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_spec3_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:40,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:40,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:40,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:40,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:40,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:40,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:40,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:40,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:40,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:40,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:40,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:40,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:40,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:40,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:40,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:40,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:40,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:40,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:40,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:40,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:40,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:40,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:40,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:40,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:40,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:40,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:40,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:40,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:40,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:40,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:40,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:40,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:40,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:40,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:40,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:40,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:40,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:40,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:40,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:40,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:40,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:49:40,447 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:40,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:40,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:40,448 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:40,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:40,448 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:40,449 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:40,449 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:40,449 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:40,449 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:40,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:40,450 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:40,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:40,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:40,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:40,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:40,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:40,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:40,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:40,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:40,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:40,452 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:40,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:40,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:40,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:40,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:40,453 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:40,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:40,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:40,454 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:40,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:40,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:40,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:40,499 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:40,500 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:40,500 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product50.cil.c [2019-09-10 02:49:40,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc137e3a/75a2895a69cb43758bc1140a390131dc/FLAGf84c0de04 [2019-09-10 02:49:41,126 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:41,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product50.cil.c [2019-09-10 02:49:41,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc137e3a/75a2895a69cb43758bc1140a390131dc/FLAGf84c0de04 [2019-09-10 02:49:41,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc137e3a/75a2895a69cb43758bc1140a390131dc [2019-09-10 02:49:41,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:41,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:41,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:41,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:41,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:41,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:41" (1/1) ... [2019-09-10 02:49:41,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1b76c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:41, skipping insertion in model container [2019-09-10 02:49:41,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:41" (1/1) ... [2019-09-10 02:49:41,434 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:41,490 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:41,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:41,953 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:42,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:42,082 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:42,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42 WrapperNode [2019-09-10 02:49:42,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:42,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:42,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:42,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:42,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... [2019-09-10 02:49:42,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... [2019-09-10 02:49:42,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... [2019-09-10 02:49:42,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... [2019-09-10 02:49:42,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... [2019-09-10 02:49:42,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... [2019-09-10 02:49:42,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... [2019-09-10 02:49:42,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:42,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:42,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:42,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:42,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:49:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:49:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:49:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:49:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:49:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:49:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:49:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:49:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:49:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:49:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:43,348 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:43,349 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:43,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:43 BoogieIcfgContainer [2019-09-10 02:49:43,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:43,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:43,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:43,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:43,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:41" (1/3) ... [2019-09-10 02:49:43,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c7ce16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:43, skipping insertion in model container [2019-09-10 02:49:43,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:42" (2/3) ... [2019-09-10 02:49:43,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c7ce16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:43, skipping insertion in model container [2019-09-10 02:49:43,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:43" (3/3) ... [2019-09-10 02:49:43,363 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2019-09-10 02:49:43,375 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:43,386 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:43,404 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:43,443 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:43,444 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:43,444 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:43,444 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:43,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:43,445 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:43,446 