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_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:39,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:39,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:39,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:39,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:39,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:39,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:39,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:39,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:39,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:39,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:39,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:39,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:39,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:39,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:39,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:39,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:39,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:39,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:39,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:39,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:39,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:39,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:39,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:39,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:39,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:39,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:39,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:39,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:39,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:39,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:39,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:39,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:39,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:39,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:39,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:39,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:39,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:39,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:39,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:39,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:39,561 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 17:09:39,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:39,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:39,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:39,577 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:39,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:39,578 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:39,578 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:39,578 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:39,579 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:39,579 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:39,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:39,580 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:39,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:39,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:39,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:39,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:39,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:39,581 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:39,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:39,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:39,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:39,582 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:39,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:39,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:39,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:39,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:39,583 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:39,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:39,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:39,583 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:39,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:39,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:39,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:39,640 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:39,640 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:39,641 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-09-16 17:09:39,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac31bda6/5413a07f14254a759c26c14daba17e3f/FLAG655d7b400 [2019-09-16 17:09:40,258 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:40,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-09-16 17:09:40,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac31bda6/5413a07f14254a759c26c14daba17e3f/FLAG655d7b400 [2019-09-16 17:09:40,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac31bda6/5413a07f14254a759c26c14daba17e3f [2019-09-16 17:09:40,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:40,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:40,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:40,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:40,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:40,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:40" (1/1) ... [2019-09-16 17:09:40,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ac3fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:40, skipping insertion in model container [2019-09-16 17:09:40,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:40" (1/1) ... [2019-09-16 17:09:40,582 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:40,642 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:41,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:41,124 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:41,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:41,246 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:41,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41 WrapperNode [2019-09-16 17:09:41,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:41,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:41,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:41,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:41,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (1/1) ... [2019-09-16 17:09:41,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (1/1) ... [2019-09-16 17:09:41,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (1/1) ... [2019-09-16 17:09:41,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (1/1) ... [2019-09-16 17:09:41,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (1/1) ... [2019-09-16 17:09:41,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (1/1) ... [2019-09-16 17:09:41,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (1/1) ... [2019-09-16 17:09:41,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:41,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:41,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:41,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:41,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (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 17:09:41,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:41,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:41,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:41,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:41,436 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:41,436 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:41,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:41,436 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:41,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:41,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:09:41,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:09:41,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:09:41,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:41,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:41,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:41,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:41,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:41,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:41,438 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:41,438 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:41,439 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:41,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:41,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:41,439 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:41,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:09:41,439 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:41,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:41,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:41,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:41,440 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:41,440 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:41,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:41,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:41,441 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:41,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:09:41,441 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:09:41,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:41,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:41,442 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:41,442 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:41,442 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:09:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:09:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:09:41,446 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:41,446 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:41,446 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:41,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:41,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:09:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:09:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:09:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:42,670 