the end (delta: -33.2 MB). Peak memory consumption was 91.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:56,959 INFO L168 Benchmark]: TraceAbstraction took 4628.04 ms. Allocated memory was 223.3 MB in the beginning and 322.4 MB in the end (delta: 99.1 MB). Free memory was 194.2 MB in the beginning and 200.2 MB in the end (delta: -6.0 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:56,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.22 ms. Allocated memory is still 132.6 MB. Free memory is still 106.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.17 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 87.5 MB in the beginning and 164.7 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.99 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 161.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1094.75 ms. Allocated memory was 200.3 MB in the beginning and 223.3 MB in the end (delta: 23.1 MB). Free memory was 161.0 MB in the beginning and 194.2 MB in the end (delta: -33.2 MB). Peak memory consumption was 91.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4628.04 ms. Allocated memory was 223.3 MB in the beginning and 322.4 MB in the end (delta: 99.1 MB). Free memory was 194.2 MB in the beginning and 200.2 MB in the end (delta: -6.0 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] 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] [L492] 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] [L493] 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] [L494] 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] [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] 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] [L494] 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] [L494] tmp = valid_product() [L496] 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] [L498] 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] [L499] 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] [L478] 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] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] 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] [L776] 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] [L778] 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] [L784] tmp = __VERIFIER_nondet_int() [L786] 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=9, waterLevel=1] [L788] 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] [L850] COND TRUE waterLevel < 2 [L851] 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] [L788] 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=9, waterLevel=2] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \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=9, tmp___0=8, waterLevel=2] [L798] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L798] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=9, tmp___0=8, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=9, tmp___0=8, tmp___2=8, waterLevel=2] [L819] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L624] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L753] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L912] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L753] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L629] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L633] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L678] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L633] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L668] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L604] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L610] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] int tmp ; [L515] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L519] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L523] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L527] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L543] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 225 locations, 1 error locations. UNSAFE Result, 4.5s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1307 SDtfs, 716 SDslu, 2433 SDs, 0 SdLazy, 819 SolverSat, 206 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 321 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 73287 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...