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_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:31,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:31,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:31,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:31,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:31,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:31,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:31,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:31,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:31,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:31,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:31,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:31,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:31,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:31,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:31,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:31,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:31,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:31,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:31,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:31,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:31,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:31,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:31,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:31,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:31,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:31,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:31,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:31,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:31,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:31,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:31,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:31,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:31,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:31,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:31,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:31,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:31,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:31,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:31,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:31,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:31,729 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 17:08:31,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:31,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:31,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:31,745 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:31,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:31,746 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:31,746 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:31,747 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:31,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:31,747 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:31,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:31,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:31,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:31,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:31,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:31,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:31,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:31,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:31,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:31,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:31,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:31,750 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:31,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:31,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:31,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:31,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:31,751 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:31,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:31,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:31,751 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:31,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:31,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:31,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:31,798 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:31,798 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:31,799 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-09-16 17:08:31,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2aa7193/03b06be0857d471791c2cc8a726be415/FLAGf45f60176 [2019-09-16 17:08:32,407 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:32,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-09-16 17:08:32,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2aa7193/03b06be0857d471791c2cc8a726be415/FLAGf45f60176 [2019-09-16 17:08:32,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2aa7193/03b06be0857d471791c2cc8a726be415 [2019-09-16 17:08:32,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:32,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:32,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:32,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:32,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:32,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:32" (1/1) ... [2019-09-16 17:08:32,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bbea19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:32, skipping insertion in model container [2019-09-16 17:08:32,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:32" (1/1) ... [2019-09-16 17:08:32,690 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:32,755 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:33,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:33,340 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:33,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:33,450 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:33,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33 WrapperNode [2019-09-16 17:08:33,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:33,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:33,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:33,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:33,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (1/1) ... [2019-09-16 17:08:33,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (1/1) ... [2019-09-16 17:08:33,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (1/1) ... [2019-09-16 17:08:33,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (1/1) ... [2019-09-16 17:08:33,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (1/1) ... [2019-09-16 17:08:33,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (1/1) ... [2019-09-16 17:08:33,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (1/1) ... [2019-09-16 17:08:33,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:33,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:33,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:33,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:33,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (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 17:08:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:08:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-16 17:08:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:08:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:08:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:08:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:08:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:08:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-16 17:08:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:34,825 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:34,825 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:34,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:34 BoogieIcfgContainer [2019-09-16 17:08:34,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:34,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:34,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:34,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:34,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:32" (1/3) ... [2019-09-16 17:08:34,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bec7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:34, skipping insertion in model container [2019-09-16 17:08:34,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:33" (2/3) ... [2019-09-16 17:08:34,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bec7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:34, skipping insertion in model container [2019-09-16 17:08:34,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:34" (3/3) ... [2019-09-16 17:08:34,836 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2019-09-16 17:08:34,846 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:34,855 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:34,870 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:34,894 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:34,895 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:34,895 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:34,895 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:34,895 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:34,895 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:34,896 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:34,896 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-09-16 