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:42,670 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:42,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:42 BoogieIcfgContainer [2019-09-16 17:09:42,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:42,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:42,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:42,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:42,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:40" (1/3) ... [2019-09-16 17:09:42,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494e696b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:42, skipping insertion in model container [2019-09-16 17:09:42,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:41" (2/3) ... [2019-09-16 17:09:42,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494e696b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:42, skipping insertion in model container [2019-09-16 17:09:42,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:42" (3/3) ... [2019-09-16 17:09:42,680 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2019-09-16 17:09:42,691 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:42,703 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:42,722 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:42,753 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:42,753 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:42,753 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:42,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:42,754 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:42,754 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:42,755 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:42,756 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:42,785 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-09-16 17:09:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-16 17:09:42,802 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:42,803 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:42,806 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:42,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:42,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1109188308, now seen corresponding path program 1 times [2019-09-16 17:09:42,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:42,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:42,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:42,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:42,869 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:43,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:43,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:43,214 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:43,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:43,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:43,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:43,244 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-09-16 17:09:43,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:43,272 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2019-09-16 17:09:43,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:43,274 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-16 17:09:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:43,289 INFO L225 Difference]: With dead ends: 151 [2019-09-16 17:09:43,290 INFO L226 Difference]: Without dead ends: 140 [2019-09-16 17:09:43,294 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 17:09:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-16 17:09:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-16 17:09:43,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-16 17:09:43,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2019-09-16 17:09:43,348 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 59 [2019-09-16 17:09:43,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:43,349 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2019-09-16 17:09:43,349 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:43,349 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2019-09-16 17:09:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:09:43,353 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:43,353 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:43,354 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:43,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:43,354 INFO L82 PathProgramCache]: Analyzing trace with hash 813843432, now seen corresponding path program 1 times [2019-09-16 17:09:43,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:43,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:43,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:43,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:43,357 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:43,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:43,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:43,459 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:43,461 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:43,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:43,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:43,462 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand 3 states. [2019-09-16 17:09:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:43,479 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2019-09-16 17:09:43,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:43,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-16 17:09:43,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:43,482 INFO L225 Difference]: With dead ends: 131 [2019-09-16 17:09:43,482 INFO L226 Difference]: Without dead ends: 131 [2019-09-16 17:09:43,483 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 17:09:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-16 17:09:43,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-16 17:09:43,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-16 17:09:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2019-09-16 17:09:43,496 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 60 [2019-09-16 17:09:43,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:43,497 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2019-09-16 17:09:43,497 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:43,497 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2019-09-16 17:09:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:09:43,500 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:43,501 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:43,501 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:43,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:43,501 INFO L82 PathProgramCache]: Analyzing trace with hash 605286682, now seen corresponding path program 1 times [2019-09-16 17:09:43,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:43,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:43,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:43,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:43,504 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:43,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:43,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:43,743 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:43,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:43,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:43,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:43,745 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 7 states. [2019-09-16 17:09:44,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:44,094 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2019-09-16 17:09:44,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:09:44,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-16 17:09:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:44,098 INFO L225 Difference]: With dead ends: 131 [2019-09-16 17:09:44,098 INFO L226 Difference]: Without dead ends: 131 [2019-09-16 17:09:44,099 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 17:09:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-16 17:09:44,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-16 17:09:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-16 17:09:44,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 150 transitions. [2019-09-16 17:09:44,139 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 150 transitions. Word has length 65 [2019-09-16 17:09:44,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:44,142 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 150 transitions. [2019-09-16 17:09:44,142 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 150 transitions. [2019-09-16 17:09:44,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-16 17:09:44,147 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:44,147 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:44,148 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:44,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1239264208, now seen corresponding path program 1 times [2019-09-16 17:09:44,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:44,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:44,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:44,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:44,157 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:44,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:44,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:09:44,423 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:44,424 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:09:44,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:09:44,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:09:44,424 INFO L87 Difference]: Start difference. First operand 131 states and 150 transitions. Second operand 5 states. [2019-09-16 17:09:45,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:45,003 INFO L93 Difference]: Finished difference Result 237 states and 275 transitions. [2019-09-16 17:09:45,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:45,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-09-16 