java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:32,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:32,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:32,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:32,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:32,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:32,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:32,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:32,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:32,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:32,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:32,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:32,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:32,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:32,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:32,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:32,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:32,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:32,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:32,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:32,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:32,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:32,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:32,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:32,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:32,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:32,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:32,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:32,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:32,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:32,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:32,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:32,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:32,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:32,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:32,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:32,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:32,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:32,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:32,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:32,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:32,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:32,707 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:32,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:32,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:32,707 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:32,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:32,709 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:32,709 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:32,709 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:32,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:32,710 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:32,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:32,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:32,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:32,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:32,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:32,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:32,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:32,714 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:32,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:32,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:32,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:32,715 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:32,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:32,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:32,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:32,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:32,716 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:32,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:32,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:32,716 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:32,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:32,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:32,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:32,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:32,782 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:32,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c [2019-09-20 13:29:32,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e978c3b7c/49d30339115640e6a3e040402eca0e3f/FLAGc31d704fb [2019-09-20 13:29:33,414 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:33,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c [2019-09-20 13:29:33,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e978c3b7c/49d30339115640e6a3e040402eca0e3f/FLAGc31d704fb [2019-09-20 13:29:33,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e978c3b7c/49d30339115640e6a3e040402eca0e3f [2019-09-20 13:29:33,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:33,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:33,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:33,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:33,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:33,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:33" (1/1) ... [2019-09-20 13:29:33,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f808fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:33, skipping insertion in model container [2019-09-20 13:29:33,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:33" (1/1) ... [2019-09-20 13:29:33,709 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:33,763 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:34,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:34,215 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:34,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:34,382 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:34,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34 WrapperNode [2019-09-20 13:29:34,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:34,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:34,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:34,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:34,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:34,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:34,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:34,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:34,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:34,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:34,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:34,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:34,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:34,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:34,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:34,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:34,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:34,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:34,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:34,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:34,552 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:34,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:34,554 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:34,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:34,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:34,555 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:34,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:34,567 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:34,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:35,746 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:35,747 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:35,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:35 BoogieIcfgContainer [2019-09-20 13:29:35,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:35,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:35,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:35,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:35,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:33" (1/3) ... [2019-09-20 13:29:35,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33043789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:35, skipping insertion in model container [2019-09-20 13:29:35,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (2/3) ... [2019-09-20 13:29:35,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33043789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:35, skipping insertion in model container [2019-09-20 13:29:35,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:35" (3/3) ... [2019-09-20 13:29:35,759 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product17.cil.c [2019-09-20 13:29:35,769 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:35,780 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:35,810 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:35,836 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:35,836 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:35,837 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:35,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:35,837 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:35,837 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:35,837 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:35,838 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:35,857 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2019-09-20 13:29:35,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:35,869 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:35,870 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:35,872 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:35,878 INFO L82 PathProgramCache]: Analyzing trace with hash -697118378, now seen corresponding path program 1 times [2019-09-20 13:29:35,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:35,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:35,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:35,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:35,933 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:36,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:36,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:36,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:36,212 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:36,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:36,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:36,231 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2019-09-20 13:29:36,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:36,258 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2019-09-20 13:29:36,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:36,260 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:36,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:36,272 INFO L225 Difference]: With dead ends: 115 [2019-09-20 13:29:36,273 INFO L226 Difference]: Without dead ends: 104 [2019-09-20 13:29:36,275 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-20 13:29:36,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-20 13:29:36,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-20 