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_spec4_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:05,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:05,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:05,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:05,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:05,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:05,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:05,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:05,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:05,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:05,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:05,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:05,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:05,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:05,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:05,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:05,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:05,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:05,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:05,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:05,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:05,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:05,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:05,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:05,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:05,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:05,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:05,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:05,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:05,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:05,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:05,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:05,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:05,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:05,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:05,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:05,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:05,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:05,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:05,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:05,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:05,473 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 [2019-09-16 17:09:05,488 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:05,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:05,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:05,489 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:05,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:05,490 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:05,490 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:05,491 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:05,491 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:05,491 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:05,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:05,492 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:05,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:05,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:05,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:05,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:05,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:05,493 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:05,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:05,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:05,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:05,494 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:05,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:05,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:05,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:05,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:05,495 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:05,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:05,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:05,496 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:05,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:05,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:05,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:05,562 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:05,562 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:05,563 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product26.cil.c [2019-09-16 17:09:05,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeec6ebd5/f3c9bddd289949dda733747f85004be2/FLAGb97d2409c [2019-09-16 17:09:06,162 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:06,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product26.cil.c [2019-09-16 17:09:06,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeec6ebd5/f3c9bddd289949dda733747f85004be2/FLAGb97d2409c [2019-09-16 17:09:06,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeec6ebd5/f3c9bddd289949dda733747f85004be2 [2019-09-16 17:09:06,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:06,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:06,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:06,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:06,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:06,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:06" (1/1) ... [2019-09-16 17:09:06,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc28577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:06, skipping insertion in model container [2019-09-16 17:09:06,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:06" (1/1) ... [2019-09-16 17:09:06,554 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:06,595 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:07,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:07,027 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:07,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:07,180 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:07,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07 WrapperNode [2019-09-16 17:09:07,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:07,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:07,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:07,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:07,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:07,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:07,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:07,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:07,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (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 [2019-09-16 17:09:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:09:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:09:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:08,509 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:08,509 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:08,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:08 BoogieIcfgContainer [2019-09-16 17:09:08,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:08,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:08,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:08,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:08,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:06" (1/3) ... [2019-09-16 17:09:08,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79aac72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:08, skipping insertion in model container [2019-09-16 17:09:08,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (2/3) ... [2019-09-16 17:09:08,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79aac72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:08, skipping insertion in model container [2019-09-16 17:09:08,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:08" (3/3) ... [2019-09-16 17:09:08,519 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2019-09-16 17:09:08,529 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:08,540 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:08,559 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:08,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:08,593 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:08,593 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:08,593 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:08,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:08,594 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:08,594 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:08,594 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-09-16 17:09:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:09:08,630 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:08,632 INFO L407 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] [2019-09-16 17:09:08,635 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:08,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1031127634, now seen corresponding path program 1 times [2019-09-16 17:09:08,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:08,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:08,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:08,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:08,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:08,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:08,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:08,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:08,996 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:09,002 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:09,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:09,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:09,024 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-09-16 17:09:09,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:09,073 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2019-09-16 17:09:09,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:09,078 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:09:09,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:09,093 INFO L225 Difference]: With dead ends: 119 [2019-09-16 17:09:09,094 INFO L226 Difference]: Without dead ends: 108 [2019-09-16 17:09:09,101 INFO L636 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 [2019-09-16 17:09:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-09-16 17:09:09,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-09-16 17:09:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-09-16 17:09:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2019-09-16 17:09:09,155 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 46 [2019-09-16 17:09:09,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:09,155 INFO L475 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2019-09-16 17:09:09,155 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2019-09-16 17:09:09,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:09:09,159 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:09,159 INFO L407 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] [2019-09-16 17:09:09,160 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:09,160 INFO L82 PathProgramCache]: Analyzing trace with hash -303025831, now seen corresponding path program 1 times [2019-09-16 17:09:09,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:09,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:09,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,164 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:09,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:09,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:09,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:09,330 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:09,332 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:09,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:09,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:09,333 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 3 states. [2019-09-16 17:09:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:09,354 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2019-09-16 17:09:09,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:09,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:09,360 INFO L225 Difference]: With dead ends: 99 [2019-09-16 17:09:09,360 INFO L226 Difference]: Without dead ends: 99 [2019-09-16 17:09:09,361 INFO L636 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 [2019-09-16 17:09:09,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-16 17:09:09,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-16 17:09:09,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-16 17:09:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2019-09-16 17:09:09,373 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 47 [2019-09-16 