17:08:34,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:34,928 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:34,929 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:34,932 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:34,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:34,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1134611440, now seen corresponding path program 1 times [2019-09-16 17:08:34,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:34,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:34,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:34,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:34,998 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:35,313 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 17:08:35,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:35,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:35,317 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:35,324 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:35,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:35,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:35,354 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-09-16 17:08:35,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:35,384 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2019-09-16 17:08:35,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:35,386 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:35,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:35,403 INFO L225 Difference]: With dead ends: 165 [2019-09-16 17:08:35,403 INFO L226 Difference]: Without dead ends: 154 [2019-09-16 17:08:35,405 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 17:08:35,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-09-16 17:08:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-09-16 17:08:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-09-16 17:08:35,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2019-09-16 17:08:35,458 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 51 [2019-09-16 17:08:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:35,458 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2019-09-16 17:08:35,459 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2019-09-16 17:08:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:35,467 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:35,467 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 17:08:35,467 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:35,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:35,468 INFO L82 PathProgramCache]: Analyzing trace with hash -179918531, now seen corresponding path program 1 times [2019-09-16 17:08:35,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:35,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:35,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:35,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:35,473 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:35,597 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 17:08:35,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:35,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:35,598 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:35,600 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:35,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:35,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:35,602 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand 3 states. [2019-09-16 17:08:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:35,634 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2019-09-16 17:08:35,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:35,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:35,641 INFO L225 Difference]: With dead ends: 145 [2019-09-16 17:08:35,642 INFO L226 Difference]: Without dead ends: 145 [2019-09-16 17:08:35,643 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 17:08:35,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-09-16 17:08:35,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-09-16 17:08:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-16 17:08:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2019-09-16 17:08:35,665 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 52 [2019-09-16 17:08:35,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:35,665 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2019-09-16 17:08:35,665 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:35,666 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2019-09-16 17:08:35,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:35,668 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:35,668 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] [2019-09-16 17:08:35,669 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:35,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:35,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1227863388, now seen corresponding path program 1 times [2019-09-16 17:08:35,669 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:35,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:35,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:35,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:35,672 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:35,826 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 17:08:35,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:35,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:35,826 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:35,827 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:35,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:35,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:35,828 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand 7 states. [2019-09-16 17:08:36,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:36,451 INFO L93 Difference]: Finished difference Result 313 states and 380 transitions. [2019-09-16 17:08:36,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:36,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-16 17:08:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:36,463 INFO L225 Difference]: With dead ends: 313 [2019-09-16 17:08:36,464 INFO L226 Difference]: Without dead ends: 313 [2019-09-16 17:08:36,464 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 17:08:36,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-09-16 17:08:36,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 305. [2019-09-16 17:08:36,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-09-16 17:08:36,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 374 transitions. [2019-09-16 17:08:36,495 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 374 transitions. Word has length 56 [2019-09-16 17:08:36,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:36,495 INFO L475 AbstractCegarLoop]: Abstraction has 305 states and 374 transitions. [2019-09-16 17:08:36,495 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:36,496 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 374 transitions. [2019-09-16 17:08:36,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-16 17:08:36,499 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:36,499 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] [2019-09-16 17:08:36,500 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:36,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:36,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1601957820, now seen corresponding path program 1 times [2019-09-16 17:08:36,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:36,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:36,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:36,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:36,503 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:36,680 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 17:08:36,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:36,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:36,681 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:36,683 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:36,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:36,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:36,684 INFO L87 Difference]: Start difference. First operand 305 states and 374 transitions. Second operand 6 states. [2019-09-16 17:08:36,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:36,932 INFO L93 Difference]: Finished difference Result 564 states and 694 transitions. [2019-09-16 17:08:36,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:36,933 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-16 17:08:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:36,940 INFO L225 Difference]: With dead ends: 564 [2019-09-16 17:08:36,940 INFO L226 Difference]: Without dead ends: 564 [2019-09-16 17:08:36,941 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 17:08:36,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-09-16 17:08:37,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2019-09-16 17:08:37,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-09-16 17:08:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 688 transitions. [2019-09-16 17:08:37,022 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 688 transitions. Word has length 62 [2019-09-16 17:08:37,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:37,024 INFO L475 AbstractCegarLoop]: Abstraction has 558 states and 688 transitions. [2019-09-16 17:08:37,024 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 688 transitions. [2019-09-16 17:08:37,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-16 