13:29:36,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2019-09-20 13:29:36,327 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 46 [2019-09-20 13:29:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:36,330 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2019-09-20 13:29:36,331 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2019-09-20 13:29:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:36,334 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:36,334 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:36,335 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:36,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:36,335 INFO L82 PathProgramCache]: Analyzing trace with hash -133554589, now seen corresponding path program 1 times [2019-09-20 13:29:36,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:36,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:36,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,338 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:36,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:36,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:36,488 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:36,490 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:36,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:36,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:36,491 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand 3 states. [2019-09-20 13:29:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:36,505 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2019-09-20 13:29:36,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:36,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:36,508 INFO L225 Difference]: With dead ends: 95 [2019-09-20 13:29:36,508 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:29:36,509 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:29:36,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:29:36,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:29:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2019-09-20 13:29:36,528 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 47 [2019-09-20 13:29:36,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:36,529 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2019-09-20 13:29:36,529 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2019-09-20 13:29:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:36,531 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:36,532 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:36,532 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:36,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:36,534 INFO L82 PathProgramCache]: Analyzing trace with hash 70814948, now seen corresponding path program 1 times [2019-09-20 13:29:36,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:36,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:36,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,538 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:36,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:36,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:36,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:36,711 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:36,712 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:36,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:36,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:36,713 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 3 states. [2019-09-20 13:29:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:36,742 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2019-09-20 13:29:36,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:36,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-20 13:29:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:36,750 INFO L225 Difference]: With dead ends: 95 [2019-09-20 13:29:36,750 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:29:36,751 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:29:36,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:29:36,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:29:36,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2019-09-20 13:29:36,773 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 51 [2019-09-20 13:29:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:36,774 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2019-09-20 13:29:36,774 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2019-09-20 13:29:36,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:29:36,780 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:36,780 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:36,780 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:36,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:36,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1870012479, now seen corresponding path program 1 times [2019-09-20 13:29:36,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:36,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:36,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,786 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:36,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:36,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:36,970 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:36,971 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:36,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:36,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:36,974 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand 6 states. [2019-09-20 13:29:37,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:37,214 INFO L93 Difference]: Finished difference Result 159 states and 184 transitions. [2019-09-20 13:29:37,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:37,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-09-20 13:29:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:37,218 INFO L225 Difference]: With dead ends: 159 [2019-09-20 13:29:37,218 INFO L226 Difference]: Without dead ends: 159 [2019-09-20 13:29:37,219 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:37,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-09-20 13:29:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2019-09-20 13:29:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-09-20 13:29:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 182 transitions. [2019-09-20 13:29:37,237 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 182 transitions. Word has length 59 [2019-09-20 13:29:37,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:37,238 INFO L475 AbstractCegarLoop]: Abstraction has 157 states and 182 transitions. [2019-09-20 13:29:37,238 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:37,238 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 182 transitions. [2019-09-20 13:29:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-20 13:29:37,240 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:37,240 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:37,241 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:37,241 INFO L82 PathProgramCache]: Analyzing trace with hash 654505667, now seen corresponding path program 1 times [2019-09-20 13:29:37,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:37,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:37,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,245 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:37,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:37,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:37,401 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:37,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:37,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:37,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:37,406 INFO L87 Difference]: Start difference. First operand 157 states and 182 transitions. Second operand 7 states. [2019-09-20 13:29:37,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:37,748 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2019-09-20 13:29:37,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:37,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2019-09-20 13:29:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:37,750 INFO L225 Difference]: With dead ends: 112 [2019-09-20 13:29:37,750 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:37,750 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:29:37,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:37,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:37,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:37,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2019-09-20 13:29:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:37,752 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:37,752 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:37,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:37,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:37 BoogieIcfgContainer [2019-09-20 13:29:37,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:37,760 INFO L168 Benchmark]: Toolchain (without parser) took 4066.60 ms. Allocated memory was 130.0 MB in the beginning and 272.6 MB in the end (delta: 142.6 MB). Free memory was 85.0 MB in the beginning and 200.4 MB in the end (delta: -115.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,761 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.05 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 84.8 MB in the beginning and 160.8 MB in the end (delta: -75.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,763 INFO L168 Benchmark]: Boogie Preprocessor took 86.60 ms. Allocated memory is still 197.7 MB. Free memory was 160.8 MB in the beginning and 156.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,764 INFO L168 Benchmark]: RCFGBuilder took 1277.94 ms. Allocated memory is still 197.7 MB. Free memory was 156.8 MB in the beginning and 72.4 MB in the end (delta: 84.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,765 INFO L168 Benchmark]: TraceAbstraction took 2006.97 ms. Allocated memory was 197.7 MB in the beginning and 272.6 MB in the end (delta: 75.0 MB). Free memory was 71.7 MB in the beginning and 200.4 MB in the end (delta: -128.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:37,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.05 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 84.8 MB in the beginning and 160.8 MB in the end (delta: -75.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.60 ms. Allocated memory is still 197.7 MB. Free memory was 160.8 MB in the beginning and 156.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1277.94 ms. Allocated memory is still 197.7 MB. Free memory was 156.8 MB in the beginning and 72.4 MB in the end (delta: 84.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2006.97 ms. Allocated memory was 197.7 MB in the beginning and 272.6 MB in the end (delta: 75.0 MB). Free memory was 71.7 MB in the beginning and 200.4 MB in the end (delta: -128.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: 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 37 procedures, 214 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 526 SDtfs, 234 SDslu, 587 SDs, 0 SdLazy, 209 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 25229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...