java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:52,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:52,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:52,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:52,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:52,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:52,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:52,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:52,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:52,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:52,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:52,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:52,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:52,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:52,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:52,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:52,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:52,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:52,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:52,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:52,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:52,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:52,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:52,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:52,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:52,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:52,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:52,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:52,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:52,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:52,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:52,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:52,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:52,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:52,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:52,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:52,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:52,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:52,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:52,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:52,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:52,698 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 [2019-09-10 02:49:52,713 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:52,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:52,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:52,714 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:52,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:52,715 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:52,715 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:52,715 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:52,715 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:52,715 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:52,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:52,716 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:52,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:52,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:52,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:52,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:52,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:52,717 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:52,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:52,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:52,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:52,718 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:52,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:52,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:52,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:52,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:52,719 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:52,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:52,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:52,720 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:52,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:52,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:52,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:52,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:52,769 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:52,769 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product05.cil.c [2019-09-10 02:49:52,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6324c383/f3187a099a8047a9954d1942d9470378/FLAG45965c41f [2019-09-10 02:49:53,415 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:53,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product05.cil.c [2019-09-10 02:49:53,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6324c383/f3187a099a8047a9954d1942d9470378/FLAG45965c41f [2019-09-10 02:49:53,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6324c383/f3187a099a8047a9954d1942d9470378 [2019-09-10 02:49:53,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:53,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:53,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:53,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:53,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:53,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa083bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53, skipping insertion in model container [2019-09-10 02:49:53,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,754 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:53,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:54,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:54,234 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:54,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:54,372 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:54,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54 WrapperNode [2019-09-10 02:49:54,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:54,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:54,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:54,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:54,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (1/1) ... [2019-09-10 02:49:54,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (1/1) ... [2019-09-10 02:49:54,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (1/1) ... [2019-09-10 02:49:54,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (1/1) ... [2019-09-10 02:49:54,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (1/1) ... [2019-09-10 02:49:54,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (1/1) ... [2019-09-10 02:49:54,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (1/1) ... [2019-09-10 02:49:54,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:54,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:54,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:54,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:54,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (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 [2019-09-10 02:49:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:49:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:49:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:55,597 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:55,597 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:55,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:55 BoogieIcfgContainer [2019-09-10 02:49:55,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:55,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:55,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:55,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:55,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:53" (1/3) ... [2019-09-10 02:49:55,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4bea94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:55, skipping insertion in model container [2019-09-10 02:49:55,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:54" (2/3) ... [2019-09-10 02:49:55,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4bea94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:55, skipping insertion in model container [2019-09-10 02:49:55,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:55" (3/3) ... [2019-09-10 02:49:55,607 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product05.cil.c [2019-09-10 02:49:55,618 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:55,626 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:55,644 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:55,668 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:55,669 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:55,669 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:55,669 