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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:12,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:12,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:12,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:12,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:12,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:12,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:12,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:12,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:12,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:12,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:12,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:12,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:12,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:12,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:12,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:12,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:12,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:12,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:12,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:12,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:12,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:12,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:12,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:12,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:12,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:12,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:12,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:12,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:12,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:12,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:12,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:12,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:12,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:12,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:12,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:12,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:12,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:12,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:12,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:12,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:12,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:09:12,483 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:12,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:12,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:12,484 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:12,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:12,486 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:12,486 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:12,486 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:12,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:12,486 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:12,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:12,487 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:12,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:12,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:12,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:12,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:12,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:12,489 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:12,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:12,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:12,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:12,490 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:12,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:12,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:12,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:12,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:12,492 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:12,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:12,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:12,492 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:12,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:12,556 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:12,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:12,560 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:12,561 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:12,561 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2019-09-16 17:09:12,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20d35f2f1/648d83684ec74f5180cffd2ea84acde4/FLAG0bf6abe38 [2019-09-16 17:09:13,128 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:13,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2019-09-16 17:09:13,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20d35f2f1/648d83684ec74f5180cffd2ea84acde4/FLAG0bf6abe38 [2019-09-16 17:09:13,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20d35f2f1/648d83684ec74f5180cffd2ea84acde4 [2019-09-16 17:09:13,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:13,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:13,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:13,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:13,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:13,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:13" (1/1) ... [2019-09-16 17:09:13,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a67fb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:13, skipping insertion in model container [2019-09-16 17:09:13,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:13" (1/1) ... [2019-09-16 17:09:13,468 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:13,508 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:13,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:13,959 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:14,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:14,101 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:14,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14 WrapperNode [2019-09-16 17:09:14,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:14,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:14,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:14,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:14,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... [2019-09-16 17:09:14,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... [2019-09-16 17:09:14,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... [2019-09-16 17:09:14,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... [2019-09-16 17:09:14,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... [2019-09-16 17:09:14,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... [2019-09-16 17:09:14,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... [2019-09-16 17:09:14,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:14,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:14,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:14,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:14,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-16 17:09:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:09:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:09:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:09:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:09:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:09:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:09:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-16 17:09:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:15,304 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:15,305 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:15,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:15 BoogieIcfgContainer [2019-09-16 17:09:15,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:15,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:15,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:15,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:15,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:13" (1/3) ... [2019-09-16 17:09:15,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22caa0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:15, skipping insertion in model container [2019-09-16 17:09:15,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:14" (2/3) ... [2019-09-16 17:09:15,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22caa0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:15, skipping insertion in model container [2019-09-16 17:09:15,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:15" (3/3) ... [2019-09-16 17:09:15,314 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2019-09-16 17:09:15,324 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:15,332 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:15,348 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:15,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:15,374 