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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:47,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:47,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:47,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:47,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:47,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:47,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:47,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:47,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:47,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:47,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:47,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:47,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:47,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:47,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:47,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:47,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:47,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:47,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:47,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:47,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:47,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:47,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:47,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:47,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:47,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:47,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:47,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:47,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:47,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:47,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:47,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:47,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:47,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:47,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:47,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:47,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:47,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:47,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:47,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:47,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:47,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:47,512 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:47,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:47,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:47,514 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:47,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:47,515 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:47,515 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:47,515 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:47,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:47,516 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:47,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:47,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:47,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:47,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:47,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:47,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:47,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:47,520 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:47,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:47,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:47,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:47,521 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:47,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:47,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:47,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:47,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:47,522 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:47,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:47,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:47,523 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:47,553 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:47,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:47,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:47,568 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:47,568 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:47,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2019-09-20 13:30:47,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f4ea570/17aa67c00d74496aa1440b2dd5121991/FLAGe10f5c610 [2019-09-20 13:30:48,186 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:48,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2019-09-20 13:30:48,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f4ea570/17aa67c00d74496aa1440b2dd5121991/FLAGe10f5c610 [2019-09-20 13:30:48,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f4ea570/17aa67c00d74496aa1440b2dd5121991 [2019-09-20 13:30:48,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:48,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:48,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:48,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:48,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:48,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:48" (1/1) ... [2019-09-20 13:30:48,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3d3672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:48, skipping insertion in model container [2019-09-20 13:30:48,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:48" (1/1) ... [2019-09-20 13:30:48,511 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:48,568 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:49,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:49,038 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:49,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:49,174 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:49,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49 WrapperNode [2019-09-20 13:30:49,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:49,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:49,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:49,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:49,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... [2019-09-20 13:30:49,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... [2019-09-20 13:30:49,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... [2019-09-20 13:30:49,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... [2019-09-20 13:30:49,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... [2019-09-20 13:30:49,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... [2019-09-20 13:30:49,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... [2019-09-20 13:30:49,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:49,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:49,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:49,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:49,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:50,498 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:50,499 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:50,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:50 BoogieIcfgContainer [2019-09-20 13:30:50,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:50,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:50,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:50,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:50,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:48" (1/3) ... [2019-09-20 13:30:50,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc97840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:50, skipping insertion in model container [2019-09-20 13:30:50,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:49" (2/3) ... [2019-09-20 13:30:50,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc97840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:50, skipping insertion in model container [2019-09-20 13:30:50,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:50" (3/3) ... [2019-09-20 13:30:50,510 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2019-09-20 13:30:50,521 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:50,530 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:50,566 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:50,594 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:50,595 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:50,595 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:50,595 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:50,595 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:50,596 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:50,596 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:50,596 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-09-20 13:30:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:30:50,629 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:50,631 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:50,633 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:50,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1999815947, now seen corresponding path program 1 times [2019-09-20 13:30:50,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:50,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:50,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:50,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:50,703 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:51,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:51,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:51,044 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:51,050 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:51,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:51,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:51,068 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2019-09-20 13:30:51,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:51,096 INFO L93 Difference]: Finished difference Result 125 states and 145 transitions. [2019-09-20 13:30:51,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:51,098 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:30:51,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:51,111 INFO L225 Difference]: With dead ends: 125 [2019-09-20 13:30:51,112 INFO L226 Difference]: Without dead ends: 114 [2019-09-20 13:30:51,114 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:51,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-20 13:30:51,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-20 13:30:51,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-20 13:30:51,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2019-09-20 13:30:51,178 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2019-09-20 13:30:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:51,178 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2019-09-20 13:30:51,178 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2019-09-20 13:30:51,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:30:51,182 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:51,182 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:51,182 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:51,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:51,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2091613530, now seen corresponding path program 1 times [2019-09-20 13:30:51,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:51,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:51,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:51,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:51,187 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:51,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:51,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:51,365 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:51,367 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:51,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:51,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:51,369 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 3 states. [2019-09-20 13:30:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:51,395 INFO L93 Difference]: Finished difference Result 105 states and 121 transitions. [2019-09-20 13:30:51,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:51,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:30:51,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:51,398 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:30:51,398 INFO L226 Difference]: Without dead ends: 105 [2019-09-20 13:30:51,399 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-20 13:30:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-20 13:30:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-20 13:30:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-09-20 13:30:51,410 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2019-09-20 13:30:51,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:51,411 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-09-20 13:30:51,411 