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_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:42,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:42,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:42,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:42,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:42,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:42,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:42,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:42,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:42,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:42,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:42,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:42,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:42,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:42,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:42,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:42,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:42,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:42,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:42,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:42,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:42,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:42,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:42,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:42,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:42,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:42,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:42,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:42,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:42,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:42,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:42,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:42,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:42,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:42,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:42,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:42,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:42,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:42,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:42,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:42,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:42,644 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 13:29:42,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:42,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:42,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:42,660 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:42,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:42,661 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:42,661 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:42,661 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:42,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:42,662 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:42,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:42,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:42,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:42,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:42,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:42,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:42,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:42,664 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:42,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:42,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:42,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:42,665 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:42,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:42,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:42,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:42,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:42,666 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:42,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:42,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:42,666 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:42,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:42,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:42,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:42,714 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:42,714 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:42,715 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-09-20 13:29:42,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eba4c551/00167fc9e88c417c97c880336f949b22/FLAG1d5422d02 [2019-09-20 13:29:43,347 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:43,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-09-20 13:29:43,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eba4c551/00167fc9e88c417c97c880336f949b22/FLAG1d5422d02 [2019-09-20 13:29:43,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eba4c551/00167fc9e88c417c97c880336f949b22 [2019-09-20 13:29:43,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:43,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:43,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:43,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:43,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:43,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:43" (1/1) ... [2019-09-20 13:29:43,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e04810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:43, skipping insertion in model container [2019-09-20 13:29:43,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:43" (1/1) ... [2019-09-20 13:29:43,728 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:43,797 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:44,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:44,305 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:44,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:44,435 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:44,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44 WrapperNode [2019-09-20 13:29:44,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:44,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:44,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:44,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:44,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (1/1) ... [2019-09-20 13:29:44,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:44,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:44,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:44,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:44,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (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 13:29:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:29:44,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:44,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:44,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:29:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:44,599 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:44,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:44,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:45,716 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:45,717 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:45,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:45 BoogieIcfgContainer [2019-09-20 13:29:45,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:45,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:45,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:45,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:45,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:43" (1/3) ... [2019-09-20 13:29:45,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d212d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:45, skipping insertion in model container [2019-09-20 13:29:45,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:44" (2/3) ... [2019-09-20 13:29:45,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d212d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:45, skipping insertion in model container [2019-09-20 13:29:45,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:45" (3/3) ... [2019-09-20 13:29:45,729 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2019-09-20 13:29:45,740 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:45,751 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:45,768 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:45,800 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:45,800 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:45,800 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:45,800 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:45,801 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:45,801 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:45,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:45,802 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:45,831 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-09-20 13:29:45,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:45,848 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:45,850 