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:43,446 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:43,478 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states. [2019-09-10 02:49:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:49:43,493 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:43,494 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:43,497 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:43,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:43,503 INFO L82 PathProgramCache]: Analyzing trace with hash 291336746, now seen corresponding path program 1 times [2019-09-10 02:49:43,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:43,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:43,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:43,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:43,556 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:43,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:43,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:43,876 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:43,882 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:43,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:43,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:43,905 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 2 states. [2019-09-10 02:49:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:43,933 INFO L93 Difference]: Finished difference Result 149 states and 173 transitions. [2019-09-10 02:49:43,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:43,935 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-09-10 02:49:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:43,948 INFO L225 Difference]: With dead ends: 149 [2019-09-10 02:49:43,948 INFO L226 Difference]: Without dead ends: 138 [2019-09-10 02:49:43,950 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:43,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-10 02:49:43,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-10 02:49:43,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-10 02:49:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2019-09-10 02:49:44,003 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 52 [2019-09-10 02:49:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:44,004 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2019-09-10 02:49:44,004 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:44,004 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2019-09-10 02:49:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 02:49:44,008 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:44,008 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:44,009 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:44,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:44,009 INFO L82 PathProgramCache]: Analyzing trace with hash -951540010, now seen corresponding path program 1 times [2019-09-10 02:49:44,009 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:44,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:44,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:44,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:44,011 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:44,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:44,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:44,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:44,111 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:44,114 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:44,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:44,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:44,116 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 3 states. [2019-09-10 02:49:44,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:44,148 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2019-09-10 02:49:44,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:44,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-10 02:49:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:44,153 INFO L225 Difference]: With dead ends: 129 [2019-09-10 02:49:44,153 INFO L226 Difference]: Without dead ends: 129 [2019-09-10 02:49:44,154 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:44,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-10 02:49:44,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-10 02:49:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-10 02:49:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-09-10 02:49:44,174 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 53 [2019-09-10 02:49:44,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:44,175 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-09-10 02:49:44,175 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:44,175 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-09-10 02:49:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 02:49:44,185 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:44,185 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:44,186 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:44,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1718267444, now seen corresponding path program 1 times [2019-09-10 02:49:44,186 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:44,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:44,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:44,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:44,188 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:44,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:44,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:44,406 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:44,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:44,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:44,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:44,409 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 7 states. [2019-09-10 02:49:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:44,702 INFO L93 Difference]: Finished difference Result 129 states and 148 transitions. [2019-09-10 02:49:44,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:44,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-09-10 02:49:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:44,711 INFO L225 Difference]: With dead ends: 129 [2019-09-10 02:49:44,711 INFO L226 Difference]: Without dead ends: 129 [2019-09-10 02:49:44,712 INFO L628 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 [2019-09-10 02:49:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-10 02:49:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-10 02:49:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-10 02:49:44,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2019-09-10 02:49:44,737 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 58 [2019-09-10 02:49:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:44,737 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2019-09-10 02:49:44,738 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:44,738 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2019-09-10 02:49:44,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 02:49:44,743 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:44,745 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:44,746 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:44,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:44,746 INFO L82 PathProgramCache]: Analyzing trace with hash -625773272, now seen corresponding path program 1 times [2019-09-10 02:49:44,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:44,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:44,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:44,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:44,749 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:44,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:44,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:49:44,941 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:44,942 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:49:44,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:49:44,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:49:44,942 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand 5 states. [2019-09-10 02:49:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:45,468 INFO L93 Difference]: Finished difference Result 240 states and 277 transitions. [2019-09-10 02:49:45,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:45,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-09-10 02:49:45,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:45,474 INFO L225 Difference]: With dead ends: 240 [2019-09-10 02:49:45,474 INFO L226 Difference]: Without dead ends: 240 [2019-09-10 02:49:45,477 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:45,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-09-10 02:49:45,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 221. [2019-09-10 02:49:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-09-10 02:49:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 251 transitions. [2019-09-10 02:49:45,523 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 251 transitions. Word has length 71 [2019-09-10 02:49:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:45,525 INFO L475 AbstractCegarLoop]: Abstraction has 221 states and 251 transitions. [2019-09-10 02:49:45,525 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:49:45,528 