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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:56:47,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:56:47,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:56:47,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:56:47,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:56:47,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:56:47,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:56:47,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:56:47,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:56:47,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:56:47,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:56:47,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:56:47,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:56:47,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:56:47,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:56:47,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:56:47,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:56:47,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:56:47,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:56:47,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:56:47,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:56:47,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:56:47,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:56:47,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:56:47,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:56:47,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:56:47,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:56:47,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:56:47,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:56:47,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:56:47,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:56:47,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:56:47,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:56:47,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:56:47,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:56:47,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:56:47,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:56:47,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:56:47,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:56:47,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:56:47,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:56:47,416 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 [2019-10-03 02:56:47,430 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:56:47,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:56:47,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:56:47,431 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:56:47,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:56:47,432 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:56:47,432 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:56:47,432 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:56:47,433 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:56:47,433 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:56:47,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:56:47,434 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:56:47,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:56:47,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:56:47,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:56:47,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:56:47,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:56:47,435 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:56:47,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:56:47,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:56:47,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:56:47,436 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:56:47,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:56:47,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:47,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:56:47,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:56:47,437 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:56:47,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:56:47,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:56:47,437 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:56:47,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:56:47,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:56:47,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:56:47,489 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:56:47,489 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:56:47,490 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product21.cil.c [2019-10-03 02:56:47,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/770ec70c3/ce9e78c8ff674bfab6549310536e1334/FLAG3dad90137 [2019-10-03 02:56:48,096 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:56:48,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product21.cil.c [2019-10-03 02:56:48,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/770ec70c3/ce9e78c8ff674bfab6549310536e1334/FLAG3dad90137 [2019-10-03 02:56:48,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/770ec70c3/ce9e78c8ff674bfab6549310536e1334 [2019-10-03 02:56:48,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:56:48,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:56:48,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:48,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:56:48,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:56:48,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:48" (1/1) ... [2019-10-03 02:56:48,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323f29ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:48, skipping insertion in model container [2019-10-03 02:56:48,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:48" (1/1) ... [2019-10-03 02:56:48,447 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:56:48,500 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:56:49,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:49,047 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:56:49,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:49,214 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:56:49,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49 WrapperNode [2019-10-03 02:56:49,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:49,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:56:49,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:56:49,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:56:49,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (1/1) ... [2019-10-03 02:56:49,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (1/1) ... [2019-10-03 02:56:49,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (1/1) ... [2019-10-03 02:56:49,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (1/1) ... [2019-10-03 02:56:49,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (1/1) ... [2019-10-03 02:56:49,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (1/1) ... [2019-10-03 02:56:49,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (1/1) ... [2019-10-03 02:56:49,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:56:49,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:56:49,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:56:49,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:56:49,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (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 [2019-10-03 02:56:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:56:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:56:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:56:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:56:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:56:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:56:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:56:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:56:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:56:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:56:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:56:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:56:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:56:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:56:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:56:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:56:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:56:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:56:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:56:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:56:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:56:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:56:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:56:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:56:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-03 02:56:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:56:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:56:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:56:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:56:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:56:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:56:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:56:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:56:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:56:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:56:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:56:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:56:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:56:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:56:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:56:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:56:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:56:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:56:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:56:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:56:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:56:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:56:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:56:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:56:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:56:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:56:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:56:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:56:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:56:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:56:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:56:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:56:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:56:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:56:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:56:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-03 02:56:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:56:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:56:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:56:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:56:50,515 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:56:50,515 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:56:50,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:50 BoogieIcfgContainer [2019-10-03 02:56:50,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:56:50,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:56:50,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:56:50,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:56:50,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:56:48" (1/3) ... [2019-10-03 02:56:50,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3664fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:50, skipping insertion in model container [2019-10-03 02:56:50,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:49" (2/3) ... [2019-10-03 02:56:50,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3664fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:50, skipping insertion in model container [2019-10-03 02:56:50,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:50" (3/3) ... [2019-10-03 02:56:50,531 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product21.cil.c [2019-10-03 02:56:50,541 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:56:50,552 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:56:50,571 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:56:50,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:56:50,603 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:56:50,603 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:56:50,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:56:50,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:56:50,604 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:56:50,604 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:56:50,604 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:56:50,633 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-10-03 02:56:50,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:56:50,649 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:50,650 INFO L411 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] [2019-10-03 02:56:50,656 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:50,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:50,663 INFO L82 PathProgramCache]: Analyzing trace with hash 118320894, now seen corresponding path program 1 times [2019-10-03 02:56:50,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:50,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:50,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:50,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:50,736 