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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:45,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:45,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:45,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:45,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:45,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:45,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:45,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:45,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:45,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:45,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:45,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:45,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:45,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:45,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:45,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:45,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:45,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:45,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:45,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:45,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:45,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:45,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:45,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:45,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:45,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:45,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:45,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:45,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:45,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:45,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:45,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:45,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:45,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:45,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:45,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:45,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:45,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:45,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:45,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:45,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:45,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:47:45,742 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:45,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:45,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:45,745 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:45,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:45,746 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:45,746 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:45,746 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:45,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:45,747 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:45,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:45,751 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:45,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:45,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:45,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:45,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:45,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:45,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:45,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:45,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:45,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:45,753 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:45,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:45,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:45,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:45,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:45,754 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:45,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:45,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:45,754 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:45,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:45,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:45,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:45,814 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:45,815 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:45,815 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2019-09-10 02:47:45,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f393232b8/059d090b47f5462eade1f97bc1ea3ede/FLAG695f766bd [2019-09-10 02:47:46,374 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:46,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2019-09-10 02:47:46,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f393232b8/059d090b47f5462eade1f97bc1ea3ede/FLAG695f766bd [2019-09-10 02:47:46,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f393232b8/059d090b47f5462eade1f97bc1ea3ede [2019-09-10 02:47:46,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:46,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:46,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:46,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:46,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:46,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:46,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4a666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:46, skipping insertion in model container [2019-09-10 02:47:46,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:46" (1/1) ... [2019-09-10 02:47:46,755 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:46,821 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:47,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:47,279 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:47,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:47,454 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:47,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47 WrapperNode [2019-09-10 02:47:47,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:47,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:47,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:47,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:47,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... [2019-09-10 02:47:47,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... [2019-09-10 02:47:47,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... [2019-09-10 02:47:47,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... [2019-09-10 02:47:47,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... [2019-09-10 02:47:47,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... [2019-09-10 02:47:47,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... [2019-09-10 02:47:47,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:47,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:47,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:47,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:47,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:47:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:47:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:47:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:47:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:47:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:47:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:47:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:47:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:48,719 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:48,720 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:48,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:48 BoogieIcfgContainer [2019-09-10 02:47:48,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:48,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:48,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:48,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:48,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:46" (1/3) ... [2019-09-10 02:47:48,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374fb00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:48, skipping insertion in model container [2019-09-10 02:47:48,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:47" (2/3) ... [2019-09-10 02:47:48,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374fb00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:48, skipping insertion in model container [2019-09-10 02:47:48,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:48" (3/3) ... [2019-09-10 02:47:48,730 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2019-09-10 