17:09:45,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:45,007 INFO L225 Difference]: With dead ends: 237 [2019-09-16 17:09:45,008 INFO L226 Difference]: Without dead ends: 237 [2019-09-16 17:09:45,008 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:09:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2019-09-16 17:09:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 218. [2019-09-16 17:09:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-09-16 17:09:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 249 transitions. [2019-09-16 17:09:45,041 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 249 transitions. Word has length 78 [2019-09-16 17:09:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:45,042 INFO L475 AbstractCegarLoop]: Abstraction has 218 states and 249 transitions. [2019-09-16 17:09:45,042 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:09:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 249 transitions. [2019-09-16 17:09:45,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-16 17:09:45,048 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:45,049 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:45,052 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:45,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:45,053 INFO L82 PathProgramCache]: Analyzing trace with hash 462053503, now seen corresponding path program 1 times [2019-09-16 17:09:45,053 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:45,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:45,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:45,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:45,059 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:09:45,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:45,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:45,184 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:45,185 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:45,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:45,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:45,186 INFO L87 Difference]: Start difference. First operand 218 states and 249 transitions. Second operand 7 states. [2019-09-16 17:09:45,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:45,952 INFO L93 Difference]: Finished difference Result 236 states and 275 transitions. [2019-09-16 17:09:45,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:09:45,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-09-16 17:09:45,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:45,956 INFO L225 Difference]: With dead ends: 236 [2019-09-16 17:09:45,957 INFO L226 Difference]: Without dead ends: 236 [2019-09-16 17:09:45,957 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:09:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-09-16 17:09:45,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2019-09-16 17:09:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-16 17:09:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2019-09-16 17:09:45,973 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 92 [2019-09-16 17:09:45,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:45,973 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2019-09-16 17:09:45,973 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:45,974 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2019-09-16 17:09:45,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-16 17:09:45,975 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:45,975 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:45,976 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:45,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:45,976 INFO L82 PathProgramCache]: Analyzing trace with hash -440444759, now seen corresponding path program 1 times [2019-09-16 17:09:45,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:45,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:45,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:45,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:45,979 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:46,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:46,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:09:46,055 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:46,057 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:09:46,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:09:46,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:09:46,058 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 6 states. [2019-09-16 17:09:46,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:46,090 INFO L93 Difference]: Finished difference Result 222 states and 251 transitions. [2019-09-16 17:09:46,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:09:46,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-09-16 17:09:46,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:46,094 INFO L225 Difference]: With dead ends: 222 [2019-09-16 17:09:46,094 INFO L226 Difference]: Without dead ends: 222 [2019-09-16 17:09:46,094 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:46,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-09-16 17:09:46,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2019-09-16 17:09:46,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-09-16 17:09:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 251 transitions. [2019-09-16 17:09:46,107 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 251 transitions. Word has length 93 [2019-09-16 17:09:46,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:46,108 INFO L475 AbstractCegarLoop]: Abstraction has 222 states and 251 transitions. [2019-09-16 17:09:46,108 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:09:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 251 transitions. [2019-09-16 17:09:46,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-16 17:09:46,110 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:46,110 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:46,110 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:46,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:46,111 INFO L82 PathProgramCache]: Analyzing trace with hash 261155115, now seen corresponding path program 1 times [2019-09-16 17:09:46,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:46,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:46,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:46,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:46,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:46,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:46,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:09:46,252 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:46,253 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:09:46,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:09:46,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:09:46,254 INFO L87 Difference]: Start difference. First operand 222 states and 251 transitions. Second operand 8 states. [2019-09-16 17:09:46,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:46,290 INFO L93 Difference]: Finished difference Result 229 states and 258 transitions. [2019-09-16 17:09:46,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:09:46,291 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2019-09-16 17:09:46,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:46,293 INFO L225 Difference]: With dead ends: 229 [2019-09-16 17:09:46,293 INFO L226 Difference]: Without dead ends: 229 [2019-09-16 17:09:46,294 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:09:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-16 17:09:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2019-09-16 17:09:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-09-16 17:09:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2019-09-16 17:09:46,313 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 93 [2019-09-16 17:09:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:46,314 INFO L475 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2019-09-16 17:09:46,314 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:09:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2019-09-16 17:09:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-16 17:09:46,317 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:46,317 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:46,317 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:46,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1986636012, now seen corresponding path program 1 times [2019-09-16 17:09:46,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:46,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:46,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:46,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:46,321 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:46,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:46,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:46,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:09:46,418 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:46,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:09:46,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:09:46,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:09:46,419 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand 4 states. [2019-09-16 17:09:46,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:46,650 INFO L93 Difference]: Finished difference Result 463 states and 543 transitions. [2019-09-16 17:09:46,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:09:46,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-16 17:09:46,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:46,654 INFO L225 Difference]: With dead ends: 463 [2019-09-16 17:09:46,655 INFO L226 Difference]: Without dead ends: 463 [2019-09-16 17:09:46,655 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:09:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-09-16 17:09:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 454. [2019-09-16 17:09:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-09-16 