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 13:29:45,853 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:45,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:45,859 INFO L82 PathProgramCache]: Analyzing trace with hash 135364863, now seen corresponding path program 1 times [2019-09-20 13:29:45,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:45,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:45,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:45,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:45,923 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:46,266 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 13:29:46,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:46,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:46,270 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:46,276 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:46,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:46,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:46,292 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-09-20 13:29:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:46,334 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2019-09-20 13:29:46,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:46,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:46,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:46,350 INFO L225 Difference]: With dead ends: 151 [2019-09-20 13:29:46,350 INFO L226 Difference]: Without dead ends: 140 [2019-09-20 13:29:46,352 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 13:29:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-20 13:29:46,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-20 13:29:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-20 13:29:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2019-09-20 13:29:46,405 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 46 [2019-09-20 13:29:46,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:46,405 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2019-09-20 13:29:46,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:46,406 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2019-09-20 13:29:46,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:46,409 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:46,409 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 13:29:46,410 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:46,410 INFO L82 PathProgramCache]: Analyzing trace with hash 327228860, now seen corresponding path program 1 times [2019-09-20 13:29:46,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:46,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:46,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:46,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:46,413 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:46,514 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 13:29:46,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:46,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:46,515 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:46,516 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:46,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:46,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:46,517 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 3 states. [2019-09-20 13:29:46,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:46,535 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2019-09-20 13:29:46,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:46,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:46,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:46,538 INFO L225 Difference]: With dead ends: 131 [2019-09-20 13:29:46,538 INFO L226 Difference]: Without dead ends: 131 [2019-09-20 13:29:46,539 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 13:29:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-20 13:29:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-20 13:29:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-20 13:29:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2019-09-20 13:29:46,553 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 47 [2019-09-20 13:29:46,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:46,553 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2019-09-20 13:29:46,553 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2019-09-20 13:29:46,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:46,556 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:46,556 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:46,556 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:46,557 INFO L82 PathProgramCache]: Analyzing trace with hash -207054876, now seen corresponding path program 1 times [2019-09-20 13:29:46,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:46,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:46,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:46,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:46,560 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:46,758 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 13:29:46,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:46,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:46,759 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:46,759 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:46,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:46,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:46,760 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 7 states. [2019-09-20 13:29:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:47,125 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2019-09-20 13:29:47,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:47,126 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:29:47,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:47,132 INFO L225 Difference]: With dead ends: 131 [2019-09-20 13:29:47,132 INFO L226 Difference]: Without dead ends: 131 [2019-09-20 13:29:47,133 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:29:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-20 13:29:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-20 13:29:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-20 13:29:47,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2019-09-20 13:29:47,152 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 51 [2019-09-20 13:29:47,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:47,152 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2019-09-20 13:29:47,152 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:47,153 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2019-09-20 13:29:47,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:29:47,156 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:47,156 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, 1, 1, 1] [2019-09-20 13:29:47,156 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:47,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:47,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1468702982, now seen corresponding path program 1 times [2019-09-20 13:29:47,157 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:47,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:47,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,161 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:47,307 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 13:29:47,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:47,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:29:47,310 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:47,310 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:29:47,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:29:47,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:29:47,311 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 5 states. [2019-09-20 13:29:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:47,850 INFO L93 Difference]: Finished difference Result 227 states and 262 transitions. [2019-09-20 13:29:47,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:47,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-20 13:29:47,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:47,857 INFO L225 Difference]: With dead ends: 227 [2019-09-20 13:29:47,858 INFO L226 Difference]: Without dead ends: 227 [2019-09-20 13:29:47,861 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 [2019-09-20 13:29:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-09-20 13:29:47,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 209. [2019-09-20 13:29:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-09-20 13:29:47,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 238 transitions. [2019-09-20 13:29:47,896 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 238 transitions. Word has length 64 [2019-09-20 13:29:47,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:47,896 INFO L475 AbstractCegarLoop]: Abstraction has 209 states and 238 transitions. [2019-09-20 13:29:47,896 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:29:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 238 transitions. [2019-09-20 