02:47:48,741 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:48,750 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:48,767 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:48,797 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:48,798 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:48,798 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:48,798 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:48,798 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:48,798 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:48,799 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:48,799 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:48,816 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-09-10 02:47:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:48,829 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:48,830 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:48,833 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:48,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:48,839 INFO L82 PathProgramCache]: Analyzing trace with hash 591069479, now seen corresponding path program 1 times [2019-09-10 02:47:48,841 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:48,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:48,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:48,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:48,890 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:49,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:49,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:49,233 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:49,239 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:49,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:49,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:49,259 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2019-09-10 02:47:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:49,294 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2019-09-10 02:47:49,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:49,296 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:49,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:49,308 INFO L225 Difference]: With dead ends: 120 [2019-09-10 02:47:49,308 INFO L226 Difference]: Without dead ends: 109 [2019-09-10 02:47:49,310 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:49,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-09-10 02:47:49,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-09-10 02:47:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-09-10 02:47:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2019-09-10 02:47:49,364 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 46 [2019-09-10 02:47:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:49,364 INFO L475 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2019-09-10 02:47:49,365 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2019-09-10 02:47:49,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:49,368 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:49,368 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:49,369 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:49,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1158422735, now seen corresponding path program 1 times [2019-09-10 02:47:49,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:49,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:49,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,371 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:49,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:49,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:49,473 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:49,476 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:49,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:49,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:49,478 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2019-09-10 02:47:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:49,494 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2019-09-10 02:47:49,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:49,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:49,497 INFO L225 Difference]: With dead ends: 100 [2019-09-10 02:47:49,497 INFO L226 Difference]: Without dead ends: 100 [2019-09-10 02:47:49,498 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:49,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-10 02:47:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-10 02:47:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-10 02:47:49,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2019-09-10 02:47:49,511 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 47 [2019-09-10 02:47:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:49,511 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2019-09-10 02:47:49,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:49,512 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2019-09-10 02:47:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:47:49,514 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:49,514 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:49,514 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:49,515 INFO L82 PathProgramCache]: Analyzing trace with hash -870171294, now seen corresponding path program 1 times [2019-09-10 02:47:49,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:49,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:49,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:49,517 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:49,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:49,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:49,707 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:49,708 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:49,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:49,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:49,709 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 7 states. [2019-09-10 02:47:50,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:50,012 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2019-09-10 02:47:50,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:50,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:47:50,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:50,014 INFO L225 Difference]: With dead ends: 100 [2019-09-10 02:47:50,015 INFO L226 Difference]: Without dead ends: 100 [2019-09-10 02:47:50,015 INFO L628 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 [2019-09-10 02:47:50,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-10 02:47:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-10 02:47:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-10 02:47:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2019-09-10 02:47:50,025 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 52 [2019-09-10 02:47:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:50,025 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2019-09-10 02:47:50,026 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2019-09-10 02:47:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 02:47:50,028 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:50,028 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:50,028 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:50,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:50,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1248327953, now seen corresponding path program 1 times [2019-09-10 02:47:50,029 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:50,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:50,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,031 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:50,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:50,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:50,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:47:50,149 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:50,150 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:47:50,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:47:50,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:47:50,151 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 5 states. [2019-09-10 02:47:50,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:50,653 INFO L93 Difference]: Finished difference Result 188 states and 219 transitions. [2019-09-10 02:47:50,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:50,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-09-10 02:47:50,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:50,656 INFO L225 Difference]: With dead ends: 188 [2019-09-10 02:47:50,659 INFO L226 Difference]: Without dead ends: 188 [2019-09-10 02:47:50,660 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:50,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-09-10 02:47:50,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 169. [2019-09-10 02:47:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-09-10 02:47:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 193 transitions. [2019-09-10 02:47:50,695 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 193 transitions. Word has length 60 [2019-09-10 02:47:50,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:50,696 INFO L475 AbstractCegarLoop]: Abstraction has 169 states and 193 transitions. [2019-09-10 02:47:50,696 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:47:50,696 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 193 transitions. [2019-09-10 02:47:50,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-10 02:47:50,704 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:50,705 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:50,705 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:50,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:50,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1574039554, now seen corresponding path program 1 times [2019-09-10 02:47:50,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:50,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:50,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:50,709 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:50,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:50,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:50,848 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:50,849 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:50,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:50,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:50,850 INFO L87 Difference]: Start difference. First operand 169 states and 193 transitions. Second operand 6 states. [2019-09-10 02:47:51,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:51,042 INFO L93 Difference]: Finished difference Result 299 states and 342 transitions. [2019-09-10 02:47:51,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:51,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2019-09-10 02:47:51,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:51,053 INFO L225 Difference]: With dead ends: 299 [2019-09-10 02:47:51,053 INFO L226 Difference]: Without dead ends: 299 [2019-09-10 02:47:51,054 INFO L628 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 [2019-09-10 02:47:51,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2019-09-10 02:47:51,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 293. [2019-09-10 02:47:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2019-09-10 02:47:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 336 transitions. [2019-09-10 02:47:51,102 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 336 transitions. Word has length 74 [2019-09-10 02:47:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:51,103 INFO L475 AbstractCegarLoop]: Abstraction has 293 states and 336 transitions. [2019-09-10 02:47:51,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:51,103 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 336 transitions. [2019-09-10 02:47:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 02:47:51,105 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:51,105 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:51,105 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:51,106 INFO L82 PathProgramCache]: Analyzing trace with hash -133122882, now seen corresponding path program 1 times [2019-09-10 02:47:51,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:51,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:51,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,109 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:51,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:51,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:51,227 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:51,227 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:51,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:51,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:51,228 INFO L87 Difference]: Start difference. First operand 293 states and 336 transitions. Second operand 7 states. [2019-09-10 02:47:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:51,842 INFO L93 Difference]: Finished difference Result 325 states and 386 transitions. [2019-09-10 02:47:51,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:47:51,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-09-10 02:47:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:51,848 INFO L225 Difference]: With dead ends: 325 [2019-09-10 02:47:51,849 INFO L226 Difference]: Without dead ends: 325 [2019-09-10 02:47:51,849 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:47:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-09-10 02:47:51,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 293. [2019-09-10 02:47:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2019-09-10 02:47:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 335 transitions. [2019-09-10 02:47:51,873 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 335 transitions. Word has length 78 [2019-09-10 02:47:51,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:51,874 INFO L475 AbstractCegarLoop]: Abstraction has 293 states and 335 transitions. [2019-09-10 02:47:51,874 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 335 transitions. [2019-09-10 02:47:51,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 02:47:51,876 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:51,876 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:51,876 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:51,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:51,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1769050262, now seen corresponding path program 1 times [2019-09-10 02:47:51,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:51,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:51,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,878 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:51,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:51,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:51,947 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:51,947 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:51,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:51,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:51,948 INFO L87 Difference]: Start difference. First operand 293 states and 335 transitions. Second operand 6 states. [2019-09-10 02:47:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:51,975 INFO L93 Difference]: Finished difference Result 303 states and 345 transitions. [2019-09-10 02:47:51,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:51,975 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-10 02:47:51,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:51,977 INFO L225 Difference]: With dead ends: 303 [2019-09-10 02:47:51,977 INFO L226 Difference]: Without dead ends: 303 [2019-09-10 02:47:51,978 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:51,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2019-09-10 02:47:51,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2019-09-10 02:47:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2019-09-10 02:47:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 345 transitions. [2019-09-10 02:47:51,989 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 345 transitions. Word has length 79 [2019-09-10 02:47:51,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:51,990 INFO L475 AbstractCegarLoop]: Abstraction has 303 states and 345 transitions. [2019-09-10 02:47:51,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 345 transitions. [2019-09-10 02:47:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 02:47:51,992 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:51,992 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:51,992 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:51,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1259577172, now seen corresponding path program 1 times [2019-09-10 02:47:51,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:51,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:51,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:51,994 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:52,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:52,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:47:52,100 