java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:27,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:27,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:27,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:27,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:27,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:27,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:27,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:27,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:27,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:27,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:27,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:27,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:27,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:27,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:27,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:27,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:27,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:27,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:27,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:27,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:27,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:27,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:27,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:27,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:27,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:27,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:27,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:27,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:27,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:27,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:27,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:27,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:27,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:27,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:27,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:27,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:27,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:27,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:27,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:27,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:27,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:58:27,435 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:27,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:27,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:27,436 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:27,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:27,437 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:27,437 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:27,438 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:27,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:27,439 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:27,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:27,441 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:27,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:27,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:27,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:27,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:27,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:27,443 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:27,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:27,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:27,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:27,444 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:27,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:27,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:27,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:27,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:27,446 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:27,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:27,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:27,446 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:27,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:27,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:27,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:27,499 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:27,499 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:27,500 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2019-10-03 02:58:27,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8087b71a0/39023f88e23d4652a3142fe8bb3e9aeb/FLAG7dcb44191 [2019-10-03 02:58:28,073 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:28,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2019-10-03 02:58:28,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8087b71a0/39023f88e23d4652a3142fe8bb3e9aeb/FLAG7dcb44191 [2019-10-03 02:58:28,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8087b71a0/39023f88e23d4652a3142fe8bb3e9aeb [2019-10-03 02:58:28,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:28,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:28,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:28,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:28,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:28,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:28" (1/1) ... [2019-10-03 02:58:28,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d0606c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:28, skipping insertion in model container [2019-10-03 02:58:28,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:28" (1/1) ... [2019-10-03 02:58:28,461 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:28,527 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:29,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:29,090 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:29,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:29,220 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:29,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29 WrapperNode [2019-10-03 02:58:29,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:29,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:29,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:29,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:29,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:29,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:29,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:29,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:29,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:30,625 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:30,625 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:30,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:30 BoogieIcfgContainer [2019-10-03 02:58:30,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:30,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:30,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:30,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:30,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:28" (1/3) ... [2019-10-03 02:58:30,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732898e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:30, skipping insertion in model container [2019-10-03 02:58:30,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29" (2/3) ... [2019-10-03 02:58:30,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732898e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:30, skipping insertion in model container [2019-10-03 02:58:30,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:30" (3/3) ... [2019-10-03 02:58:30,635 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2019-10-03 02:58:30,645 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:30,658 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:30,676 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:30,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:30,709 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:30,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:30,709 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:30,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:30,709 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:30,709 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:30,710 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2019-10-03 02:58:30,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:30,742 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:30,743 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:30,746 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:30,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:30,752 INFO L82 PathProgramCache]: Analyzing trace with hash 916136138, now seen corresponding path program 1 times [2019-10-03 02:58:30,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:30,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:30,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:30,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:30,815 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:31,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:31,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:31,146 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:31,154 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:31,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:31,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:31,175 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2019-10-03 02:58:31,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:31,225 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2019-10-03 02:58:31,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:31,227 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:31,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:31,240 INFO L225 Difference]: With dead ends: 139 [2019-10-03 02:58:31,240 INFO L226 Difference]: Without dead ends: 128 [2019-10-03 02:58:31,242 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-03 02:58:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-03 02:58:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-03 02:58:31,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2019-10-03 02:58:31,292 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2019-10-03 02:58:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:31,293 INFO L475 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2019-10-03 02:58:31,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2019-10-03 02:58:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:31,297 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:31,297 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:31,298 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:31,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1104947330, now seen corresponding path program 1 times [2019-10-03 02:58:31,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:31,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:31,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:31,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:31,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:31,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:31,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:31,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:31,408 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:31,410 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:31,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:31,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:31,411 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2019-10-03 02:58:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:31,428 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2019-10-03 02:58:31,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:31,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:31,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:31,431 INFO L225 Difference]: With dead ends: 119 [2019-10-03 02:58:31,431 INFO L226 Difference]: Without dead ends: 119 [2019-10-03 02:58:31,432 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:31,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-03 02:58:31,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-03 02:58:31,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-03 02:58:31,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2019-10-03 02:58:31,444 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2019-10-03 02:58:31,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:31,445 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2019-10-03 02:58:31,445 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:31,445 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2019-10-03 