13:29:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-20 13:29:47,899 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:47,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:47,900 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:47,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:47,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1930431345, now seen corresponding path program 1 times [2019-09-20 13:29:47,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:47,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:47,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:47,904 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:48,018 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 13:29:48,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:48,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:48,019 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:48,020 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:48,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:48,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:48,021 INFO L87 Difference]: Start difference. First operand 209 states and 238 transitions. Second operand 6 states. [2019-09-20 13:29:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:48,230 INFO L93 Difference]: Finished difference Result 379 states and 433 transitions. [2019-09-20 13:29:48,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:48,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-09-20 13:29:48,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:48,235 INFO L225 Difference]: With dead ends: 379 [2019-09-20 13:29:48,235 INFO L226 Difference]: Without dead ends: 379 [2019-09-20 13:29:48,236 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-09-20 13:29:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 373. [2019-09-20 13:29:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-09-20 13:29:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 426 transitions. [2019-09-20 13:29:48,259 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 426 transitions. Word has length 78 [2019-09-20 13:29:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:48,259 INFO L475 AbstractCegarLoop]: Abstraction has 373 states and 426 transitions. [2019-09-20 13:29:48,259 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:48,260 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 426 transitions. [2019-09-20 13:29:48,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-20 13:29:48,263 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:48,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:48,264 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash -613018165, now seen corresponding path program 1 times [2019-09-20 13:29:48,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:48,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:48,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:48,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:48,268 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:48,425 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 13:29:48,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:48,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:48,425 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:48,426 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:48,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:48,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:48,427 INFO L87 Difference]: Start difference. First operand 373 states and 426 transitions. Second operand 7 states. [2019-09-20 13:29:49,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:49,190 INFO L93 Difference]: Finished difference Result 403 states and 473 transitions. [2019-09-20 13:29:49,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:29:49,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-09-20 13:29:49,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:49,196 INFO L225 Difference]: With dead ends: 403 [2019-09-20 13:29:49,198 INFO L226 Difference]: Without dead ends: 403 [2019-09-20 13:29:49,198 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:29:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-09-20 13:29:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 373. [2019-09-20 13:29:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-09-20 13:29:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2019-09-20 13:29:49,235 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 82 [2019-09-20 13:29:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:49,236 INFO L475 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2019-09-20 13:29:49,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:49,236 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2019-09-20 13:29:49,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-20 13:29:49,242 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:49,242 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, 1] [2019-09-20 13:29:49,243 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:49,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:49,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1664141551, now seen corresponding path program 1 times [2019-09-20 13:29:49,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:49,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:49,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,246 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:49,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:49,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:49,353 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:49,354 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:49,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:49,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:49,356 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 6 states. [2019-09-20 13:29:49,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:49,389 INFO L93 Difference]: Finished difference Result 387 states and 439 transitions. [2019-09-20 13:29:49,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:49,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-09-20 13:29:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:49,393 INFO L225 Difference]: With dead ends: 387 [2019-09-20 13:29:49,393 INFO L226 Difference]: Without dead ends: 387 [2019-09-20 13:29:49,393 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 [2019-09-20 13:29:49,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-09-20 13:29:49,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2019-09-20 13:29:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2019-09-20 13:29:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 435 transitions. [2019-09-20 13:29:49,417 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 435 transitions. Word has length 98 [2019-09-20 13:29:49,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:49,418 INFO L475 AbstractCegarLoop]: Abstraction has 383 states and 435 transitions. [2019-09-20 13:29:49,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 435 transitions. [2019-09-20 13:29:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-20 13:29:49,420 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:49,421 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, 1] [2019-09-20 13:29:49,421 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:49,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:49,422 INFO L82 PathProgramCache]: Analyzing trace with hash -770655213, now seen corresponding path program 1 times [2019-09-20 13:29:49,422 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:49,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:49,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,425 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:49,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:49,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:49,558 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:49,559 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:49,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:49,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:49,564 INFO L87 Difference]: Start difference. First operand 383 states and 435 transitions. Second operand 8 states. [2019-09-20 13:29:49,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:49,615 INFO L93 Difference]: Finished difference Result 397 states and 449 transitions. [2019-09-20 13:29:49,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:49,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2019-09-20 13:29:49,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:49,619 INFO L225 Difference]: With dead ends: 397 [2019-09-20 13:29:49,620 INFO L226 Difference]: Without dead ends: 397 [2019-09-20 13:29:49,620 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 [2019-09-20 13:29:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-09-20 13:29:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 391. [2019-09-20 13:29:49,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-09-20 13:29:49,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 443 transitions. [2019-09-20 13:29:49,638 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 443 transitions. Word has length 98 [2019-09-20 