17:09:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 526 transitions. [2019-09-16 17:09:46,717 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 526 transitions. Word has length 93 [2019-09-16 17:09:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:46,721 INFO L475 AbstractCegarLoop]: Abstraction has 454 states and 526 transitions. [2019-09-16 17:09:46,721 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:09:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 526 transitions. [2019-09-16 17:09:46,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-16 17:09:46,722 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:46,723 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:46,723 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:46,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:46,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1429929390, now seen corresponding path program 1 times [2019-09-16 17:09:46,726 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:46,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:46,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:46,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:46,731 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:46,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:46,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:46,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:09:46,907 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:46,907 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:09:46,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:09:46,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:09:46,908 INFO L87 Difference]: Start difference. First operand 454 states and 526 transitions. Second operand 9 states. [2019-09-16 17:09:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:47,891 INFO L93 Difference]: Finished difference Result 839 states and 974 transitions. [2019-09-16 17:09:47,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-16 17:09:47,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2019-09-16 17:09:47,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:47,897 INFO L225 Difference]: With dead ends: 839 [2019-09-16 17:09:47,898 INFO L226 Difference]: Without dead ends: 839 [2019-09-16 17:09:47,898 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:09:47,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2019-09-16 17:09:47,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 758. [2019-09-16 17:09:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2019-09-16 17:09:47,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 868 transitions. [2019-09-16 17:09:47,933 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 868 transitions. Word has length 97 [2019-09-16 17:09:47,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:47,934 INFO L475 AbstractCegarLoop]: Abstraction has 758 states and 868 transitions. [2019-09-16 17:09:47,934 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:09:47,934 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 868 transitions. [2019-09-16 17:09:47,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-16 17:09:47,937 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:47,937 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:09:47,937 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:47,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:47,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1557984819, now seen corresponding path program 1 times [2019-09-16 17:09:47,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:47,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:47,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:47,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:47,940 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-16 17:09:48,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:09:48,158 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:09:48,160 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2019-09-16 17:09:48,162 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [116], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [164], [167], [186], [187], [188], [189], [190], [192], [197], [199], [200], [204], [207], [211], [217], [244], [245], [248], [252], [255], [258], [260], [263], [270], [273], [276], [280], [281], [284], [285], [286], [288], [289], [290], [292], [295], [297], [300], [303], [312], [314], [315], [316], [340], [342], [343], [410], [411], [421], [429], [430], [431], [432], [433], [434], [435], [436], [437], [469], [470], [473], [474], [475], [476], [477], [478], [483], [484], [487], [488], [489], [490], [491], [492], [493], [494], [495], [496], [501], [502], [503], [504], [507], [508], [509], [510], [511], [512], [513], [514], [515], [519], [520], [521], [523], [524], [529], [530], [531] [2019-09-16 17:09:48,209 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:09:48,210 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:09:48,320 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:09:48,321 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 71 root evaluator evaluations with a maximum evaluation depth of 0. Performed 71 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-16 17:09:48,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:48,328 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:09:48,428 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:09:48,428 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:09:48,438 INFO L420 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2019-09-16 17:09:48,439 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:09:48,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:09:48,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-16 17:09:48,440 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:48,440 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:48,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:48,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:48,442 INFO L87 Difference]: Start difference. First operand 758 states and 868 transitions. Second operand 2 states. [2019-09-16 17:09:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:48,442 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:09:48,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:48,442 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 157 [2019-09-16 17:09:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:48,443 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:09:48,443 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:48,444 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 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 17:09:48,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:48,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:48,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:48,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:48,445 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2019-09-16 17:09:48,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:48,445 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:48,446 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:48,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:48,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:48,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:48 BoogieIcfgContainer [2019-09-16 17:09:48,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:48,456 INFO L168 Benchmark]: Toolchain (without parser) took 7894.40 ms. Allocated memory was 138.4 MB in the beginning and 338.7 MB in the end (delta: 200.3 MB). Free memory was 84.6 MB in the beginning and 279.3 MB in the end (delta: -194.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:48,457 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:48,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.69 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.4 MB in the beginning and 164.1 MB in the end (delta: -79.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:48,460 INFO L168 Benchmark]: Boogie Preprocessor took 107.98 ms. Allocated memory is still 198.2 MB. Free memory was 163.4 MB in the beginning and 159.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:48,466 INFO L168 Benchmark]: RCFGBuilder took 1315.99 ms. Allocated memory was 198.2 MB in the beginning and 219.7 MB in the end (delta: 21.5 MB). Free memory was 159.7 MB in the beginning and 190.5 MB in the end (delta: -30.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:48,467 INFO L168 Benchmark]: TraceAbstraction took 5779.22 ms. Allocated memory was 219.7 MB in the beginning and 338.7 MB in the end (delta: 119.0 MB). Free memory was 190.5 MB in the beginning and 279.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:48,471 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.69 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.4 MB in the beginning and 164.1 MB in the end (delta: -79.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.98 ms. Allocated memory is still 198.2 MB. Free memory was 163.4 MB in the beginning and 159.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1315.99 ms. Allocated memory was 198.2 MB in the beginning and 219.7 MB in the end (delta: 21.5 MB). Free memory was 159.7 MB in the beginning and 190.5 MB in the end (delta: -30.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5779.22 ms. Allocated memory was 219.7 MB in the beginning and 338.7 MB in the end (delta: 119.0 MB). Free memory was 190.5 MB in the beginning and 279.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 239 locations, 1 error locations. SAFE Result, 5.7s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1539 SDtfs, 1081 SDslu, 3029 SDs, 0 SdLazy, 1732 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=758occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8333333333333334 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 131 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 887 NumberOfCodeBlocks, 887 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 877 ConstructedInterpolants, 0 QuantifiedInterpolants, 142570 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 63/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...