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_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:25,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:25,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:25,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:25,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:25,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:25,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:25,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:25,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:25,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:25,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:25,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:25,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:25,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:25,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:25,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:25,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:25,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:25,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:25,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:25,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:25,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:25,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:25,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:25,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:25,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:25,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:25,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:25,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:25,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:25,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:25,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:25,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:25,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:25,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:25,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:25,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:25,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:25,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:25,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:25,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:25,680 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 13:29:25,701 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:25,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:25,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:25,702 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:25,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:25,702 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:25,703 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:25,703 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:25,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:25,703 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:25,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:25,704 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:25,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:25,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:25,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:25,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:25,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:25,705 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:25,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:25,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:25,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:25,706 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:25,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:25,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:25,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:25,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:25,707 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:25,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:25,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:25,708 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:25,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:25,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:25,755 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:25,756 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:25,757 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:25,758 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product06.cil.c [2019-09-20 13:29:25,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b756840ae/a0fb73ad4fb0413c9a6f6caa4edc0e7f/FLAGb607030f5 [2019-09-20 13:29:26,275 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:26,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product06.cil.c [2019-09-20 13:29:26,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b756840ae/a0fb73ad4fb0413c9a6f6caa4edc0e7f/FLAGb607030f5 [2019-09-20 13:29:26,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b756840ae/a0fb73ad4fb0413c9a6f6caa4edc0e7f [2019-09-20 13:29:26,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:26,605 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:26,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:26,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:26,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:26,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:26" (1/1) ... [2019-09-20 13:29:26,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44397968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:26, skipping insertion in model container [2019-09-20 13:29:26,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:26" (1/1) ... [2019-09-20 13:29:26,621 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:26,687 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:27,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:27,171 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:27,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:27,278 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:27,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27 WrapperNode [2019-09-20 13:29:27,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:27,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:27,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:27,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:27,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (1/1) ... [2019-09-20 13:29:27,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (1/1) ... [2019-09-20 13:29:27,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (1/1) ... [2019-09-20 13:29:27,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (1/1) ... [2019-09-20 13:29:27,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (1/1) ... [2019-09-20 13:29:27,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (1/1) ... [2019-09-20 13:29:27,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (1/1) ... [2019-09-20 13:29:27,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:27,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:27,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:27,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:27,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (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 13:29:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:27,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:27,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:27,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:27,528 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:27,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:27,529 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:27,531 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:27,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:27,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:27,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:28,744 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:28,744 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:28,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:28 BoogieIcfgContainer [2019-09-20 13:29:28,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:28,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:28,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:28,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:28,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:26" (1/3) ... [2019-09-20 13:29:28,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21062f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:28, skipping insertion in model container [2019-09-20 13:29:28,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:27" (2/3) ... [2019-09-20 13:29:28,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21062f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:28, skipping insertion in model container [2019-09-20 13:29:28,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:28" (3/3) ... [2019-09-20 13:29:28,756 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product06.cil.c [2019-09-20 13:29:28,766 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:28,776 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:28,794 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:28,826 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:28,827 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:28,827 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:28,827 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:28,827 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:28,828 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:28,828 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:28,828 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2019-09-20 13:29:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:28,881 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:28,882 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 13:29:28,884 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:28,891 INFO L82 PathProgramCache]: Analyzing trace with hash 2125961732, now seen corresponding path program 1 times [2019-09-20 13:29:28,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:28,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:28,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:28,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:28,946 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:29,247 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 13:29:29,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:29,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:29,250 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:29,256 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:29,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:29,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:29,273 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2019-09-20 13:29:29,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:29,304 INFO L93 Difference]: Finished difference Result 114 states and 132 transitions. [2019-09-20 13:29:29,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:29,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:29,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:29,317 INFO L225 Difference]: With dead ends: 114 [2019-09-20 13:29:29,317 INFO L226 Difference]: Without dead ends: 103 [2019-09-20 13:29:29,319 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 13:29:29,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-09-20 13:29:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-09-20 13:29:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-09-20 13:29:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2019-09-20 13:29:29,394 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 46 [2019-09-20 13:29:29,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:29,394 INFO L475 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2019-09-20 