13:29:49,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:49,638 INFO L475 AbstractCegarLoop]: Abstraction has 391 states and 443 transitions. [2019-09-20 13:29:49,639 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:49,639 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 443 transitions. [2019-09-20 13:29:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-20 13:29:49,643 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:49,644 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, 1] [2019-09-20 13:29:49,644 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:49,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:49,647 INFO L82 PathProgramCache]: Analyzing trace with hash -778414572, now seen corresponding path program 1 times [2019-09-20 13:29:49,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:49,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:49,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:49,650 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:29:49,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:49,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:29:49,740 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:49,741 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:29:49,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:29:49,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:49,742 INFO L87 Difference]: Start difference. First operand 391 states and 443 transitions. Second operand 4 states. [2019-09-20 13:29:49,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:49,959 INFO L93 Difference]: Finished difference Result 786 states and 933 transitions. [2019-09-20 13:29:49,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:29:49,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-09-20 13:29:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:49,964 INFO L225 Difference]: With dead ends: 786 [2019-09-20 13:29:49,964 INFO L226 Difference]: Without dead ends: 786 [2019-09-20 13:29:49,965 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-09-20 13:29:49,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 771. [2019-09-20 13:29:49,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2019-09-20 13:29:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 901 transitions. [2019-09-20 13:29:49,995 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 901 transitions. Word has length 98 [2019-09-20 13:29:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:49,996 INFO L475 AbstractCegarLoop]: Abstraction has 771 states and 901 transitions. [2019-09-20 13:29:49,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:29:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 901 transitions. [2019-09-20 13:29:49,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-20 13:29:49,998 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:49,998 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, 1, 1, 1, 1, 1] [2019-09-20 13:29:49,999 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:49,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:49,999 INFO L82 PathProgramCache]: Analyzing trace with hash 469491758, now seen corresponding path program 1 times [2019-09-20 13:29:49,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:50,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:50,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:50,002 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:29:50,150 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:50,150 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:50,151 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2019-09-20 13:29:50,153 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [172], [187], [188], [200], [202], [207], [210], [211], [213], [218], [220], [221], [224], [225], [231], [235], [275], [278], [280], [283], [293], [296], [300], [301], [304], [305], [306], [329], [331], [332], [399], [400], [407], [409], [410], [414], [416], [419], [421], [424], [437], [438], [439], [440], [441], [442], [443], [444], [445], [485], [486], [487], [488], [489], [490], [491], [495], [496], [497], [498], [499], [500], [503], [504], [505], [511], [512], [513], [514], [521], [523], [524], [529], [530], [531], [533], [534], [535], [536], [537] [2019-09-20 13:29:50,194 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:50,194 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:50,267 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:50,269 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 13:29:50,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:50,273 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:50,316 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:29:50,316 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:50,319 INFO L420 sIntCurrentIteration]: We unified 101 AI predicates to 101 [2019-09-20 13:29:50,320 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:50,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:50,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:29:50,321 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:50,321 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:50,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:50,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:50,322 INFO L87 Difference]: Start difference. First operand 771 states and 901 transitions. Second operand 2 states. [2019-09-20 13:29:50,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:50,322 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:29:50,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:50,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 102 [2019-09-20 13:29:50,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:50,323 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:29:50,323 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:50,324 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 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 13:29:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:50,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:50,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:50,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:50,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2019-09-20 13:29:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:50,325 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:50,325 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:50,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:50,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:50 BoogieIcfgContainer [2019-09-20 13:29:50,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:50,333 INFO L168 Benchmark]: Toolchain (without parser) took 6622.65 ms. Allocated memory was 140.0 MB in the beginning and 313.0 MB in the end (delta: 173.0 MB). Free memory was 86.5 MB in the beginning and 151.9 MB in the end (delta: -65.4 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,334 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.29 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 86.3 MB in the beginning and 162.3 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,335 INFO L168 Benchmark]: Boogie Preprocessor took 84.56 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 158.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,337 INFO L168 Benchmark]: RCFGBuilder took 1197.93 ms. Allocated memory was 199.2 MB in the beginning and 224.4 MB in the end (delta: 25.2 MB). Free memory was 158.1 MB in the beginning and 186.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,338 INFO L168 Benchmark]: TraceAbstraction took 4610.41 ms. Allocated memory was 224.4 MB in the beginning and 313.0 MB in the end (delta: 88.6 MB). Free memory was 186.7 MB in the beginning and 151.9 MB in the end (delta: 34.8 MB). Peak memory consumption was 123.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:50,342 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 725.29 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 86.3 MB in the beginning and 162.3 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.56 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 158.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1197.93 ms. Allocated memory was 199.2 MB in the beginning and 224.4 MB in the end (delta: 25.2 MB). Free memory was 158.1 MB in the beginning and 186.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4610.41 ms. Allocated memory was 224.4 MB in the beginning and 313.0 MB in the end (delta: 88.6 MB). Free memory was 186.7 MB in the beginning and 151.9 MB in the end (delta: 34.8 MB). Peak memory consumption was 123.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 968]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 242 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1480 SDtfs, 815 SDslu, 3088 SDs, 0 SdLazy, 1060 SolverSat, 235 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=771occurred 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, 1.0693069306930694 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 764 NumberOfCodeBlocks, 764 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 754 ConstructedInterpolants, 0 QuantifiedInterpolants, 100151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...