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_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:12,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:12,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:12,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:12,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:12,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:12,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:12,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:12,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:12,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:12,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:12,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:12,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:12,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:12,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:12,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:12,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:12,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:12,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:12,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:12,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:12,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:12,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:12,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:12,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:12,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:12,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:12,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:12,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:12,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:12,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:12,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:12,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:12,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:12,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:12,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:12,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:12,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:12,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:12,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:12,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:12,645 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 [2019-10-03 02:58:12,661 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:12,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:12,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:12,662 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:12,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:12,663 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:12,663 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:12,663 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:12,664 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:12,664 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:12,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:12,665 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:12,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:12,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:12,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:12,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:12,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:12,666 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:12,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:12,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:12,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:12,667 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:12,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:12,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:12,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:12,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:12,668 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:12,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:12,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:12,668 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:12,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:12,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:12,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:12,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:12,718 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:12,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product09.cil.c [2019-10-03 02:58:12,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3cd8e5d/87aad4b1ee8c4e68b2cf0c1b487dbffc/FLAG191937801 [2019-10-03 02:58:13,329 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:13,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product09.cil.c [2019-10-03 02:58:13,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3cd8e5d/87aad4b1ee8c4e68b2cf0c1b487dbffc/FLAG191937801 [2019-10-03 02:58:13,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3cd8e5d/87aad4b1ee8c4e68b2cf0c1b487dbffc [2019-10-03 02:58:13,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:13,658 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:13,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:13,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:13,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:13,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:13" (1/1) ... [2019-10-03 02:58:13,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2007b307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:13, skipping insertion in model container [2019-10-03 02:58:13,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:13" (1/1) ... [2019-10-03 02:58:13,676 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:13,743 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:14,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:14,233 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:14,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:14,347 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:14,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14 WrapperNode [2019-10-03 02:58:14,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:14,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:14,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:14,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:14,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (1/1) ... [2019-10-03 02:58:14,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (1/1) ... [2019-10-03 02:58:14,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (1/1) ... [2019-10-03 02:58:14,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (1/1) ... [2019-10-03 02:58:14,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (1/1) ... [2019-10-03 02:58:14,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (1/1) ... [2019-10-03 02:58:14,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (1/1) ... [2019-10-03 02:58:14,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:14,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:14,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:14,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:14,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (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 [2019-10-03 02:58:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-10-03 02:58:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-10-03 02:58:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:15,481 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:15,481 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:15,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:15 BoogieIcfgContainer [2019-10-03 02:58:15,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:15,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:15,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:15,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:15,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:13" (1/3) ... [2019-10-03 02:58:15,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57baf9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:15, skipping insertion in model container [2019-10-03 02:58:15,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:14" (2/3) ... [2019-10-03 02:58:15,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57baf9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:15, skipping insertion in model container [2019-10-03 02:58:15,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:15" (3/3) ... [2019-10-03 02:58:15,507 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product09.cil.c [2019-10-03 02:58:15,517 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:15,526 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:15,543 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:15,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:15,570 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:15,570 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:15,571 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:15,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:15,571 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:15,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:15,572 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-10-03 02:58:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:15,603 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:15,604 INFO L411 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] [2019-10-03 02:58:15,607 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:15,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:15,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1141825369, now seen corresponding path program 1 times [2019-10-03 02:58:15,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:15,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:15,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:15,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:15,680 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:16,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:16,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:16,019 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:16,025 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:16,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:16,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:16,044 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-10-03 02:58:16,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:16,075 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2019-10-03 02:58:16,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:16,076 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:16,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:16,087 INFO L225 Difference]: With dead ends: 92 [2019-10-03 02:58:16,087 INFO L226 Difference]: Without dead ends: 81 [2019-10-03 02:58:16,089 INFO L640 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 [2019-10-03 02:58:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-03 02:58:16,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-10-03 02:58:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-03 02:58:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2019-10-03 02:58:16,139 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 46 [2019-10-03 02:58:16,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:16,140 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2019-10-03 02:58:16,140 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2019-10-03 02:58:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:16,143 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:16,143 INFO L411 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] [2019-10-03 02:58:16,144 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:16,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:16,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1674217379, now seen corresponding path program 1 times [2019-10-03 02:58:16,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:16,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:16,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:16,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:16,148 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:16,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:16,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:16,262 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:16,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:16,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:16,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:16,266 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand 3 states. [2019-10-03 02:58:16,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:16,289 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2019-10-03 