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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:56,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:56,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:56,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:56,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:56,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:56,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:56,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:56,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:56,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:56,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:56,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:56,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:56,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:56,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:56,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:56,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:56,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:56,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:56,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:56,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:56,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:56,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:56,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:56,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:56,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:56,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:56,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:56,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:56,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:56,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:56,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:56,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:56,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:56,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:56,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:56,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:56,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:56,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:56,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:56,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:56,704 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 17:07:56,719 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:56,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:56,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:56,720 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:56,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:56,723 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:56,724 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:56,724 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:56,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:56,724 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:56,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:56,726 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:56,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:56,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:56,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:56,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:56,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:56,727 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:56,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:56,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:56,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:56,728 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:56,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:56,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:56,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:56,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:56,730 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:56,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:56,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:56,730 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:56,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:56,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:56,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:56,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:56,797 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:56,798 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-09-16 17:07:56,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4ee733f/fed175c90b694dde85c4f64d1d945b0d/FLAGb5e3d310b [2019-09-16 17:07:57,395 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:57,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-09-16 17:07:57,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4ee733f/fed175c90b694dde85c4f64d1d945b0d/FLAGb5e3d310b [2019-09-16 17:07:57,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4ee733f/fed175c90b694dde85c4f64d1d945b0d [2019-09-16 17:07:57,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:57,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:57,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:57,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:57,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:57,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750b091d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57, skipping insertion in model container [2019-09-16 17:07:57,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,729 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:57,771 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:58,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:58,214 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:58,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:58,356 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:58,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58 WrapperNode [2019-09-16 17:07:58,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:58,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:58,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:58,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:58,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (1/1) ... [2019-09-16 17:07:58,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (1/1) ... [2019-09-16 17:07:58,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (1/1) ... [2019-09-16 17:07:58,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (1/1) ... [2019-09-16 17:07:58,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (1/1) ... [2019-09-16 17:07:58,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (1/1) ... [2019-09-16 17:07:58,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (1/1) ... [2019-09-16 17:07:58,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:58,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:58,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:58,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:58,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (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 17:07:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:07:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:07:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:07:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:07:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:07:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:07:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:07:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:07:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:07:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:59,573 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:59,574 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:59,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:59 BoogieIcfgContainer [2019-09-16 17:07:59,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:59,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:59,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:59,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:59,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:57" (1/3) ... [2019-09-16 17:07:59,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2452b944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:59, skipping insertion in model container [2019-09-16 17:07:59,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:58" (2/3) ... [2019-09-16 17:07:59,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2452b944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:59, skipping insertion in model container [2019-09-16 17:07:59,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:59" (3/3) ... [2019-09-16 17:07:59,585 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2019-09-16 17:07:59,595 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:59,605 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:59,621 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:59,650 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:59,650 