17:08:37,032 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:37,032 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] [2019-09-16 17:08:37,033 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:37,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:37,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1204720808, now seen corresponding path program 1 times [2019-09-16 17:08:37,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:37,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:37,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:37,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:37,036 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:37,223 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 17:08:37,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:37,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:37,224 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:37,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:37,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:37,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:37,228 INFO L87 Difference]: Start difference. First operand 558 states and 688 transitions. Second operand 7 states. [2019-09-16 17:08:38,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:38,012 INFO L93 Difference]: Finished difference Result 907 states and 1154 transitions. [2019-09-16 17:08:38,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:08:38,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-16 17:08:38,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:38,020 INFO L225 Difference]: With dead ends: 907 [2019-09-16 17:08:38,020 INFO L226 Difference]: Without dead ends: 907 [2019-09-16 17:08:38,020 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:08:38,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2019-09-16 17:08:38,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 811. [2019-09-16 17:08:38,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-09-16 17:08:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 991 transitions. [2019-09-16 17:08:38,068 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 991 transitions. Word has length 66 [2019-09-16 17:08:38,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:38,068 INFO L475 AbstractCegarLoop]: Abstraction has 811 states and 991 transitions. [2019-09-16 17:08:38,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 991 transitions. [2019-09-16 17:08:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-16 17:08:38,071 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:38,071 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:38,071 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:38,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:38,072 INFO L82 PathProgramCache]: Analyzing trace with hash -763723638, now seen corresponding path program 1 times [2019-09-16 17:08:38,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:38,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:38,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,074 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:38,146 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 17:08:38,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:38,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:38,146 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:38,147 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:38,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:38,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:38,148 INFO L87 Difference]: Start difference. First operand 811 states and 991 transitions. Second operand 6 states. [2019-09-16 17:08:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:38,182 INFO L93 Difference]: Finished difference Result 831 states and 1011 transitions. [2019-09-16 17:08:38,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:38,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-09-16 17:08:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:38,188 INFO L225 Difference]: With dead ends: 831 [2019-09-16 17:08:38,188 INFO L226 Difference]: Without dead ends: 831 [2019-09-16 17:08:38,189 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 17:08:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-09-16 17:08:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 831. [2019-09-16 17:08:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2019-09-16 17:08:38,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1011 transitions. [2019-09-16 17:08:38,224 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1011 transitions. Word has length 93 [2019-09-16 17:08:38,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:38,224 INFO L475 AbstractCegarLoop]: Abstraction has 831 states and 1011 transitions. [2019-09-16 17:08:38,225 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1011 transitions. [2019-09-16 17:08:38,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-16 17:08:38,227 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:38,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:38,227 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:38,228 INFO L82 PathProgramCache]: Analyzing trace with hash -836110196, now seen corresponding path program 1 times [2019-09-16 17:08:38,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:38,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:38,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,230 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:38,314 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 17:08:38,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:38,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:08:38,314 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:38,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:08:38,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:08:38,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:38,316 INFO L87 Difference]: Start difference. First operand 831 states and 1011 transitions. Second operand 8 states. [2019-09-16 17:08:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:38,347 INFO L93 Difference]: Finished difference Result 859 states and 1039 transitions. [2019-09-16 17:08:38,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:38,348 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2019-09-16 17:08:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:38,353 INFO L225 Difference]: With dead ends: 859 [2019-09-16 17:08:38,353 INFO L226 Difference]: Without dead ends: 859 [2019-09-16 17:08:38,354 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 17:08:38,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2019-09-16 17:08:38,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 847. [2019-09-16 17:08:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2019-09-16 17:08:38,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1027 transitions. [2019-09-16 17:08:38,388 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1027 transitions. Word has length 93 [2019-09-16 17:08:38,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:38,388 INFO L475 AbstractCegarLoop]: Abstraction has 847 states and 1027 transitions. [2019-09-16 17:08:38,389 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:08:38,389 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1027 transitions. [2019-09-16 17:08:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-16 17:08:38,391 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:38,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:38,391 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:38,392 INFO L82 PathProgramCache]: Analyzing trace with hash -506344435, now seen corresponding path program 1 times [2019-09-16 17:08:38,392 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:38,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:38,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,394 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:38,503 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 17:08:38,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:38,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:08:38,504 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:38,504 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:08:38,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:08:38,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:38,505 INFO L87 Difference]: Start difference. First operand 847 states and 1027 transitions. Second operand 4 states. [2019-09-16 17:08:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:38,761 INFO L93 Difference]: Finished difference Result 1914 states and 2415 transitions. [2019-09-16 17:08:38,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:08:38,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-16 17:08:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:38,772 INFO L225 Difference]: With dead ends: 1914 [2019-09-16 17:08:38,773 INFO L226 Difference]: Without dead ends: 1914 [2019-09-16 17:08:38,773 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 17:08:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2019-09-16 17:08:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1883. [2019-09-16 17:08:38,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1883 states. [2019-09-16 17:08:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 2343 transitions. [2019-09-16 17:08:38,857 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 2343 transitions. Word has length 93 [2019-09-16 17:08:38,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:38,858 INFO L475 AbstractCegarLoop]: Abstraction has 1883 states and 2343 