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-09-20 13:30:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:51,413 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:51,413 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:51,414 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:51,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:51,414 INFO L82 PathProgramCache]: Analyzing trace with hash 969654456, now seen corresponding path program 1 times [2019-09-20 13:30:51,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:51,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:51,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:51,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:51,417 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:51,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:51,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:51,544 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:51,544 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:51,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:51,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:51,545 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 7 states. [2019-09-20 13:30:51,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:51,976 INFO L93 Difference]: Finished difference Result 236 states and 282 transitions. [2019-09-20 13:30:51,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:51,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:30:51,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:51,981 INFO L225 Difference]: With dead ends: 236 [2019-09-20 13:30:51,981 INFO L226 Difference]: Without dead ends: 236 [2019-09-20 13:30:51,981 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 [2019-09-20 13:30:51,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-09-20 13:30:52,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 224. [2019-09-20 13:30:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-09-20 13:30:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 270 transitions. [2019-09-20 13:30:52,040 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 270 transitions. Word has length 52 [2019-09-20 13:30:52,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:52,040 INFO L475 AbstractCegarLoop]: Abstraction has 224 states and 270 transitions. [2019-09-20 13:30:52,040 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 270 transitions. [2019-09-20 13:30:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:52,050 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:52,051 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] [2019-09-20 13:30:52,051 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:52,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1151197578, now seen corresponding path program 1 times [2019-09-20 13:30:52,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:52,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:52,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:52,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:52,055 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:52,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:52,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:30:52,308 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:52,310 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:30:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:30:52,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:52,311 INFO L87 Difference]: Start difference. First operand 224 states and 270 transitions. Second operand 10 states. [2019-09-20 13:30:52,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:52,889 INFO L93 Difference]: Finished difference Result 576 states and 721 transitions. [2019-09-20 13:30:52,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:30:52,890 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-20 13:30:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:52,903 INFO L225 Difference]: With dead ends: 576 [2019-09-20 13:30:52,904 INFO L226 Difference]: Without dead ends: 576 [2019-09-20 13:30:52,904 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 [2019-09-20 13:30:52,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-09-20 13:30:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 564. [2019-09-20 13:30:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-09-20 13:30:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 700 transitions. [2019-09-20 13:30:52,977 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 700 transitions. Word has length 57 [2019-09-20 13:30:52,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:52,978 INFO L475 AbstractCegarLoop]: Abstraction has 564 states and 700 transitions. [2019-09-20 13:30:52,978 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:30:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 700 transitions. [2019-09-20 13:30:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:30:52,989 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:52,991 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:52,991 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:52,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:52,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1679599728, now seen corresponding path program 1 times [2019-09-20 13:30:52,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:52,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:52,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:52,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:52,997 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:53,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:53,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:53,098 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:53,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:53,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:53,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:53,099 INFO L87 Difference]: Start difference. First operand 564 states and 700 transitions. Second operand 4 states. [2019-09-20 13:30:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:53,238 INFO L93 Difference]: Finished difference Result 408 states and 476 transitions. [2019-09-20 13:30:53,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:30:53,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-20 13:30:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:53,242 INFO L225 Difference]: With dead ends: 408 [2019-09-20 13:30:53,243 INFO L226 Difference]: Without dead ends: 408 [2019-09-20 13:30:53,243 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 [2019-09-20 13:30:53,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2019-09-20 13:30:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 396. [2019-09-20 13:30:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-09-20 13:30:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 458 transitions. [2019-09-20 13:30:53,267 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 458 transitions. Word has length 61 [2019-09-20 13:30:53,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:53,267 INFO L475 AbstractCegarLoop]: Abstraction has 396 states and 458 transitions. [2019-09-20 13:30:53,267 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 458 transitions. [2019-09-20 13:30:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:53,272 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:53,272 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:53,272 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:53,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:53,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1114958929, now seen corresponding path program 1 times [2019-09-20 13:30:53,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:53,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:53,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:53,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:53,276 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-20 13:30:53,369 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:53,369 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:53,370 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2019-09-20 13:30:53,373 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [158], [167], [171], [175], [178], [183], [189], [191], [197], [200], [203], [224], [225], [233], [240], [243], [281], [285], [286], [289], [290], [291], [384], [385], [395], [403], [404], [405], [406], [407], [409], [410], [411], [412], [413], [414], [415], [416], [417], [461], [462], [467], [468], [469], [470], [477], [478], [485], [493], [494], [495] [2019-09-20 13:30:53,428 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:53,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:53,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:53,527 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:30:53,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:53,532 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:53,576 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:53,577 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:53,580 INFO L420 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2019-09-20 13:30:53,580 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:53,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:53,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:30:53,582 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:53,582 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:53,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:53,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:53,583 INFO L87 Difference]: Start difference. First operand 396 states and 458 transitions. Second operand 2 states. [2019-09-20 13:30:53,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:53,584 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:53,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:53,584 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 89 [2019-09-20 13:30:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:53,585 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:53,585 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:53,585 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:53,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:53,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:53,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-20 13:30:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:53,587 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:53,587 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:53,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:53,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:53 BoogieIcfgContainer [2019-09-20 13:30:53,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:53,596 INFO L168 Benchmark]: Toolchain (without parser) took 5101.90 ms. Allocated memory was 131.1 MB in the beginning and 270.0 MB in the end (delta: 138.9 MB). Free memory was 85.3 MB in the beginning and 82.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 142.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:53,597 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 131.1 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:53,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.46 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 85.1 MB in the beginning and 163.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:53,598 INFO L168 Benchmark]: Boogie Preprocessor took 90.42 ms. Allocated memory is still 198.2 MB. Free memory was 163.7 MB in the beginning and 159.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:53,599 INFO L168 Benchmark]: RCFGBuilder took 1233.98 ms. Allocated memory is still 198.2 MB. Free memory was 159.2 MB in the beginning and 74.6 MB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:53,600 INFO L168 Benchmark]: TraceAbstraction took 3091.39 ms. Allocated memory was 198.2 MB in the beginning and 270.0 MB in the end (delta: 71.8 MB). Free memory was 73.9 MB in the beginning and 82.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:53,604 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 131.1 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 681.46 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 85.1 MB in the beginning and 163.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.42 ms. Allocated memory is still 198.2 MB. Free memory was 163.7 MB in the beginning and 159.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1233.98 ms. Allocated memory is still 198.2 MB. Free memory was 159.2 MB in the beginning and 74.6 MB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3091.39 ms. Allocated memory was 198.2 MB in the beginning and 270.0 MB in the end (delta: 71.8 MB). Free memory was 73.9 MB in the beginning and 82.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 643]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 224 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 643 SDtfs, 457 SDslu, 1496 SDs, 0 SdLazy, 496 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=564occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0795454545454546 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 43640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...