02:58:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:58:31,447 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:31,448 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:31,448 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:31,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:31,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1852359913, now seen corresponding path program 1 times [2019-10-03 02:58:31,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:31,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:31,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:31,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:31,452 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:31,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:31,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:31,648 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:31,649 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:31,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:31,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:31,650 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 7 states. [2019-10-03 02:58:31,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:31,983 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2019-10-03 02:58:31,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:31,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-03 02:58:31,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:31,986 INFO L225 Difference]: With dead ends: 119 [2019-10-03 02:58:31,986 INFO L226 Difference]: Without dead ends: 119 [2019-10-03 02:58:31,986 INFO L640 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 [2019-10-03 02:58:31,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-03 02:58:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-03 02:58:31,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-03 02:58:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2019-10-03 02:58:31,997 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2019-10-03 02:58:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:31,998 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2019-10-03 02:58:31,998 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:31,998 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2019-10-03 02:58:32,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:58:32,000 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,001 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:32,001 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,002 INFO L82 PathProgramCache]: Analyzing trace with hash 458129541, now seen corresponding path program 1 times [2019-10-03 02:58:32,002 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,005 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:32,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:32,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:32,172 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:32,174 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:32,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:32,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:32,175 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 5 states. [2019-10-03 02:58:32,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:32,670 INFO L93 Difference]: Finished difference Result 213 states and 246 transitions. [2019-10-03 02:58:32,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:32,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-03 02:58:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:32,673 INFO L225 Difference]: With dead ends: 213 [2019-10-03 02:58:32,677 INFO L226 Difference]: Without dead ends: 213 [2019-10-03 02:58:32,677 INFO L640 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 [2019-10-03 02:58:32,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-10-03 02:58:32,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 195. [2019-10-03 02:58:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-10-03 02:58:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2019-10-03 02:58:32,716 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2019-10-03 02:58:32,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:32,717 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2019-10-03 02:58:32,717 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2019-10-03 02:58:32,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-03 02:58:32,719 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,719 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:32,720 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1170867649, now seen corresponding path program 1 times [2019-10-03 02:58:32,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,727 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:32,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:32,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:32,885 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:32,885 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:32,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:32,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:32,886 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 10 states. [2019-10-03 02:58:33,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:33,593 INFO L93 Difference]: Finished difference Result 447 states and 534 transitions. [2019-10-03 02:58:33,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:33,594 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2019-10-03 02:58:33,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:33,599 INFO L225 Difference]: With dead ends: 447 [2019-10-03 02:58:33,599 INFO L226 Difference]: Without dead ends: 447 [2019-10-03 02:58:33,600 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:33,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-03 02:58:33,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 437. [2019-10-03 02:58:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-03 02:58:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 517 transitions. [2019-10-03 02:58:33,640 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 517 transitions. Word has length 78 [2019-10-03 02:58:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:33,641 INFO L475 AbstractCegarLoop]: Abstraction has 437 states and 517 transitions. [2019-10-03 02:58:33,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 517 transitions. [2019-10-03 02:58:33,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-03 02:58:33,645 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:33,646 INFO L411 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] [2019-10-03 02:58:33,646 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:33,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash -772272072, now seen corresponding path program 1 times [2019-10-03 02:58:33,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:33,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:33,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:33,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:33,650 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:58:33,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:33,776 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:33,778 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2019-10-03 02:58:33,781 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [102], [104], [107], [111], [112], [113], [129], [132], [134], [135], [138], [140], [143], [150], [153], [155], [164], [168], [172], [178], [180], [186], [188], [191], [206], [207], [217], [218], [219], [220], [221], [223], [226], [230], [231], [236], [239], [243], [249], [278], [282], [283], [286], [288], [291], [301], [309], [312], [313], [314], [341], [342], [407], [408], [418], [426], [427], [428], [429], [430], [432], [433], [434], [435], [436], [437], [438], [439], [440], [472], [473], [474], [475], [476], [477], [480], [481], [486], [487], [490], [491], [492], [493], [494], [495], [496], [497], [502], [503], [504], [505], [512], [520], [521], [522] [2019-10-03 02:58:33,825 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:33,826 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:33,902 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:33,904 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. [2019-10-03 02:58:33,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:33,909 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:33,960 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:33,960 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:33,965 INFO L420 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2019-10-03 02:58:33,965 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:33,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:33,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-10-03 02:58:33,966 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:33,967 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:33,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:33,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:33,968 INFO L87 Difference]: Start difference. First operand 437 states and 517 transitions. Second operand 2 states. [2019-10-03 02:58:33,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:33,968 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:33,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:33,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 128 [2019-10-03 02:58:33,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:33,969 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:33,969 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:33,970 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:33,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:33,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2019-10-03 02:58:33,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:33,971 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:33,971 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:33,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:33,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:33,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:33 BoogieIcfgContainer [2019-10-03 02:58:33,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:33,979 INFO L168 Benchmark]: Toolchain (without parser) took 5533.66 ms. Allocated memory was 141.0 MB in the beginning and 258.5 MB in the end (delta: 117.4 MB). Free memory was 86.4 MB in the beginning and 160.4 MB in the end (delta: -74.0 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:33,982 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:33,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.52 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 86.2 MB in the beginning and 164.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:33,987 INFO L168 Benchmark]: Boogie Preprocessor took 122.98 ms. Allocated memory is still 200.8 MB. Free memory was 164.8 MB in the beginning and 160.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:33,988 INFO L168 Benchmark]: RCFGBuilder took 1281.14 ms. Allocated memory was 200.8 MB in the beginning and 227.5 MB in the end (delta: 26.7 MB). Free memory was 160.7 MB in the beginning and 192.6 MB in the end (delta: -31.9 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:33,990 INFO L168 Benchmark]: TraceAbstraction took 3348.80 ms. Allocated memory was 227.5 MB in the beginning and 258.5 MB in the end (delta: 30.9 MB). Free memory was 191.3 MB in the beginning and 160.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:33,997 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.52 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 86.2 MB in the beginning and 164.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.98 ms. Allocated memory is still 200.8 MB. Free memory was 164.8 MB in the beginning and 160.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1281.14 ms. Allocated memory was 200.8 MB in the beginning and 227.5 MB in the end (delta: 26.7 MB). Free memory was 160.7 MB in the beginning and 192.6 MB in the end (delta: -31.9 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3348.80 ms. Allocated memory was 227.5 MB in the beginning and 258.5 MB in the end (delta: 30.9 MB). Free memory was 191.3 MB in the beginning and 160.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 755 SDtfs, 628 SDslu, 1572 SDs, 0 SdLazy, 671 SolverSat, 216 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=5, 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, 0.9606299212598425 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 414 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 408 ConstructedInterpolants, 0 QuantifiedInterpolants, 49050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 22/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...