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_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:46,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:46,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:46,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:46,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:46,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:46,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:46,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:46,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:46,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:46,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:46,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:46,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:46,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:46,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:46,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:46,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:46,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:46,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:46,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:46,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:46,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:46,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:46,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:46,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:46,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:46,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:46,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:46,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:46,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:46,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:46,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:46,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:46,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:46,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:46,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:46,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:46,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:46,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:46,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:46,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:46,403 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 [2019-09-20 13:29:46,425 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:46,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:46,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:46,427 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:46,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:46,428 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:46,428 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:46,428 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:46,429 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:46,429 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:46,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:46,430 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:46,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:46,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:46,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:46,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:46,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:46,432 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:46,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:46,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:46,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:46,433 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:46,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:46,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:46,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:46,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:46,434 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:46,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:46,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:46,435 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:46,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:46,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:46,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:46,512 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:46,513 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:46,514 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2019-09-20 13:29:46,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7155cbfc/e8d20f3338eb42a7a4c23e765c1817b4/FLAG4c4982d51 [2019-09-20 13:29:47,182 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:47,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2019-09-20 13:29:47,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7155cbfc/e8d20f3338eb42a7a4c23e765c1817b4/FLAG4c4982d51 [2019-09-20 13:29:47,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7155cbfc/e8d20f3338eb42a7a4c23e765c1817b4 [2019-09-20 13:29:47,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:47,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:47,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:47,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:47,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:47,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:47" (1/1) ... [2019-09-20 13:29:47,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ec9619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47, skipping insertion in model container [2019-09-20 13:29:47,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:47" (1/1) ... [2019-09-20 13:29:47,486 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:47,546 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:48,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:48,027 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:48,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:48,160 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:48,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48 WrapperNode [2019-09-20 13:29:48,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:48,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:48,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:48,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:48,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (1/1) ... [2019-09-20 13:29:48,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (1/1) ... [2019-09-20 13:29:48,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (1/1) ... [2019-09-20 13:29:48,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (1/1) ... [2019-09-20 13:29:48,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (1/1) ... [2019-09-20 13:29:48,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (1/1) ... [2019-09-20 13:29:48,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (1/1) ... [2019-09-20 13:29:48,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:48,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:48,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:48,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:48,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (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 [2019-09-20 13:29:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:29:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:29:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:29:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:48,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:48,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:48,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:29:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:29:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:29:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:48,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:48,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:49,646 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:49,646 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:49,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:49 BoogieIcfgContainer [2019-09-20 13:29:49,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:49,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:49,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:49,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:49,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:47" (1/3) ... [2019-09-20 13:29:49,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdb0424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:49, skipping insertion in model container [2019-09-20 13:29:49,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:48" (2/3) ... [2019-09-20 13:29:49,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdb0424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:49, skipping insertion in model container [2019-09-20 13:29:49,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:49" (3/3) ... [2019-09-20 13:29:49,658 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2019-09-20 13:29:49,666 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:49,675 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:49,692 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:49,720 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:49,720 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:49,720 