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 251 transitions. [2019-09-10 02:49:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-10 02:49:45,533 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:45,534 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:45,534 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:45,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:45,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1888633043, now seen corresponding path program 1 times [2019-09-10 02:49:45,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:45,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:45,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:45,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:45,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:45,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:45,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:45,665 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:45,667 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:45,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:45,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:45,668 INFO L87 Difference]: Start difference. First operand 221 states and 251 transitions. Second operand 6 states. [2019-09-10 02:49:45,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:45,869 INFO L93 Difference]: Finished difference Result 341 states and 393 transitions. [2019-09-10 02:49:45,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:45,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2019-09-10 02:49:45,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:45,877 INFO L225 Difference]: With dead ends: 341 [2019-09-10 02:49:45,878 INFO L226 Difference]: Without dead ends: 341 [2019-09-10 02:49:45,878 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-09-10 02:49:45,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2019-09-10 02:49:45,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2019-09-10 02:49:45,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 389 transitions. [2019-09-10 02:49:45,908 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 389 transitions. Word has length 85 [2019-09-10 02:49:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:45,908 INFO L475 AbstractCegarLoop]: Abstraction has 337 states and 389 transitions. [2019-09-10 02:49:45,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:45,909 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 389 transitions. [2019-09-10 02:49:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:45,912 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:45,913 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:45,914 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:45,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:45,915 INFO L82 PathProgramCache]: Analyzing trace with hash 408582233, now seen corresponding path program 1 times [2019-09-10 02:49:45,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:45,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:45,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:45,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:45,916 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:46,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:46,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:46,076 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:46,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:46,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:46,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:46,077 INFO L87 Difference]: Start difference. First operand 337 states and 389 transitions. Second operand 6 states. [2019-09-10 02:49:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:46,308 INFO L93 Difference]: Finished difference Result 529 states and 626 transitions. [2019-09-10 02:49:46,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:46,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-10 02:49:46,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:46,316 INFO L225 Difference]: With dead ends: 529 [2019-09-10 02:49:46,316 INFO L226 Difference]: Without dead ends: 529 [2019-09-10 02:49:46,316 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:46,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-09-10 02:49:46,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 511. [2019-09-10 02:49:46,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2019-09-10 02:49:46,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 603 transitions. [2019-09-10 02:49:46,344 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 603 transitions. Word has length 89 [2019-09-10 02:49:46,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:46,344 INFO L475 AbstractCegarLoop]: Abstraction has 511 states and 603 transitions. [2019-09-10 02:49:46,345 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 603 transitions. [2019-09-10 02:49:46,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:46,347 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:46,347 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:46,347 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:46,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:46,348 INFO L82 PathProgramCache]: Analyzing trace with hash -514101350, now seen corresponding path program 1 times [2019-09-10 02:49:46,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:46,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:46,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:46,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:46,349 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:46,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:46,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:49:46,408 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:46,409 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:49:46,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:49:46,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:49:46,410 INFO L87 Difference]: Start difference. First operand 511 states and 603 transitions. Second operand 5 states. [2019-09-10 02:49:46,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:46,432 INFO L93 Difference]: Finished difference Result 521 states and 613 transitions. [2019-09-10 02:49:46,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:49:46,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2019-09-10 02:49:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:46,436 INFO L225 Difference]: With dead ends: 521 [2019-09-10 02:49:46,436 INFO L226 Difference]: Without dead ends: 521 [2019-09-10 02:49:46,437 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:49:46,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2019-09-10 02:49:46,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 515. [2019-09-10 02:49:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-09-10 02:49:46,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 606 transitions. [2019-09-10 02:49:46,460 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 606 transitions. Word has length 89 [2019-09-10 02:49:46,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:46,461 INFO L475 AbstractCegarLoop]: Abstraction has 515 states and 606 transitions. [2019-09-10 02:49:46,461 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:49:46,461 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 606 transitions. [2019-09-10 02:49:46,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:46,463 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:46,464 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:46,464 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:46,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1358106852, now seen corresponding path program 1 times [2019-09-10 02:49:46,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:46,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:46,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:46,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:46,466 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:46,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:46,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 02:49:46,585 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:46,586 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 02:49:46,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 02:49:46,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:46,587 INFO L87 Difference]: Start difference. First operand 515 states and 606 transitions. Second operand 9 states. [2019-09-10 02:49:46,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:46,642 INFO L93 Difference]: Finished difference Result 521 states and 613 transitions. [2019-09-10 02:49:46,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 02:49:46,643 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2019-09-10 02:49:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:46,646 INFO L225 Difference]: With dead ends: 521 [2019-09-10 02:49:46,646 INFO L226 Difference]: Without dead ends: 521 [2019-09-10 02:49:46,647 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2019-09-10 02:49:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 515. [2019-09-10 02:49:46,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-09-10 02:49:46,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 604 transitions. [2019-09-10 02:49:46,668 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 604 transitions. Word has length 