02:58:16,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:16,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:16,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:16,295 INFO L225 Difference]: With dead ends: 72 [2019-10-03 02:58:16,295 INFO L226 Difference]: Without dead ends: 72 [2019-10-03 02:58:16,296 INFO L640 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 [2019-10-03 02:58:16,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-03 02:58:16,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-10-03 02:58:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-03 02:58:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2019-10-03 02:58:16,315 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 47 [2019-10-03 02:58:16,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:16,317 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2019-10-03 02:58:16,318 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2019-10-03 02:58:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:58:16,322 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:16,322 INFO L411 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] [2019-10-03 02:58:16,322 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1654524971, now seen corresponding path program 1 times [2019-10-03 02:58:16,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:16,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:16,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:16,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:16,327 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:16,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:16,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:16,492 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:16,493 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:16,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:16,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:16,494 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 7 states. [2019-10-03 02:58:16,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:16,706 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2019-10-03 02:58:16,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:16,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-03 02:58:16,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:16,708 INFO L225 Difference]: With dead ends: 72 [2019-10-03 02:58:16,708 INFO L226 Difference]: Without dead ends: 72 [2019-10-03 02:58:16,709 INFO L640 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 [2019-10-03 02:58:16,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-03 02:58:16,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-10-03 02:58:16,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-03 02:58:16,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2019-10-03 02:58:16,716 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 51 [2019-10-03 02:58:16,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:16,716 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2019-10-03 02:58:16,716 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:16,717 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2019-10-03 02:58:16,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-03 02:58:16,718 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:16,718 INFO L411 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] [2019-10-03 02:58:16,718 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:16,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:16,719 INFO L82 PathProgramCache]: Analyzing trace with hash 905199539, now seen corresponding path program 1 times [2019-10-03 02:58:16,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:16,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:16,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:16,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:16,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:16,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:16,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:16,899 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:16,900 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:16,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:16,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:16,901 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 10 states. [2019-10-03 02:58:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:17,402 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2019-10-03 02:58:17,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:17,404 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2019-10-03 02:58:17,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:17,409 INFO L225 Difference]: With dead ends: 148 [2019-10-03 02:58:17,409 INFO L226 Difference]: Without dead ends: 148 [2019-10-03 02:58:17,409 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-10-03 02:58:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2019-10-03 02:58:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-03 02:58:17,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 171 transitions. [2019-10-03 02:58:17,446 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 171 transitions. Word has length 54 [2019-10-03 02:58:17,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:17,447 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 171 transitions. [2019-10-03 02:58:17,447 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:17,447 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 171 transitions. [2019-10-03 02:58:17,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-03 02:58:17,451 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:17,453 INFO L411 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] [2019-10-03 02:58:17,454 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:17,454 INFO L82 PathProgramCache]: Analyzing trace with hash 526840461, now seen corresponding path program 1 times [2019-10-03 02:58:17,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:17,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:17,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:17,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:17,458 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:17,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:17,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:17,544 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:17,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:17,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:17,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:17,545 INFO L87 Difference]: Start difference. First operand 144 states and 171 transitions. Second operand 3 states. [2019-10-03 02:58:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:17,557 INFO L93 Difference]: Finished difference Result 134 states and 152 transitions. [2019-10-03 02:58:17,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:17,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-03 02:58:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:17,560 INFO L225 Difference]: With dead ends: 134 [2019-10-03 02:58:17,560 INFO L226 Difference]: Without dead ends: 134 [2019-10-03 02:58:17,560 INFO L640 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 [2019-10-03 02:58:17,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-03 02:58:17,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-03 02:58:17,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-03 02:58:17,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 152 transitions. [2019-10-03 02:58:17,578 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 152 transitions. Word has length 58 [2019-10-03 02:58:17,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:17,578 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 152 transitions. [2019-10-03 02:58:17,578 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:17,578 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 152 transitions. [2019-10-03 02:58:17,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-03 02:58:17,580 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:17,584 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:17,584 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:17,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1103000120, now seen corresponding path program 1 times [2019-10-03 02:58:17,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:17,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:17,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:17,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:17,588 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-03 02:58:17,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:17,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:58:17,699 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:17,699 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:58:17,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:58:17,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:58:17,700 INFO L87 Difference]: Start difference. First operand 134 states and 152 transitions. Second operand 6 states. [2019-10-03 02:58:17,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:17,831 INFO L93 Difference]: Finished difference Result 133 states and 151 transitions. [2019-10-03 02:58:17,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:17,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-10-03 02:58:17,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:17,832 INFO L225 Difference]: With dead ends: 133 [2019-10-03 02:58:17,832 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:17,833 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:17,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:17,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:17,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:17,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-10-03 02:58:17,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:17,836 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:17,836 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:58:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:17,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:17,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:17 BoogieIcfgContainer [2019-10-03 02:58:17,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:17,848 INFO L168 Benchmark]: Toolchain (without parser) took 4188.43 ms. Allocated memory was 134.7 MB in the beginning and 259.5 MB in the end (delta: 124.8 MB). Free memory was 87.1 MB in the beginning and 134.8 MB in the end (delta: -47.7 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:17,849 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 134.7 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:17,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.60 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 86.8 MB in the beginning and 168.4 MB in the end (delta: -81.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:17,852 INFO L168 Benchmark]: Boogie Preprocessor took 94.91 ms. Allocated memory is still 201.3 MB. Free memory was 168.4 MB in the beginning and 164.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:17,854 INFO L168 Benchmark]: RCFGBuilder took 1038.81 ms. Allocated memory is still 201.3 MB. Free memory was 164.2 MB in the beginning and 82.0 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:17,855 INFO L168 Benchmark]: TraceAbstraction took 2360.40 ms. Allocated memory was 201.3 MB in the beginning and 259.5 MB in the end (delta: 58.2 MB). Free memory was 81.4 MB in the beginning and 134.8 MB in the end (delta: -53.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:17,864 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 134.7 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.60 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 86.8 MB in the beginning and 168.4 MB in the end (delta: -81.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.91 ms. Allocated memory is still 201.3 MB. Free memory was 168.4 MB in the beginning and 164.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1038.81 ms. Allocated memory is still 201.3 MB. Free memory was 164.2 MB in the beginning and 82.0 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2360.40 ms. Allocated memory was 201.3 MB in the beginning and 259.5 MB in the end (delta: 58.2 MB). Free memory was 81.4 MB in the beginning and 134.8 MB in the end (delta: -53.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 410]: 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, 201 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 495 SDtfs, 259 SDslu, 938 SDs, 0 SdLazy, 315 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 39145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 26/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...