13:29:29,394 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2019-09-20 13:29:29,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:29,398 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:29,398 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 13:29:29,398 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:29,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:29,399 INFO L82 PathProgramCache]: Analyzing trace with hash -123733741, now seen corresponding path program 1 times [2019-09-20 13:29:29,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:29,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:29,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:29,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:29,402 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:29,501 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 13:29:29,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:29,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:29,502 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:29,504 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:29,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:29,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:29,505 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand 3 states. [2019-09-20 13:29:29,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:29,519 INFO L93 Difference]: Finished difference Result 94 states and 108 transitions. [2019-09-20 13:29:29,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:29,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:29,521 INFO L225 Difference]: With dead ends: 94 [2019-09-20 13:29:29,522 INFO L226 Difference]: Without dead ends: 94 [2019-09-20 13:29:29,523 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 13:29:29,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-09-20 13:29:29,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-09-20 13:29:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-09-20 13:29:29,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2019-09-20 13:29:29,533 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 47 [2019-09-20 13:29:29,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:29,534 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2019-09-20 13:29:29,534 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:29,534 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2019-09-20 13:29:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:29,536 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:29,536 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:29,536 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:29,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:29,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1891924118, now seen corresponding path program 1 times [2019-09-20 13:29:29,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:29,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:29,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:29,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:29,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:29,771 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 13:29:29,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:29,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:29,772 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:29,773 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:29,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:29,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:29,775 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 7 states. [2019-09-20 13:29:30,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:30,051 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2019-09-20 13:29:30,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:30,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:29:30,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:30,053 INFO L225 Difference]: With dead ends: 94 [2019-09-20 13:29:30,053 INFO L226 Difference]: Without dead ends: 94 [2019-09-20 13:29:30,054 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:29:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-09-20 13:29:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-09-20 13:29:30,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-09-20 13:29:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2019-09-20 13:29:30,065 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 52 [2019-09-20 13:29:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:30,066 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2019-09-20 13:29:30,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:30,067 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2019-09-20 13:29:30,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:29:30,071 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:30,072 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] [2019-09-20 13:29:30,072 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:30,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:30,076 INFO L82 PathProgramCache]: Analyzing trace with hash 886985955, now seen corresponding path program 1 times [2019-09-20 13:29:30,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:30,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:30,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,081 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:30,231 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 13:29:30,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:30,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:30,232 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:30,232 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:30,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:30,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:30,233 INFO L87 Difference]: Start difference. First operand 94 states and 107 transitions. Second operand 6 states. [2019-09-20 13:29:30,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:30,482 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-09-20 13:29:30,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:30,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-09-20 13:29:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:30,487 INFO L225 Difference]: With dead ends: 157 [2019-09-20 13:29:30,487 INFO L226 Difference]: Without dead ends: 157 [2019-09-20 13:29:30,487 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 13:29:30,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-09-20 13:29:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2019-09-20 13:29:30,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-09-20 13:29:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 180 transitions. [2019-09-20 13:29:30,518 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 180 transitions. Word has length 60 [2019-09-20 13:29:30,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:30,519 INFO L475 AbstractCegarLoop]: Abstraction has 155 states and 180 transitions. [2019-09-20 13:29:30,519 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 180 transitions. [2019-09-20 13:29:30,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:29:30,521 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:30,522 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:30,522 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:30,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:30,523 INFO L82 PathProgramCache]: Analyzing trace with hash -179507553, now seen corresponding path program 1 times [2019-09-20 13:29:30,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:30,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:30,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,532 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:30,691 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 13:29:30,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:30,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:30,692 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:30,694 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:30,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:30,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:30,697 INFO L87 Difference]: Start difference. First operand 155 states and 180 transitions. Second operand 7 states. [2019-09-20 13:29:31,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:31,034 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-09-20 13:29:31,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:31,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-09-20 13:29:31,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:31,036 INFO L225 Difference]: With dead ends: 120 [2019-09-20 13:29:31,036 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:31,036 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 13:29:31,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:31,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:31,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:31,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:31,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2019-09-20 13:29:31,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:31,039 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:31,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:31,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:31,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:31,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:31 BoogieIcfgContainer [2019-09-20 13:29:31,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:31,050 INFO L168 Benchmark]: Toolchain (without parser) took 4444.29 ms. Allocated memory was 137.9 MB in the beginning and 270.5 MB in the end (delta: 132.6 MB). Free memory was 85.0 MB in the beginning and 172.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:31,051 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:31,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.49 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 84.8 MB in the beginning and 166.7 MB in the end (delta: -81.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:31,055 INFO L168 Benchmark]: Boogie Preprocessor took 157.16 ms. Allocated memory is still 198.7 MB. Free memory was 166.7 MB in the beginning and 162.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:31,056 INFO L168 Benchmark]: RCFGBuilder took 1309.13 ms. Allocated memory is still 198.7 MB. Free memory was 162.8 MB in the beginning and 79.3 MB in the end (delta: 83.5 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:31,058 INFO L168 Benchmark]: TraceAbstraction took 2299.44 ms. Allocated memory was 198.7 MB in the beginning and 270.5 MB in the end (delta: 71.8 MB). Free memory was 78.6 MB in the beginning and 172.7 MB in the end (delta: -94.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:31,068 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.49 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 84.8 MB in the beginning and 166.7 MB in the end (delta: -81.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.16 ms. Allocated memory is still 198.7 MB. Free memory was 166.7 MB in the beginning and 162.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1309.13 ms. Allocated memory is still 198.7 MB. Free memory was 162.8 MB in the beginning and 79.3 MB in the end (delta: 83.5 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2299.44 ms. Allocated memory was 198.7 MB in the beginning and 270.5 MB in the end (delta: 71.8 MB). Free memory was 78.6 MB in the beginning and 172.7 MB in the end (delta: -94.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: 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 36 procedures, 208 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 523 SDtfs, 248 SDslu, 805 SDs, 0 SdLazy, 320 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 27132 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...