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:15,375 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:15,375 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:15,376 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:15,376 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:15,376 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:15,377 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:15,407 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2019-09-16 17:09:15,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:09:15,427 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:15,428 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:15,432 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:15,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:15,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1116469353, now seen corresponding path program 1 times [2019-09-16 17:09:15,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:15,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:15,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,499 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:15,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:15,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:15,821 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:15,827 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:15,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:15,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:15,846 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 2 states. [2019-09-16 17:09:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:15,883 INFO L93 Difference]: Finished difference Result 163 states and 192 transitions. [2019-09-16 17:09:15,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:15,884 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:09:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:15,896 INFO L225 Difference]: With dead ends: 163 [2019-09-16 17:09:15,897 INFO L226 Difference]: Without dead ends: 152 [2019-09-16 17:09:15,898 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:15,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-09-16 17:09:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-09-16 17:09:15,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-09-16 17:09:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2019-09-16 17:09:15,949 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 46 [2019-09-16 17:09:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:15,950 INFO L475 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2019-09-16 17:09:15,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2019-09-16 17:09:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:09:15,953 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:15,954 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:15,954 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:15,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1310027705, now seen corresponding path program 1 times [2019-09-16 17:09:15,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:15,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:15,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:16,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:16,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:16,111 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:16,113 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:16,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:16,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:16,114 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand 3 states. [2019-09-16 17:09:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:16,142 INFO L93 Difference]: Finished difference Result 143 states and 168 transitions. [2019-09-16 17:09:16,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:16,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:16,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:16,147 INFO L225 Difference]: With dead ends: 143 [2019-09-16 17:09:16,147 INFO L226 Difference]: Without dead ends: 143 [2019-09-16 17:09:16,150 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:16,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-09-16 17:09:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-09-16 17:09:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-09-16 17:09:16,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2019-09-16 17:09:16,169 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 47 [2019-09-16 17:09:16,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:16,170 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2019-09-16 17:09:16,170 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2019-09-16 17:09:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:09:16,172 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:16,172 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:16,173 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:16,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:16,173 INFO L82 PathProgramCache]: Analyzing trace with hash -2059448103, now seen corresponding path program 1 times [2019-09-16 17:09:16,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:16,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:16,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,176 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:16,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:16,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:16,346 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:16,346 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:16,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:16,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:16,347 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 7 states. [2019-09-16 17:09:16,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:16,850 INFO L93 Difference]: Finished difference Result 312 states and 374 transitions. [2019-09-16 17:09:16,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:16,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-16 17:09:16,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:16,856 INFO L225 Difference]: With dead ends: 312 [2019-09-16 17:09:16,856 INFO L226 Difference]: Without dead ends: 312 [2019-09-16 17:09:16,857 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:16,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-09-16 17:09:16,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 304. [2019-09-16 17:09:16,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-09-16 17:09:16,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 368 transitions. [2019-09-16 17:09:16,908 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 368 transitions. Word has length 51 [2019-09-16 17:09:16,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:16,908 INFO L475 AbstractCegarLoop]: Abstraction has 304 states and 368 transitions. [2019-09-16 17:09:16,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 368 transitions. [2019-09-16 17:09:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:09:16,913 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:16,913 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:16,913 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:16,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:16,914 INFO L82 PathProgramCache]: Analyzing trace with hash -535477179, now seen corresponding path program 1 times [2019-09-16 17:09:16,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:16,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:16,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,960 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:17,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:17,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:09:17,148 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:17,148 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:09:17,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:09:17,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:17,149 INFO L87 Difference]: Start difference. First operand 304 states and 368 transitions. Second operand 10 states. [2019-09-16 17:09:17,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:17,792 INFO L93 Difference]: Finished difference Result 816 states and 1033 transitions. [2019-09-16 17:09:17,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:09:17,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-16 17:09:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:17,800 INFO L225 Difference]: With dead ends: 816 [2019-09-16 17:09:17,801 INFO L226 Difference]: Without dead ends: 816 [2019-09-16 17:09:17,801 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:09:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2019-09-16 17:09:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 804. [2019-09-16 17:09:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2019-09-16 