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:49,720 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:49,721 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:49,721 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:49,721 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:49,721 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states. [2019-09-20 13:29:49,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:49,762 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:49,763 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] [2019-09-20 13:29:49,767 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:49,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:49,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1301923028, now seen corresponding path program 1 times [2019-09-20 13:29:49,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:49,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:49,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,837 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:50,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:50,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:50,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:50,190 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:50,196 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:50,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:50,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:50,213 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 2 states. [2019-09-20 13:29:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:50,262 INFO L93 Difference]: Finished difference Result 161 states and 191 transitions. [2019-09-20 13:29:50,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:50,264 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:50,283 INFO L225 Difference]: With dead ends: 161 [2019-09-20 13:29:50,283 INFO L226 Difference]: Without dead ends: 150 [2019-09-20 13:29:50,285 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 [2019-09-20 13:29:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-09-20 13:29:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-09-20 13:29:50,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-09-20 13:29:50,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 179 transitions. [2019-09-20 13:29:50,340 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 179 transitions. Word has length 46 [2019-09-20 13:29:50,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:50,341 INFO L475 AbstractCegarLoop]: Abstraction has 150 states and 179 transitions. [2019-09-20 13:29:50,343 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2019-09-20 13:29:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:50,348 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:50,348 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] [2019-09-20 13:29:50,349 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:50,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:50,351 INFO L82 PathProgramCache]: Analyzing trace with hash -216566915, now seen corresponding path program 1 times [2019-09-20 13:29:50,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:50,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:50,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,355 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:50,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:50,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:50,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:50,544 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:50,547 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:50,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:50,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:50,548 INFO L87 Difference]: Start difference. First operand 150 states and 179 transitions. Second operand 3 states. [2019-09-20 13:29:50,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:50,571 INFO L93 Difference]: Finished difference Result 141 states and 167 transitions. [2019-09-20 13:29:50,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:50,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:50,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:50,575 INFO L225 Difference]: With dead ends: 141 [2019-09-20 13:29:50,575 INFO L226 Difference]: Without dead ends: 141 [2019-09-20 13:29:50,576 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 [2019-09-20 13:29:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-09-20 13:29:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2019-09-20 13:29:50,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-09-20 13:29:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2019-09-20 13:29:50,592 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 47 [2019-09-20 13:29:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:50,593 INFO L475 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2019-09-20 13:29:50,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:50,593 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2019-09-20 13:29:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:50,595 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:50,596 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] [2019-09-20 13:29:50,596 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:50,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:50,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1163721234, now seen corresponding path program 1 times [2019-09-20 13:29:50,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:50,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:50,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,600 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:50,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:50,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:50,757 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:50,757 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:50,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:50,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:50,758 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand 7 states. [2019-09-20 13:29:51,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:51,167 INFO L93 Difference]: Finished difference Result 141 states and 166 transitions. [2019-09-20 13:29:51,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:51,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:29:51,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:51,170 INFO L225 Difference]: With dead ends: 141 [2019-09-20 13:29:51,170 INFO L226 Difference]: Without dead ends: 141 [2019-09-20 13:29:51,171 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:29:51,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-09-20 13:29:51,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2019-09-20 13:29:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-09-20 13:29:51,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2019-09-20 13:29:51,184 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 51 [2019-09-20 13:29:51,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:51,185 INFO L475 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2019-09-20 13:29:51,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2019-09-20 13:29:51,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:29:51,188 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:51,189 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, 1, 1, 1, 1, 1] [2019-09-20 13:29:51,189 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:51,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:51,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1315506319, now seen corresponding path program 1 times [2019-09-20 13:29:51,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:51,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:51,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:51,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:51,193 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:51,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:51,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:29:51,342 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:51,343 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:29:51,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:29:51,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:29:51,344 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand 5 states. [2019-09-20 13:29:51,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:51,936 INFO L93 Difference]: Finished difference Result 250 states and 288 transitions. [2019-09-20 13:29:51,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:51,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-20 13:29:51,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:51,944 INFO L225 Difference]: With dead ends: 250 [2019-09-20 13:29:51,945 INFO L226 Difference]: Without dead ends: 250 [2019-09-20 13:29:51,945 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-09-20 13:29:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 232. [2019-09-20 13:29:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-09-20 13:29:51,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 264 transitions. [2019-09-20 13:29:51,988 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 264 transitions. Word has length 69 [2019-09-20 