89 [2019-09-10 02:49:46,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:46,669 INFO L475 AbstractCegarLoop]: Abstraction has 515 states and 604 transitions. [2019-09-10 02:49:46,669 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 02:49:46,669 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 604 transitions. [2019-09-10 02:49:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-10 02:49:46,671 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:46,671 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:46,672 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:46,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:46,672 INFO L82 PathProgramCache]: Analyzing trace with hash -967187523, now seen corresponding path program 1 times [2019-09-10 02:49:46,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:46,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:46,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:46,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:46,674 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:46,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:46,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:49:46,809 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:46,809 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:49:46,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:49:46,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:46,810 INFO L87 Difference]: Start difference. First operand 515 states and 604 transitions. Second operand 10 states. [2019-09-10 02:49:47,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:47,079 INFO L93 Difference]: Finished difference Result 521 states and 598 transitions. [2019-09-10 02:49:47,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 02:49:47,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2019-09-10 02:49:47,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:47,082 INFO L225 Difference]: With dead ends: 521 [2019-09-10 02:49:47,083 INFO L226 Difference]: Without dead ends: 521 [2019-09-10 02:49:47,083 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:49:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2019-09-10 02:49:47,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 500. [2019-09-10 02:49:47,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2019-09-10 02:49:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 569 transitions. [2019-09-10 02:49:47,101 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 569 transitions. Word has length 90 [2019-09-10 02:49:47,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:47,102 INFO L475 AbstractCegarLoop]: Abstraction has 500 states and 569 transitions. [2019-09-10 02:49:47,102 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:49:47,102 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 569 transitions. [2019-09-10 02:49:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-09-10 02:49:47,105 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:47,106 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:47,106 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:47,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:47,106 INFO L82 PathProgramCache]: Analyzing trace with hash 890937388, now seen corresponding path program 1 times [2019-09-10 02:49:47,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:47,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:47,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:47,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:47,108 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 02:49:47,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:49:47,188 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:49:47,189 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2019-09-10 02:49:47,191 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [113], [115], [116], [119], [121], [124], [131], [134], [136], [145], [149], [153], [156], [159], [161], [167], [169], [175], [178], [188], [189], [199], [200], [201], [202], [203], [205], [208], [212], [213], [214], [215], [218], [221], [225], [231], [260], [264], [267], [270], [272], [275], [285], [288], [292], [293], [296], [297], [298], [325], [326], [391], [392], [402], [404], [407], [409], [411], [414], [416], [421], [427], [428], [436], [437], [438], [439], [440], [441], [442], [443], [444], [476], [477], [478], [479], [480], [481], [484], [485], [486], [487], [492], [493], [496], [497], [498], [499], [500], [501], [502], [503], [508], [509], [510], [511], [518], [526], [527], [528], [529], [530], [531], [532], [534], [535], [536] [2019-09-10 02:49:47,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:49:47,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:49:47,371 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:49:47,373 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. [2019-09-10 02:49:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:47,380 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:49:47,486 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:49:47,487 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:49:47,494 INFO L420 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2019-09-10 02:49:47,494 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:49:47,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:49:47,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-10 02:49:47,497 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:47,498 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:47,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:47,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:47,499 INFO L87 Difference]: Start difference. First operand 500 states and 569 transitions. Second operand 2 states. [2019-09-10 02:49:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:47,500 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:49:47,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:47,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 140 [2019-09-10 02:49:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:47,501 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:49:47,501 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:47,502 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:47,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:47,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 140 [2019-09-10 02:49:47,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:47,504 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:47,504 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:47,504 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:47,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:47,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:47 BoogieIcfgContainer [2019-09-10 02:49:47,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:47,515 INFO L168 Benchmark]: Toolchain (without parser) took 6095.38 ms. Allocated memory was 134.2 MB in the beginning and 310.9 MB in the end (delta: 176.7 MB). Free memory was 89.2 MB in the beginning and 189.0 MB in the end (delta: -99.9 MB). Peak memory consumption was 76.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:47,517 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:47,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.16 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.0 MB in the beginning and 165.5 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:47,520 INFO L168 Benchmark]: Boogie Preprocessor took 106.30 ms. Allocated memory is still 200.8 MB. Free memory was 165.5 MB in the beginning and 161.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:47,528 INFO L168 Benchmark]: RCFGBuilder took 1160.66 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 161.2 MB in the beginning and 190.5 MB in the end (delta: -29.2 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:47,529 INFO L168 Benchmark]: TraceAbstraction took 4158.96 ms. Allocated memory was 228.1 MB in the beginning and 310.9 MB in the end (delta: 82.8 MB). Free memory was 190.5 MB in the beginning and 189.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:47,540 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.16 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.0 MB in the beginning and 165.5 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.30 ms. Allocated memory is still 200.8 MB. Free memory was 165.5 MB in the beginning and 161.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1160.66 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 161.2 MB in the beginning and 190.5 MB in the end (delta: -29.2 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4158.96 ms. Allocated memory was 228.1 MB in the beginning and 310.9 MB in the end (delta: 82.8 MB). Free memory was 190.5 MB in the beginning and 189.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 694]: 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 41 procedures, 242 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1476 SDtfs, 664 SDslu, 4601 SDs, 0 SdLazy, 737 SolverSat, 159 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=515occurred in iteration=7, 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, 0.935251798561151 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 74 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 806 ConstructedInterpolants, 0 QuantifiedInterpolants, 102235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 23/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...