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:55,669 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:55,670 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:55,670 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:55,670 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:55,690 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-09-10 02:49:55,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:49:55,703 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,704 INFO L399 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] [2019-09-10 02:49:55,707 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1732377001, now seen corresponding path program 1 times [2019-09-10 02:49:55,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,757 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:56,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:56,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:56,022 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:56,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:56,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:56,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:56,045 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2019-09-10 02:49:56,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:56,081 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2019-09-10 02:49:56,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:56,082 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:49:56,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:56,098 INFO L225 Difference]: With dead ends: 113 [2019-09-10 02:49:56,098 INFO L226 Difference]: Without dead ends: 102 [2019-09-10 02:49:56,101 INFO L628 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 [2019-09-10 02:49:56,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-09-10 02:49:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-09-10 02:49:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-09-10 02:49:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2019-09-10 02:49:56,170 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 46 [2019-09-10 02:49:56,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:56,171 INFO L475 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2019-09-10 02:49:56,171 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2019-09-10 02:49:56,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:49:56,174 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:56,174 INFO L399 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] [2019-09-10 02:49:56,175 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:56,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:56,175 INFO L82 PathProgramCache]: Analyzing trace with hash -649161626, now seen corresponding path program 1 times [2019-09-10 02:49:56,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:56,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:56,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,177 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:56,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:56,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:56,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:56,329 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:56,331 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:56,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:56,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:56,332 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand 3 states. [2019-09-10 02:49:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:56,345 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2019-09-10 02:49:56,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:56,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:49:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:56,348 INFO L225 Difference]: With dead ends: 93 [2019-09-10 02:49:56,348 INFO L226 Difference]: Without dead ends: 93 [2019-09-10 02:49:56,349 INFO L628 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 [2019-09-10 02:49:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-09-10 02:49:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2019-09-10 02:49:56,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-09-10 02:49:56,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2019-09-10 02:49:56,361 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 47 [2019-09-10 02:49:56,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:56,362 INFO L475 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2019-09-10 02:49:56,362 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:56,362 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2019-09-10 02:49:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:49:56,365 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:56,366 INFO L399 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] [2019-09-10 02:49:56,366 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:56,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1083619530, now seen corresponding path program 1 times [2019-09-10 02:49:56,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:56,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:56,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:56,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:56,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:56,520 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:56,520 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:56,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:56,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:56,521 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand 7 states. [2019-09-10 02:49:56,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:56,900 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-09-10 02:49:56,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:56,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-10 02:49:56,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:56,903 INFO L225 Difference]: With dead ends: 93 [2019-09-10 02:49:56,903 INFO L226 Difference]: Without dead ends: 93 [2019-09-10 02:49:56,903 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:56,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-09-10 02:49:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2019-09-10 02:49:56,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-09-10 02:49:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2019-09-10 02:49:56,921 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 51 [2019-09-10 02:49:56,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:56,922 INFO L475 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2019-09-10 02:49:56,922 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:56,926 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2019-09-10 02:49:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:49:56,931 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:56,931 INFO L399 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] [2019-09-10 02:49:56,933 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:56,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:56,933 INFO L82 PathProgramCache]: Analyzing trace with hash 285215055, now seen corresponding path program 1 times [2019-09-10 02:49:56,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:56,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:56,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,935 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:57,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:57,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:49:57,169 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:57,169 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:49:57,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:49:57,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:57,171 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 10 states. [2019-09-10 02:49:57,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:57,796 INFO L93 Difference]: Finished difference Result 211 states and 250 transitions. [2019-09-10 02:49:57,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:49:57,797 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2019-09-10 02:49:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:57,801 INFO L225 Difference]: With dead ends: 211 [2019-09-10 02:49:57,802 INFO L226 Difference]: Without dead ends: 211 [2019-09-10 02:49:57,802 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:49:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2019-09-10 02:49:57,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 207. [2019-09-10 02:49:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-09-10 02:49:57,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2019-09-10 02:49:57,844 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 