13:29:51,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:51,988 INFO L475 AbstractCegarLoop]: Abstraction has 232 states and 264 transitions. [2019-09-20 13:29:51,988 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:29:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 264 transitions. [2019-09-20 13:29:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:29:51,991 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:51,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:51,991 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:51,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:51,992 INFO L82 PathProgramCache]: Analyzing trace with hash -921409892, now seen corresponding path program 1 times [2019-09-20 13:29:51,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:51,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:51,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:51,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:51,995 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:52,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:52,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:52,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:52,108 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:52,110 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:52,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:52,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:52,111 INFO L87 Difference]: Start difference. First operand 232 states and 264 transitions. Second operand 6 states. [2019-09-20 13:29:52,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:52,310 INFO L93 Difference]: Finished difference Result 425 states and 485 transitions. [2019-09-20 13:29:52,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:52,310 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-09-20 13:29:52,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:52,316 INFO L225 Difference]: With dead ends: 425 [2019-09-20 13:29:52,316 INFO L226 Difference]: Without dead ends: 425 [2019-09-20 13:29:52,318 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2019-09-20 13:29:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 419. [2019-09-20 13:29:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-09-20 13:29:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 478 transitions. [2019-09-20 13:29:52,361 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 478 transitions. Word has length 83 [2019-09-20 13:29:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:52,362 INFO L475 AbstractCegarLoop]: Abstraction has 419 states and 478 transitions. [2019-09-20 13:29:52,362 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 478 transitions. [2019-09-20 13:29:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-20 13:29:52,364 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:52,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:52,364 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:52,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:52,365 INFO L82 PathProgramCache]: Analyzing trace with hash 592685792, now seen corresponding path program 1 times [2019-09-20 13:29:52,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:52,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:52,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:52,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:52,369 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:52,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:52,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:52,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:52,501 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:52,502 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:52,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:52,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:52,503 INFO L87 Difference]: Start difference. First operand 419 states and 478 transitions. Second operand 7 states. [2019-09-20 13:29:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:53,164 INFO L93 Difference]: Finished difference Result 449 states and 525 transitions. [2019-09-20 13:29:53,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:29:53,165 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-20 13:29:53,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:53,168 INFO L225 Difference]: With dead ends: 449 [2019-09-20 13:29:53,169 INFO L226 Difference]: Without dead ends: 449 [2019-09-20 13:29:53,169 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:29:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-09-20 13:29:53,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 419. [2019-09-20 13:29:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-09-20 13:29:53,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 477 transitions. [2019-09-20 13:29:53,191 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 477 transitions. Word has length 87 [2019-09-20 13:29:53,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:53,192 INFO L475 AbstractCegarLoop]: Abstraction has 419 states and 477 transitions. [2019-09-20 13:29:53,192 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:53,192 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 477 transitions. [2019-09-20 13:29:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:29:53,194 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:53,194 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:53,195 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:53,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:53,195 INFO L82 PathProgramCache]: Analyzing trace with hash -88143431, now seen corresponding path program 1 times [2019-09-20 13:29:53,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:53,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:53,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,200 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:53,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:53,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:53,303 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:53,304 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:53,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:53,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:53,306 INFO L87 Difference]: Start difference. First operand 419 states and 477 transitions. Second operand 6 states. [2019-09-20 13:29:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:53,336 INFO L93 Difference]: Finished difference Result 433 states and 491 transitions. [2019-09-20 13:29:53,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:53,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2019-09-20 13:29:53,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:53,342 INFO L225 Difference]: With dead ends: 433 [2019-09-20 13:29:53,342 INFO L226 Difference]: Without dead ends: 433 [2019-09-20 13:29:53,343 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:53,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-09-20 13:29:53,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 429. [2019-09-20 13:29:53,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-09-20 13:29:53,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 487 transitions. [2019-09-20 13:29:53,375 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 487 transitions. Word has length 103 [2019-09-20 13:29:53,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:53,376 INFO L475 AbstractCegarLoop]: Abstraction has 429 states and 487 transitions. [2019-09-20 13:29:53,376 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:53,377 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 487 transitions. [2019-09-20 13:29:53,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:29:53,386 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:53,387 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:53,387 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:53,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:53,388 INFO L82 PathProgramCache]: Analyzing trace with hash -441231813, now seen corresponding path program 1 times [2019-09-20 13:29:53,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:53,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:53,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,412 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:53,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:53,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:53,526 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:53,527 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:53,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:53,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:53,533 INFO L87 Difference]: Start difference. First operand 429 states and 487 transitions. Second operand 8 states. [2019-09-20 13:29:53,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:53,566 INFO L93 Difference]: Finished difference Result 443 states and 501 transitions. [2019-09-20 13:29:53,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:53,567 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-09-20 13:29:53,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:53,571 INFO L225 Difference]: With dead ends: 443 [2019-09-20 13:29:53,572 INFO L226 Difference]: Without dead ends: 443 [2019-09-20 13:29:53,572 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:53,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-09-20 