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:59,650 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:59,651 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:59,651 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:59,651 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:59,652 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:59,652 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:59,671 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2019-09-16 17:07:59,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:59,684 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,685 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:59,687 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,693 INFO L82 PathProgramCache]: Analyzing trace with hash 252979836, now seen corresponding path program 1 times [2019-09-16 17:07:59,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,754 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:00,061 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,068 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:00,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:00,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:00,086 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 2 states. [2019-09-16 17:08:00,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:00,139 INFO L93 Difference]: Finished difference Result 155 states and 180 transitions. [2019-09-16 17:08:00,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:00,140 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:08:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:00,153 INFO L225 Difference]: With dead ends: 155 [2019-09-16 17:08:00,153 INFO L226 Difference]: Without dead ends: 144 [2019-09-16 17:08:00,155 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 17:08:00,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-16 17:08:00,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-16 17:08:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-16 17:08:00,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-09-16 17:08:00,209 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 46 [2019-09-16 17:08:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,209 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-09-16 17:08:00,209 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:00,209 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-09-16 17:08:00,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:08:00,214 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:00,214 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:00,215 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:00,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:00,215 INFO L82 PathProgramCache]: Analyzing trace with hash -810106616, now seen corresponding path program 1 times [2019-09-16 17:08:00,215 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:00,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:00,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,218 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:00,332 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,334 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:00,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:00,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:00,335 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 3 states. [2019-09-16 17:08:00,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:00,365 INFO L93 Difference]: Finished difference Result 135 states and 156 transitions. [2019-09-16 17:08:00,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:00,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:08:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:00,368 INFO L225 Difference]: With dead ends: 135 [2019-09-16 17:08:00,368 INFO L226 Difference]: Without dead ends: 135 [2019-09-16 17:08:00,371 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 17:08:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-09-16 17:08:00,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-09-16 17:08:00,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-09-16 17:08:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 156 transitions. [2019-09-16 17:08:00,387 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 156 transitions. Word has length 47 [2019-09-16 17:08:00,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,388 INFO L475 AbstractCegarLoop]: Abstraction has 135 states and 156 transitions. [2019-09-16 17:08:00,388 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 156 transitions. [2019-09-16 17:08:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:00,390 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:00,390 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:00,391 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:00,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2111665897, now seen corresponding path program 1 times [2019-09-16 17:08:00,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:00,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:00,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,394 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:00,505 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:00,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:00,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:00,506 INFO L87 Difference]: Start difference. First operand 135 states and 156 transitions. Second operand 7 states. [2019-09-16 17:08:00,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:00,845 INFO L93 Difference]: Finished difference Result 135 states and 155 transitions. [2019-09-16 17:08:00,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:00,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:08:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:00,848 INFO L225 Difference]: With dead ends: 135 [2019-09-16 17:08:00,848 INFO L226 Difference]: Without dead ends: 135 [2019-09-16 17:08:00,849 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 17:08:00,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-09-16 17:08:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-09-16 17:08:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-09-16 17:08:00,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2019-09-16 17:08:00,867 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 52 [2019-09-16 17:08:00,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,868 INFO L475 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2019-09-16 17:08:00,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:00,869 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2019-09-16 17:08:00,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:08:00,875 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:00,875 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] [2019-09-16 17:08:00,878 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:00,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2095161910, now seen corresponding path program 1 times [2019-09-16 17:08:00,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:00,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:00,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,882 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:01,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:01,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:08:01,053 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:01,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:08:01,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:08:01,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:08:01,055 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand 5 states. [2019-09-16 17:08:01,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:01,575 INFO L93 Difference]: Finished difference Result 236 states and 272 transitions. [2019-09-16 17:08:01,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:01,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-16 17:08:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:01,578 INFO L225 Difference]: With dead ends: 236 [2019-09-16 17:08:01,579 INFO L226 Difference]: Without dead ends: 236 [2019-09-16 17:08:01,579 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 17:08:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-09-16 17:08:01,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2019-09-16 17:08:01,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-16 17:08:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2019-09-16 17:08:01,607 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 65 [2019-09-16 17:08:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:01,607 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2019-09-16 17:08:01,608 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:08:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2019-09-16 17:08:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-16 17:08:01,613 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:01,614 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] [2019-09-16 17:08:01,614 