17:09:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1012 transitions. [2019-09-16 17:09:17,887 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1012 transitions. Word has length 57 [2019-09-16 17:09:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:17,888 INFO L475 AbstractCegarLoop]: Abstraction has 804 states and 1012 transitions. [2019-09-16 17:09:17,888 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:09:17,888 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1012 transitions. [2019-09-16 17:09:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:09:17,896 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:17,896 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:17,896 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:17,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:17,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1450049621, now seen corresponding path program 1 times [2019-09-16 17:09:17,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:17,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:17,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:17,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:17,902 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:18,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:18,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:09:18,020 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:18,020 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:09:18,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:09:18,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:09:18,022 INFO L87 Difference]: Start difference. First operand 804 states and 1012 transitions. Second operand 4 states. [2019-09-16 17:09:18,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:18,392 INFO L93 Difference]: Finished difference Result 1192 states and 1569 transitions. [2019-09-16 17:09:18,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:09:18,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-16 17:09:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:18,400 INFO L225 Difference]: With dead ends: 1192 [2019-09-16 17:09:18,400 INFO L226 Difference]: Without dead ends: 1192 [2019-09-16 17:09:18,401 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:09:18,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2019-09-16 17:09:18,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1057. [2019-09-16 17:09:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2019-09-16 17:09:18,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1336 transitions. [2019-09-16 17:09:18,452 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1336 transitions. Word has length 61 [2019-09-16 17:09:18,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:18,452 INFO L475 AbstractCegarLoop]: Abstraction has 1057 states and 1336 transitions. [2019-09-16 17:09:18,452 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:09:18,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1336 transitions. [2019-09-16 17:09:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:09:18,455 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:18,455 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:18,455 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:18,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:18,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2144996460, now seen corresponding path program 1 times [2019-09-16 17:09:18,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:18,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:18,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:18,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:18,459 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:18,548 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-16 17:09:18,548 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:09:18,548 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:09:18,549 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2019-09-16 17:09:18,551 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [164], [173], [177], [181], [184], [189], [195], [197], [200], [202], [205], [240], [241], [247], [254], [257], [314], [318], [319], [341], [342], [343], [436], [437], [447], [455], [456], [457], [458], [459], [461], [462], [463], [464], [465], [466], [467], [468], [469], [513], [514], [517], [518], [519], [520], [529], [530], [553], [561], [562], [563] [2019-09-16 17:09:18,584 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:09:18,584 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:09:18,646 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:09:18,647 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:09:18,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:18,651 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:09:18,690 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:09:18,691 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:09:18,694 INFO L420 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2019-09-16 17:09:18,694 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:09:18,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:09:18,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-16 17:09:18,695 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:18,696 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:18,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:18,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:18,697 INFO L87 Difference]: Start difference. First operand 1057 states and 1336 transitions. Second operand 2 states. [2019-09-16 17:09:18,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:18,697 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:09:18,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:18,698 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 88 [2019-09-16 17:09:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:18,698 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:09:18,698 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:18,698 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:18,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-09-16 17:09:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:18,700 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:18,700 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:18,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:18,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:18 BoogieIcfgContainer [2019-09-16 17:09:18,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:18,708 INFO L168 Benchmark]: Toolchain (without parser) took 5257.72 ms. Allocated memory was 137.9 MB in the beginning and 270.0 MB in the end (delta: 132.1 MB). Free memory was 84.6 MB in the beginning and 163.4 MB in the end (delta: -78.8 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:18,709 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:18,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.40 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 84.4 MB in the beginning and 162.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:18,711 INFO L168 Benchmark]: Boogie Preprocessor took 98.00 ms. Allocated memory is still 198.2 MB. Free memory was 162.3 MB in the beginning and 158.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:18,712 INFO L168 Benchmark]: RCFGBuilder took 1105.04 ms. Allocated memory was 198.2 MB in the beginning and 218.6 MB in the end (delta: 20.4 MB). Free memory was 157.9 MB in the beginning and 187.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:18,716 INFO L168 Benchmark]: TraceAbstraction took 3397.91 ms. Allocated memory was 218.6 MB in the beginning and 270.0 MB in the end (delta: 51.4 MB). Free memory was 187.3 MB in the beginning and 163.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:18,722 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.40 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 84.4 MB in the beginning and 162.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.00 ms. Allocated memory is still 198.2 MB. Free memory was 162.3 MB in the beginning and 158.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1105.04 ms. Allocated memory was 198.2 MB in the beginning and 218.6 MB in the end (delta: 20.4 MB). Free memory was 157.9 MB in the beginning and 187.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3397.91 ms. Allocated memory was 218.6 MB in the beginning and 270.0 MB in the end (delta: 51.4 MB). Free memory was 187.3 MB in the beginning and 163.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 430]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 926 SDtfs, 770 SDslu, 2152 SDs, 0 SdLazy, 842 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1057occurred 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, 1.0804597701149425 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 155 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 42856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 20/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...