13:29:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 437. [2019-09-20 13:29:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-09-20 13:29:53,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 495 transitions. [2019-09-20 13:29:53,591 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 495 transitions. Word has length 103 [2019-09-20 13:29:53,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:53,591 INFO L475 AbstractCegarLoop]: Abstraction has 437 states and 495 transitions. [2019-09-20 13:29:53,591 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:53,592 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 495 transitions. [2019-09-20 13:29:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:29:53,594 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:53,594 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:53,595 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:53,595 INFO L82 PathProgramCache]: Analyzing trace with hash 691958780, now seen corresponding path program 1 times [2019-09-20 13:29:53,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:53,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:53,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,599 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:53,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:53,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:29:53,711 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:53,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:29:53,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:29:53,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:53,712 INFO L87 Difference]: Start difference. First operand 437 states and 495 transitions. Second operand 4 states. [2019-09-20 13:29:53,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:53,921 INFO L93 Difference]: Finished difference Result 884 states and 1047 transitions. [2019-09-20 13:29:53,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:29:53,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2019-09-20 13:29:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:53,926 INFO L225 Difference]: With dead ends: 884 [2019-09-20 13:29:53,927 INFO L226 Difference]: Without dead ends: 884 [2019-09-20 13:29:53,927 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:53,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2019-09-20 13:29:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 869. [2019-09-20 13:29:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2019-09-20 13:29:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1015 transitions. [2019-09-20 13:29:53,959 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1015 transitions. Word has length 103 [2019-09-20 13:29:53,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:53,960 INFO L475 AbstractCegarLoop]: Abstraction has 869 states and 1015 transitions. [2019-09-20 13:29:53,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:29:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1015 transitions. [2019-09-20 13:29:53,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-20 13:29:53,962 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:53,963 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:53,963 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:53,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:53,963 INFO L82 PathProgramCache]: Analyzing trace with hash -867723262, now seen corresponding path program 1 times [2019-09-20 13:29:53,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:53,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:53,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,966 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:29:54,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:54,352 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:54,353 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-20 13:29:54,355 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [172], [187], [188], [200], [202], [207], [210], [213], [215], [220], [222], [223], [224], [225], [231], [235], [275], [278], [280], [283], [293], [296], [300], [301], [304], [305], [320], [323], [324], [325], [348], [350], [351], [418], [419], [424], [426], [429], [433], [435], [438], [440], [443], [456], [457], [458], [459], [460], [461], [462], [463], [464], [504], [505], [506], [507], [508], [509], [510], [514], [515], [516], [517], [518], [519], [522], [523], [524], [530], [531], [532], [533], [544], [545], [548], [550], [551], [556], [557], [558], [560], [561], [562], [563], [564] [2019-09-20 13:29:54,406 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:54,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:54,511 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:54,513 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. [2019-09-20 13:29:54,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:54,518 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:54,595 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:29:54,595 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:54,605 INFO L420 sIntCurrentIteration]: We unified 106 AI predicates to 106 [2019-09-20 13:29:54,605 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:54,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:54,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:29:54,607 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:54,607 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:54,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:54,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:54,608 INFO L87 Difference]: Start difference. First operand 869 states and 1015 transitions. Second operand 2 states. [2019-09-20 13:29:54,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:54,609 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:29:54,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:54,609 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 107 [2019-09-20 13:29:54,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:54,610 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:29:54,610 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:54,611 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:54,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2019-09-20 13:29:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:54,613 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:54,613 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:54,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:54,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:54 BoogieIcfgContainer [2019-09-20 13:29:54,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:54,623 INFO L168 Benchmark]: Toolchain (without parser) took 7152.97 ms. Allocated memory was 133.2 MB in the beginning and 321.4 MB in the end (delta: 188.2 MB). Free memory was 87.3 MB in the beginning and 120.9 MB in the end (delta: -33.5 MB). Peak memory consumption was 154.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:54,624 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:54,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.71 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 87.1 MB in the beginning and 163.4 MB in the end (delta: -76.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:54,627 INFO L168 Benchmark]: Boogie Preprocessor took 94.87 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 159.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:54,634 INFO L168 Benchmark]: RCFGBuilder took 1390.33 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 159.0 MB in the beginning and 188.4 MB in the end (delta: -29.4 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:54,635 INFO L168 Benchmark]: TraceAbstraction took 4969.38 ms. Allocated memory was 224.9 MB in the beginning and 321.4 MB in the end (delta: 96.5 MB). Free memory was 188.4 MB in the beginning and 120.9 MB in the end (delta: 67.5 MB). Peak memory consumption was 164.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:54,647 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 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.71 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 87.1 MB in the beginning and 163.4 MB in the end (delta: -76.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.87 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 159.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1390.33 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 159.0 MB in the beginning and 188.4 MB in the end (delta: -29.4 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4969.38 ms. Allocated memory was 224.9 MB in the beginning and 321.4 MB in the end (delta: 96.5 MB). Free memory was 188.4 MB in the beginning and 120.9 MB in the end (delta: 67.5 MB). Peak memory consumption was 164.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: 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 42 procedures, 252 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1627 SDtfs, 985 SDslu, 3424 SDs, 0 SdLazy, 1162 SolverSat, 321 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred in iteration=9, 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, 1.028301886792453 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 799 NumberOfCodeBlocks, 799 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 789 ConstructedInterpolants, 0 QuantifiedInterpolants, 111243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...