transitions. [2019-09-16 17:08:38,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:08:38,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 2343 transitions. [2019-09-16 17:08:38,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-16 17:08:38,862 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:38,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:38,863 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:38,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:38,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1600364013, now seen corresponding path program 1 times [2019-09-16 17:08:38,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:38,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:38,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:38,866 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:38,946 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 17:08:38,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:38,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:38,947 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:38,947 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:38,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:38,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:38,948 INFO L87 Difference]: Start difference. First operand 1883 states and 2343 transitions. Second operand 3 states. [2019-09-16 17:08:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:39,004 INFO L93 Difference]: Finished difference Result 3055 states and 3911 transitions. [2019-09-16 17:08:39,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:39,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2019-09-16 17:08:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:39,027 INFO L225 Difference]: With dead ends: 3055 [2019-09-16 17:08:39,027 INFO L226 Difference]: Without dead ends: 3055 [2019-09-16 17:08:39,028 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 17:08:39,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2019-09-16 17:08:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2895. [2019-09-16 17:08:39,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2895 states. [2019-09-16 17:08:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3721 transitions. [2019-09-16 17:08:39,187 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3721 transitions. Word has length 97 [2019-09-16 17:08:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:39,189 INFO L475 AbstractCegarLoop]: Abstraction has 2895 states and 3721 transitions. [2019-09-16 17:08:39,189 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3721 transitions. [2019-09-16 17:08:39,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-09-16 17:08:39,207 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:39,207 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:39,207 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:39,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:39,208 INFO L82 PathProgramCache]: Analyzing trace with hash -882849354, now seen corresponding path program 1 times [2019-09-16 17:08:39,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:39,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:39,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:39,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:39,211 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:39,530 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-16 17:08:39,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:39,531 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:39,532 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2019-09-16 17:08:39,536 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [103], [119], [123], [124], [125], [140], [143], [145], [154], [158], [162], [165], [168], [170], [173], [176], [178], [181], [199], [201], [204], [206], [209], [212], [215], [223], [233], [234], [235], [236], [239], [241], [246], [248], [249], [250], [251], [254], [257], [261], [267], [296], [300], [301], [304], [306], [309], [319], [322], [326], [327], [330], [345], [348], [349], [350], [351], [445], [446], [451], [453], [456], [464], [465], [466], [467], [468], [469], [470], [471], [472], [514], [515], [516], [517], [518], [519], [522], [523], [526], [527], [528], [529], [530], [532], [533], [534], [535], [536], [537], [538], [539], [544], [545], [546], [547], [558], [559], [562], [563], [564], [572], [573], [574] [2019-09-16 17:08:39,594 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:39,595 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:39,668 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:39,670 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-16 17:08:39,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:39,675 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:39,730 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:39,730 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:39,735 INFO L420 sIntCurrentIteration]: We unified 163 AI predicates to 163 [2019-09-16 17:08:39,736 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:39,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:39,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-09-16 17:08:39,737 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:39,737 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:39,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:39,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:39,738 INFO L87 Difference]: Start difference. First operand 2895 states and 3721 transitions. Second operand 2 states. [2019-09-16 17:08:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:39,739 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:39,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:39,739 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 164 [2019-09-16 17:08:39,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:39,739 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:39,739 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:39,740 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 163 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 17:08:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:39,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:39,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2019-09-16 17:08:39,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:39,741 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:39,741 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:39,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:39,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:39,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:39 BoogieIcfgContainer [2019-09-16 17:08:39,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:39,749 INFO L168 Benchmark]: Toolchain (without parser) took 7076.48 ms. Allocated memory was 139.5 MB in the beginning and 317.2 MB in the end (delta: 177.7 MB). Free memory was 88.2 MB in the beginning and 246.2 MB in the end (delta: -158.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:39,750 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:39,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.70 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 88.0 MB in the beginning and 163.5 MB in the end (delta: -75.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:39,752 INFO L168 Benchmark]: Boogie Preprocessor took 92.52 ms. Allocated memory is still 198.7 MB. Free memory was 163.5 MB in the beginning and 159.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:39,753 INFO L168 Benchmark]: RCFGBuilder took 1282.84 ms. Allocated memory was 198.7 MB in the beginning and 227.0 MB in the end (delta: 28.3 MB). Free memory was 159.2 MB in the beginning and 189.3 MB in the end (delta: -30.0 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:39,754 INFO L168 Benchmark]: TraceAbstraction took 4918.73 ms. Allocated memory was 227.0 MB in the beginning and 317.2 MB in the end (delta: 90.2 MB). Free memory was 189.3 MB in the beginning and 246.2 MB in the end (delta: -56.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:39,758 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.70 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 88.0 MB in the beginning and 163.5 MB in the end (delta: -75.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.52 ms. Allocated memory is still 198.7 MB. Free memory was 163.5 MB in the beginning and 159.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1282.84 ms. Allocated memory was 198.7 MB in the beginning and 227.0 MB in the end (delta: 28.3 MB). Free memory was 159.2 MB in the beginning and 189.3 MB in the end (delta: -30.0 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4918.73 ms. Allocated memory was 227.0 MB in the beginning and 317.2 MB in the end (delta: 90.2 MB). Free memory was 189.3 MB in the beginning and 246.2 MB in the end (delta: -56.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1009]: 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 43 procedures, 256 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1769 SDtfs, 987 SDslu, 3908 SDs, 0 SdLazy, 1030 SolverSat, 134 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2895occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8098159509202454 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 313 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 827 NumberOfCodeBlocks, 827 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 817 ConstructedInterpolants, 0 QuantifiedInterpolants, 120748 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 51/59 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...