17:09:09,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:09,374 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2019-09-16 17:09:09,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2019-09-16 17:09:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:09:09,376 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:09,376 INFO L407 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] [2019-09-16 17:09:09,377 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:09,377 INFO L82 PathProgramCache]: Analyzing trace with hash -111885155, now seen corresponding path program 1 times [2019-09-16 17:09:09,377 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:09,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:09,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,380 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:09,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:09,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:09,556 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:09,556 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:09,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:09,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:09,557 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 7 states. [2019-09-16 17:09:09,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:09,888 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2019-09-16 17:09:09,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:09:09,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:09:09,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:09,890 INFO L225 Difference]: With dead ends: 99 [2019-09-16 17:09:09,890 INFO L226 Difference]: Without dead ends: 99 [2019-09-16 17:09:09,890 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-16 17:09:09,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-16 17:09:09,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-16 17:09:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2019-09-16 17:09:09,900 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 52 [2019-09-16 17:09:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:09,900 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2019-09-16 17:09:09,901 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2019-09-16 17:09:09,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:09:09,905 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:09,905 INFO L407 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] [2019-09-16 17:09:09,906 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:09,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:09,906 INFO L82 PathProgramCache]: Analyzing trace with hash 558328282, now seen corresponding path program 1 times [2019-09-16 17:09:09,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:09,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:09,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,911 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:10,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:10,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:10,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:09:10,135 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:10,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:09:10,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:09:10,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:10,137 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 10 states. [2019-09-16 17:09:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:10,789 INFO L93 Difference]: Finished difference Result 229 states and 271 transitions. [2019-09-16 17:09:10,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:09:10,789 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2019-09-16 17:09:10,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:10,798 INFO L225 Difference]: With dead ends: 229 [2019-09-16 17:09:10,798 INFO L226 Difference]: Without dead ends: 229 [2019-09-16 17:09:10,799 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:09:10,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-16 17:09:10,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 225. [2019-09-16 17:09:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-09-16 17:09:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 264 transitions. [2019-09-16 17:09:10,836 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 264 transitions. Word has length 60 [2019-09-16 17:09:10,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:10,837 INFO L475 AbstractCegarLoop]: Abstraction has 225 states and 264 transitions. [2019-09-16 17:09:10,837 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:09:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 264 transitions. [2019-09-16 17:09:10,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-16 17:09:10,840 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:10,840 INFO L407 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] [2019-09-16 17:09:10,840 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:10,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:10,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1767139328, now seen corresponding path program 1 times [2019-09-16 17:09:10,841 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:10,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:10,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,844 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:10,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:10,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:10,909 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:10,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:10,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:10,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:10,910 INFO L87 Difference]: Start difference. First operand 225 states and 264 transitions. Second operand 3 states. [2019-09-16 17:09:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:10,921 INFO L93 Difference]: Finished difference Result 161 states and 179 transitions. [2019-09-16 17:09:10,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:10,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-16 17:09:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:10,923 INFO L225 Difference]: With dead ends: 161 [2019-09-16 17:09:10,924 INFO L226 Difference]: Without dead ends: 161 [2019-09-16 17:09:10,924 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-09-16 17:09:10,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2019-09-16 17:09:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-09-16 17:09:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 179 transitions. [2019-09-16 17:09:10,936 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 179 transitions. Word has length 64 [2019-09-16 17:09:10,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:10,937 INFO L475 AbstractCegarLoop]: Abstraction has 161 states and 179 transitions. [2019-09-16 17:09:10,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 179 transitions. [2019-09-16 17:09:10,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-16 17:09:10,940 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:10,940 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:10,940 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:10,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:10,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1970958153, now seen corresponding path program 1 times [2019-09-16 17:09:10,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:10,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:10,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,944 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:11,086 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-16 17:09:11,088 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:09:11,089 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:09:11,090 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 101 with the following transitions: [2019-09-16 17:09:11,093 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [144], [147], [148], [149], [158], [162], [166], [169], [174], [180], [182], [188], [193], [225], [226], [232], [236], [242], [282], [286], [287], [290], [291], [292], [385], [386], [396], [404], [405], [406], [407], [408], [410], [411], [412], [413], [414], [415], [416], [417], [418], [458], [459], [460], [461], [466], [467], [476], [477], [478], [479], [486], [494], [495], [496] [2019-09-16 17:09:11,136 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:09:11,136 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:09:11,205 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:09:11,207 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:09:11,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:11,212 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:09:11,258 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:09:11,258 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:09:11,262 INFO L420 sIntCurrentIteration]: We unified 99 AI predicates to 99 [2019-09-16 17:09:11,262 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:09:11,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:09:11,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-16 17:09:11,263 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:11,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:11,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:11,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:11,265 INFO L87 Difference]: Start difference. First operand 161 states and 179 transitions. Second operand 2 states. [2019-09-16 17:09:11,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:11,265 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:09:11,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:11,266 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 100 [2019-09-16 17:09:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:11,266 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:09:11,266 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:11,267 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:11,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:11,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2019-09-16 17:09:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:11,268 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:11,268 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:11,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:11,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:11 BoogieIcfgContainer [2019-09-16 17:09:11,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:11,276 INFO L168 Benchmark]: Toolchain (without parser) took 4739.44 ms. Allocated memory was 141.6 MB in the beginning and 258.5 MB in the end (delta: 116.9 MB). Free memory was 87.4 MB in the beginning and 106.5 MB in the end (delta: -19.0 MB). Peak memory consumption was 97.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,277 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.19 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 87.2 MB in the beginning and 167.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,279 INFO L168 Benchmark]: Boogie Preprocessor took 87.29 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 163.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,280 INFO L168 Benchmark]: RCFGBuilder took 1241.10 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 163.2 MB in the beginning and 197.9 MB in the end (delta: -34.6 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,282 INFO L168 Benchmark]: TraceAbstraction took 2762.30 ms. Allocated memory was 228.6 MB in the beginning and 258.5 MB in the end (delta: 29.9 MB). Free memory was 197.9 MB in the beginning and 106.5 MB in the end (delta: 91.4 MB). Peak memory consumption was 121.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,286 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.19 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 87.2 MB in the beginning and 167.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.29 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 163.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1241.10 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 163.2 MB in the beginning and 197.9 MB in the end (delta: -34.6 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2762.30 ms. Allocated memory was 228.6 MB in the beginning and 258.5 MB in the end (delta: 29.9 MB). Free memory was 197.9 MB in the beginning and 106.5 MB in the end (delta: 91.4 MB). Peak memory consumption was 121.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 39 procedures, 225 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 569 SDtfs, 358 SDslu, 1081 SDs, 0 SdLazy, 373 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.9696969696969697 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 48871 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 28/32 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...