59 [2019-09-10 02:49:57,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:57,845 INFO L475 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2019-09-10 02:49:57,845 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:49:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2019-09-10 02:49:57,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 02:49:57,848 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:57,848 INFO L399 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] [2019-09-10 02:49:57,849 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:57,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:57,849 INFO L82 PathProgramCache]: Analyzing trace with hash 92933499, now seen corresponding path program 1 times [2019-09-10 02:49:57,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:57,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:57,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,851 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:57,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:57,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:57,921 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:57,922 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:57,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:57,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:57,922 INFO L87 Difference]: Start difference. First operand 207 states and 243 transitions. Second operand 3 states. [2019-09-10 02:49:57,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:57,935 INFO L93 Difference]: Finished difference Result 149 states and 167 transitions. [2019-09-10 02:49:57,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:57,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-10 02:49:57,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:57,938 INFO L225 Difference]: With dead ends: 149 [2019-09-10 02:49:57,938 INFO L226 Difference]: Without dead ends: 149 [2019-09-10 02:49:57,939 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:57,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-09-10 02:49:57,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-09-10 02:49:57,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-09-10 02:49:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 167 transitions. [2019-09-10 02:49:57,950 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 167 transitions. Word has length 67 [2019-09-10 02:49:57,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:57,950 INFO L475 AbstractCegarLoop]: Abstraction has 149 states and 167 transitions. [2019-09-10 02:49:57,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 167 transitions. [2019-09-10 02:49:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:49:57,953 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:57,954 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:57,954 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:57,955 INFO L82 PathProgramCache]: Analyzing trace with hash -670473657, now seen corresponding path program 1 times [2019-09-10 02:49:57,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:57,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:57,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,956 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:58,075 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-10 02:49:58,077 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:49:58,077 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:49:58,078 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 99 with the following transitions: [2019-09-10 02:49:58,081 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [102], [118], [133], [136], [137], [138], [147], [151], [155], [158], [163], [169], [171], [174], [200], [201], [209], [213], [219], [255], [259], [260], [263], [264], [265], [358], [359], [369], [377], [378], [379], [380], [381], [383], [384], [385], [386], [387], [388], [389], [390], [391], [429], [430], [431], [432], [435], [436], [441], [442], [443], [444], [451], [459], [460], [461] [2019-09-10 02:49:58,133 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:49:58,134 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:49:58,205 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:49:58,207 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. [2019-09-10 02:49:58,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:58,211 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:49:58,254 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:49:58,255 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:49:58,258 INFO L420 sIntCurrentIteration]: We unified 97 AI predicates to 97 [2019-09-10 02:49:58,258 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:49:58,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:49:58,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:49:58,260 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:58,260 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:58,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:58,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:58,261 INFO L87 Difference]: Start difference. First operand 149 states and 167 transitions. Second operand 2 states. [2019-09-10 02:49:58,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:58,261 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:49:58,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:58,262 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 98 [2019-09-10 02:49:58,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:58,262 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:49:58,262 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:58,262 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:58,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:58,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:58,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:58,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2019-09-10 02:49:58,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:58,264 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:58,264 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:58,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:58,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:58 BoogieIcfgContainer [2019-09-10 02:49:58,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:58,272 INFO L168 Benchmark]: Toolchain (without parser) took 4532.98 ms. Allocated memory was 135.3 MB in the beginning and 254.8 MB in the end (delta: 119.5 MB). Free memory was 90.6 MB in the beginning and 113.9 MB in the end (delta: -23.2 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,273 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.69 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 90.4 MB in the beginning and 167.0 MB in the end (delta: -76.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,275 INFO L168 Benchmark]: Boogie Preprocessor took 108.97 ms. Allocated memory is still 201.3 MB. Free memory was 167.0 MB in the beginning and 162.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,276 INFO L168 Benchmark]: RCFGBuilder took 1115.89 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 162.8 MB in the beginning and 199.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,277 INFO L168 Benchmark]: TraceAbstraction took 2669.64 ms. Allocated memory was 230.2 MB in the beginning and 254.8 MB in the end (delta: 24.6 MB). Free memory was 199.9 MB in the beginning and 113.9 MB in the end (delta: 86.1 MB). Peak memory consumption was 110.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,281 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.69 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 90.4 MB in the beginning and 167.0 MB in the end (delta: -76.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.97 ms. Allocated memory is still 201.3 MB. Free memory was 167.0 MB in the beginning and 162.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1115.89 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 162.8 MB in the beginning and 199.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2669.64 ms. Allocated memory was 230.2 MB in the beginning and 254.8 MB in the end (delta: 24.6 MB). Free memory was 199.9 MB in the beginning and 113.9 MB in the end (delta: 86.1 MB). Peak memory consumption was 110.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 827]: 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 35 procedures, 204 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 537 SDtfs, 344 SDslu, 1075 SDs, 0 SdLazy, 355 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.9690721649484536 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 362 ConstructedInterpolants, 0 QuantifiedInterpolants, 47662 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 27/31 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...