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:01,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:01,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1983258682, now seen corresponding path program 1 times [2019-09-16 17:08:01,615 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:01,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:01,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,618 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:01,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:01,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:01,753 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:01,754 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:01,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:01,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:01,755 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 6 states. [2019-09-16 17:08:01,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:01,930 INFO L93 Difference]: Finished difference Result 395 states and 449 transitions. [2019-09-16 17:08:01,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:01,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-16 17:08:01,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:01,935 INFO L225 Difference]: With dead ends: 395 [2019-09-16 17:08:01,935 INFO L226 Difference]: Without dead ends: 395 [2019-09-16 17:08:01,936 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 [2019-09-16 17:08:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-09-16 17:08:01,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 389. [2019-09-16 17:08:01,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-09-16 17:08:01,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 442 transitions. [2019-09-16 17:08:01,976 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 442 transitions. Word has length 79 [2019-09-16 17:08:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:01,976 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 442 transitions. [2019-09-16 17:08:01,977 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 442 transitions. [2019-09-16 17:08:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-16 17:08:01,982 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:01,982 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, 1] [2019-09-16 17:08:01,982 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:01,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:01,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2086163970, now seen corresponding path program 1 times [2019-09-16 17:08:01,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:01,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:01,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,988 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:02,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:02,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:02,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:02,114 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:02,115 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:02,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:02,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:02,116 INFO L87 Difference]: Start difference. First operand 389 states and 442 transitions. Second operand 7 states. [2019-09-16 17:08:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,801 INFO L93 Difference]: Finished difference Result 421 states and 493 transitions. [2019-09-16 17:08:02,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:08:02,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-09-16 17:08:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,805 INFO L225 Difference]: With dead ends: 421 [2019-09-16 17:08:02,805 INFO L226 Difference]: Without dead ends: 421 [2019-09-16 17:08:02,806 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 [2019-09-16 17:08:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-09-16 17:08:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 389. [2019-09-16 17:08:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-09-16 17:08:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2019-09-16 17:08:02,825 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 83 [2019-09-16 17:08:02,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:02,825 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2019-09-16 17:08:02,825 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2019-09-16 17:08:02,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-16 17:08:02,827 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:02,828 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] [2019-09-16 17:08:02,828 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:02,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:02,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1672866455, now seen corresponding path program 1 times [2019-09-16 17:08:02,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:02,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:02,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,831 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:02,900 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 17:08:02,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:02,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:02,900 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:02,901 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:02,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:02,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:02,902 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 6 states. [2019-09-16 17:08:02,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,928 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2019-09-16 17:08:02,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:02,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2019-09-16 17:08:02,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,931 INFO L225 Difference]: With dead ends: 403 [2019-09-16 17:08:02,931 INFO L226 Difference]: Without dead ends: 403 [2019-09-16 17:08:02,932 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 17:08:02,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-09-16 17:08:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 399. [2019-09-16 17:08:02,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-09-16 17:08:02,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 451 transitions. [2019-09-16 17:08:02,950 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 451 transitions. Word has length 99 [2019-09-16 17:08:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:02,950 INFO L475 AbstractCegarLoop]: Abstraction has 399 states and 451 transitions. [2019-09-16 17:08:02,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 451 transitions. [2019-09-16 17:08:02,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-16 17:08:02,953 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:02,953 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] [2019-09-16 17:08:02,953 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:02,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:02,954 INFO L82 PathProgramCache]: Analyzing trace with hash -779380117, now seen corresponding path program 1 times [2019-09-16 17:08:02,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:02,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:02,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,957 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:03,064 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 17:08:03,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:03,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:08:03,065 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:03,066 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:08:03,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:08:03,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:03,067 INFO L87 Difference]: Start difference. First operand 399 states and 451 transitions. Second operand 8 states. [2019-09-16 17:08:03,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:03,096 INFO L93 Difference]: Finished difference Result 413 states and 465 transitions. [2019-09-16 17:08:03,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:03,097 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2019-09-16 17:08:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:03,099 INFO L225 Difference]: With dead ends: 413 [2019-09-16 17:08:03,099 INFO L226 Difference]: Without dead ends: 413 [2019-09-16 17:08:03,100 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 17:08:03,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-09-16 17:08:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 407. [2019-09-16 17:08:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-09-16 17:08:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 459 transitions. [2019-09-16 17:08:03,114 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 459 transitions. Word has length 99 [2019-09-16 17:08:03,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,115 INFO L475 AbstractCegarLoop]: Abstraction has 407 states and 459 transitions. [2019-09-16 17:08:03,115 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:08:03,115 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 459 transitions. [2019-09-16 17:08:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-16 17:08:03,117 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:03,117 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] [2019-09-16 17:08:03,117 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:03,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,118 INFO L82 PathProgramCache]: Analyzing trace with hash -787139476, now seen corresponding path program 1 times [2019-09-16 17:08:03,118 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:03,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:03,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,120 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:03,227 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 17:08:03,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:03,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:08:03,228 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:03,228 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:08:03,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:08:03,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:03,229 INFO L87 Difference]: Start difference. First operand 407 states and 459 transitions. Second operand 4 states. [2019-09-16 17:08:03,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:03,485 INFO L93 Difference]: Finished difference Result 826 states and 973 transitions. [2019-09-16 17:08:03,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:08:03,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2019-09-16 17:08:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:03,490 INFO L225 Difference]: With dead ends: 826 [2019-09-16 17:08:03,490 INFO L226 Difference]: Without dead ends: 826 [2019-09-16 17:08:03,491 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 [2019-09-16 17:08:03,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2019-09-16 17:08:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 811. [2019-09-16 17:08:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-09-16 17:08:03,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 941 transitions. [2019-09-16 17:08:03,521 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 941 transitions. Word has length 99 [2019-09-16 17:08:03,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,521 INFO L475 AbstractCegarLoop]: Abstraction has 811 states and 941 transitions. [2019-09-16 17:08:03,522 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:08:03,522 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 941 transitions. [2019-09-16 17:08:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-16 17:08:03,524 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:03,524 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, 1] [2019-09-16 17:08:03,524 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:03,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1176915630, now seen corresponding path program 1 times [2019-09-16 17:08:03,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:03,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:03,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,527 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:03,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:08:03,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:03,650 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:03,650 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2019-09-16 17:08:03,653 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [175], [178], [188], [189], [201], [203], [208], [211], [214], [216], [221], [223], [224], [225], [226], [232], [236], [278], [281], [283], [286], [296], [299], [303], [304], [307], [308], [309], [332], [334], [335], [402], [403], [408], [410], [413], [417], [419], [422], [424], [427], [440], [441], [442], [443], [444], [445], [446], [447], [448], [488], [489], [490], [491], [492], [493], [496], [500], [501], [502], [503], [504], [505], [508], [509], [510], [516], [517], [518], [519], [526], [528], [529], [534], [535], [536], [538], [539], [540], [541], [542] [2019-09-16 17:08:03,701 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:03,701 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:03,763 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:03,765 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:08:03,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,769 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:03,812 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:03,812 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:03,815 INFO L420 sIntCurrentIteration]: We unified 102 AI predicates to 102 [2019-09-16 17:08:03,815 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:03,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:03,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-16 17:08:03,817 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:03,817 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:03,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:03,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:03,818 INFO L87 Difference]: Start difference. First operand 811 states and 941 transitions. Second operand 2 states. [2019-09-16 17:08:03,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:03,818 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:03,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:03,818 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 103 [2019-09-16 17:08:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:03,819 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:03,819 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:03,819 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 17:08:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:03,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:03,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:03,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:03,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2019-09-16 17:08:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,820 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:03,820 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:03,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:03,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:03 BoogieIcfgContainer [2019-09-16 17:08:03,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:03,830 INFO L168 Benchmark]: Toolchain (without parser) took 6115.14 ms. Allocated memory was 131.6 MB in the beginning and 335.0 MB in the end (delta: 203.4 MB). Free memory was 86.9 MB in the beginning and 184.1 MB in the end (delta: -97.2 MB). Peak memory consumption was 106.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,831 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.92 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 160.3 MB in the end (delta: -73.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,834 INFO L168 Benchmark]: Boogie Preprocessor took 85.35 ms. Allocated memory is still 198.7 MB. Free memory was 160.3 MB in the beginning and 155.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,837 INFO L168 Benchmark]: RCFGBuilder took 1132.62 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 155.8 MB in the beginning and 186.5 MB in the end (delta: -30.6 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,841 INFO L168 Benchmark]: TraceAbstraction took 4251.36 ms. Allocated memory was 220.2 MB in the beginning and 335.0 MB in the end (delta: 114.8 MB). Free memory was 186.5 MB in the beginning and 184.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,846 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 641.92 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 160.3 MB in the end (delta: -73.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.35 ms. Allocated memory is still 198.7 MB. Free memory was 160.3 MB in the beginning and 155.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1132.62 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 155.8 MB in the beginning and 186.5 MB in the end (delta: -30.6 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4251.36 ms. Allocated memory was 220.2 MB in the beginning and 335.0 MB in the end (delta: 114.8 MB). Free memory was 186.5 MB in the beginning and 184.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 117.2 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 42 procedures, 246 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1525 SDtfs, 917 SDslu, 3175 SDs, 0 SdLazy, 1107 SolverSat, 296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=811occurred 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, 1.0686274509803921 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 772 NumberOfCodeBlocks, 772 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 762 ConstructedInterpolants, 0 QuantifiedInterpolants, 103070 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...