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:51,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:51,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:56:51,072 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:51,078 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:56:51,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:56:51,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:51,098 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2019-10-03 02:56:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:51,127 INFO L93 Difference]: Finished difference Result 130 states and 153 transitions. [2019-10-03 02:56:51,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:56:51,129 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:56:51,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:51,143 INFO L225 Difference]: With dead ends: 130 [2019-10-03 02:56:51,143 INFO L226 Difference]: Without dead ends: 119 [2019-10-03 02:56:51,145 INFO L640 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 [2019-10-03 02:56:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-03 02:56:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-03 02:56:51,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-03 02:56:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 141 transitions. [2019-10-03 02:56:51,213 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 141 transitions. Word has length 46 [2019-10-03 02:56:51,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:51,214 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 141 transitions. [2019-10-03 02:56:51,214 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:56:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 141 transitions. [2019-10-03 02:56:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:56:51,218 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:51,218 INFO L411 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] [2019-10-03 02:56:51,218 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:51,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:51,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1322865841, now seen corresponding path program 1 times [2019-10-03 02:56:51,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:51,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:51,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:51,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:51,222 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:51,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:51,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:51,373 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:51,376 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:51,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:51,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:51,377 INFO L87 Difference]: Start difference. First operand 119 states and 141 transitions. Second operand 3 states. [2019-10-03 02:56:51,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:51,409 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2019-10-03 02:56:51,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:51,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:56:51,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:51,413 INFO L225 Difference]: With dead ends: 110 [2019-10-03 02:56:51,413 INFO L226 Difference]: Without dead ends: 110 [2019-10-03 02:56:51,414 INFO L640 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 [2019-10-03 02:56:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-03 02:56:51,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-03 02:56:51,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-03 02:56:51,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2019-10-03 02:56:51,428 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 47 [2019-10-03 02:56:51,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:51,428 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2019-10-03 02:56:51,429 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:51,429 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2019-10-03 02:56:51,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:56:51,431 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:51,431 INFO L411 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] [2019-10-03 02:56:51,432 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:51,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:51,432 INFO L82 PathProgramCache]: Analyzing trace with hash -847724257, now seen corresponding path program 1 times [2019-10-03 02:56:51,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:51,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:51,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:51,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:51,435 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:51,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:51,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:51,572 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:51,573 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:51,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:51,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:51,574 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 3 states. [2019-10-03 02:56:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:51,586 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2019-10-03 02:56:51,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:51,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-10-03 02:56:51,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:51,589 INFO L225 Difference]: With dead ends: 110 [2019-10-03 02:56:51,589 INFO L226 Difference]: Without dead ends: 110 [2019-10-03 02:56:51,589 INFO L640 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 [2019-10-03 02:56:51,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-03 02:56:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-03 02:56:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-03 02:56:51,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2019-10-03 02:56:51,599 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 51 [2019-10-03 02:56:51,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:51,600 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2019-10-03 02:56:51,600 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:51,600 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2019-10-03 02:56:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:56:51,603 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:51,603 INFO L411 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] [2019-10-03 02:56:51,603 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:51,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:51,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1105305389, now seen corresponding path program 1 times [2019-10-03 02:56:51,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:51,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:51,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:51,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:51,607 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:51,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:51,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:56:51,789 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:51,790 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:56:51,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:56:51,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:56:51,791 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 6 states. [2019-10-03 02:56:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:52,071 INFO L93 Difference]: Finished difference Result 189 states and 224 transitions. [2019-10-03 02:56:52,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:52,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-10-03 02:56:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:52,076 INFO L225 Difference]: With dead ends: 189 [2019-10-03 02:56:52,076 INFO L226 Difference]: Without dead ends: 189 [2019-10-03 02:56:52,077 INFO L640 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 [2019-10-03 02:56:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-10-03 02:56:52,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2019-10-03 02:56:52,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-03 02:56:52,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 222 transitions. [2019-10-03 02:56:52,100 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 222 transitions. Word has length 64 [2019-10-03 02:56:52,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:52,103 INFO L475 AbstractCegarLoop]: Abstraction has 187 states and 222 transitions. [2019-10-03 02:56:52,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:56:52,103 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 222 transitions. [2019-10-03 02:56:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-03 02:56:52,109 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:52,112 INFO L411 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] [2019-10-03 02:56:52,112 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:52,113 INFO L82 PathProgramCache]: Analyzing trace with hash -100838641, now seen corresponding path program 1 times [2019-10-03 02:56:52,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:52,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:52,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:52,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:52,118 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:52,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:52,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:56:52,327 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:52,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:56:52,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:56:52,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:56:52,328 INFO L87 Difference]: Start difference. First operand 187 states and 222 transitions. Second operand 7 states. [2019-10-03 02:56:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:52,735 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2019-10-03 02:56:52,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:52,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-10-03 02:56:52,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:52,736 INFO L225 Difference]: With dead ends: 122 [2019-10-03 02:56:52,736 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:56:52,737 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:56:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:56:52,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:56:52,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:56:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:56:52,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-10-03 02:56:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:52,739 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:56:52,739 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:56:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:56:52,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:56:52,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:56:52 BoogieIcfgContainer [2019-10-03 02:56:52,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:56:52,750 INFO L168 Benchmark]: Toolchain (without parser) took 4318.12 ms. Allocated memory was 143.1 MB in the beginning and 252.2 MB in the end (delta: 109.1 MB). Free memory was 89.3 MB in the beginning and 159.5 MB in the end (delta: -70.1 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:52,752 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:56:52,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.81 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 89.3 MB in the beginning and 165.3 MB in the end (delta: -76.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:52,755 INFO L168 Benchmark]: Boogie Preprocessor took 147.66 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 161.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:52,756 INFO L168 Benchmark]: RCFGBuilder took 1150.05 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 161.2 MB in the beginning and 192.1 MB in the end (delta: -30.9 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:52,759 INFO L168 Benchmark]: TraceAbstraction took 2225.15 ms. Allocated memory was 232.8 MB in the beginning and 252.2 MB in the end (delta: 19.4 MB). Free memory was 192.1 MB in the beginning and 159.5 MB in the end (delta: 32.6 MB). Peak memory consumption was 52.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:52,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 784.81 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 89.3 MB in the beginning and 165.3 MB in the end (delta: -76.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.66 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 161.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1150.05 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 161.2 MB in the beginning and 192.1 MB in the end (delta: -30.9 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2225.15 ms. Allocated memory was 232.8 MB in the beginning and 252.2 MB in the end (delta: 19.4 MB). Free memory was 192.1 MB in the beginning and 159.5 MB in the end (delta: 32.6 MB). Peak memory consumption was 52.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 916]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 614 SDtfs, 276 SDslu, 698 SDs, 0 SdLazy, 230 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=4, 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 27879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...