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:52,101 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:47:52,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:47:52,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:52,102 INFO L87 Difference]: Start difference. First operand 303 states and 345 transitions. Second operand 8 states. [2019-09-10 02:47:52,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:52,143 INFO L93 Difference]: Finished difference Result 317 states and 359 transitions. [2019-09-10 02:47:52,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:52,148 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2019-09-10 02:47:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:52,152 INFO L225 Difference]: With dead ends: 317 [2019-09-10 02:47:52,153 INFO L226 Difference]: Without dead ends: 317 [2019-09-10 02:47:52,153 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:52,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-09-10 02:47:52,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 311. [2019-09-10 02:47:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2019-09-10 02:47:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 353 transitions. [2019-09-10 02:47:52,179 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 353 transitions. Word has length 79 [2019-09-10 02:47:52,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:52,180 INFO L475 AbstractCegarLoop]: Abstraction has 311 states and 353 transitions. [2019-09-10 02:47:52,180 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:47:52,180 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 353 transitions. [2019-09-10 02:47:52,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 02:47:52,183 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:52,183 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:52,184 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:52,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:52,184 INFO L82 PathProgramCache]: Analyzing trace with hash -750526669, now seen corresponding path program 1 times [2019-09-10 02:47:52,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:52,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:52,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,186 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:52,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:52,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:52,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:47:52,270 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:52,270 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:47:52,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:47:52,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:52,271 INFO L87 Difference]: Start difference. First operand 311 states and 353 transitions. Second operand 4 states. [2019-09-10 02:47:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:52,474 INFO L93 Difference]: Finished difference Result 656 states and 779 transitions. [2019-09-10 02:47:52,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:47:52,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2019-09-10 02:47:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:52,478 INFO L225 Difference]: With dead ends: 656 [2019-09-10 02:47:52,479 INFO L226 Difference]: Without dead ends: 656 [2019-09-10 02:47:52,479 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:52,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2019-09-10 02:47:52,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 433. [2019-09-10 02:47:52,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-09-10 02:47:52,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 488 transitions. [2019-09-10 02:47:52,501 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 488 transitions. Word has length 79 [2019-09-10 02:47:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:52,501 INFO L475 AbstractCegarLoop]: Abstraction has 433 states and 488 transitions. [2019-09-10 02:47:52,502 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:47:52,502 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 488 transitions. [2019-09-10 02:47:52,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:47:52,504 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:52,504 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:52,504 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:52,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:52,505 INFO L82 PathProgramCache]: Analyzing trace with hash 893739545, now seen corresponding path program 1 times [2019-09-10 02:47:52,505 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:52,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:52,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:52,506 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:53,085 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:47:53,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:47:53 BoogieIcfgContainer [2019-09-10 02:47:53,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:47:53,261 INFO L168 Benchmark]: Toolchain (without parser) took 6522.79 ms. Allocated memory was 133.7 MB in the beginning and 321.4 MB in the end (delta: 187.7 MB). Free memory was 88.6 MB in the beginning and 155.1 MB in the end (delta: -66.5 MB). Peak memory consumption was 121.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:53,262 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:47:53,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.51 ms. Allocated memory was 133.7 MB in the beginning and 198.2 MB in the end (delta: 64.5 MB). Free memory was 88.4 MB in the beginning and 163.3 MB in the end (delta: -74.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:53,264 INFO L168 Benchmark]: Boogie Preprocessor took 105.25 ms. Allocated memory is still 198.2 MB. Free memory was 163.3 MB in the beginning and 158.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:53,266 INFO L168 Benchmark]: RCFGBuilder took 1159.19 ms. Allocated memory was 198.2 MB in the beginning and 224.4 MB in the end (delta: 26.2 MB). Free memory was 158.9 MB in the beginning and 192.2 MB in the end (delta: -33.3 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:53,267 INFO L168 Benchmark]: TraceAbstraction took 4535.77 ms. Allocated memory was 224.4 MB in the beginning and 321.4 MB in the end (delta: 97.0 MB). Free memory was 192.2 MB in the beginning and 155.1 MB in the end (delta: 37.1 MB). Peak memory consumption was 134.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:53,271 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.51 ms. Allocated memory was 133.7 MB in the beginning and 198.2 MB in the end (delta: 64.5 MB). Free memory was 88.4 MB in the beginning and 163.3 MB in the end (delta: -74.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.25 ms. Allocated memory is still 198.2 MB. Free memory was 163.3 MB in the beginning and 158.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1159.19 ms. Allocated memory was 198.2 MB in the beginning and 224.4 MB in the end (delta: 26.2 MB). Free memory was 158.9 MB in the beginning and 192.2 MB in the end (delta: -33.3 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4535.77 ms. Allocated memory was 224.4 MB in the beginning and 321.4 MB in the end (delta: 97.0 MB). Free memory was 192.2 MB in the beginning and 155.1 MB in the end (delta: 37.1 MB). Peak memory consumption was 134.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 514]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int waterLevel = 1; [L525] int methaneLevelCritical = 0; [L689] int pumpRunning = 0; [L690] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] int retValue_acc ; [L905] retValue_acc = 1 [L906] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] int splverifierCounter ; [L621] int tmp ; [L622] int tmp___0 ; [L623] int tmp___1 ; [L624] int tmp___2 ; [L627] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L629] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L631] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L637] tmp = __VERIFIER_nondet_int() [L639] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L641] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] COND TRUE waterLevel < 2 [L543] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L641] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L647] tmp___0 = __VERIFIER_nondet_int() [L649] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=8, waterLevel=2] [L651] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] COND FALSE !(\read(methaneLevelCritical)) [L557] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L651] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=8, waterLevel=2] [L657] tmp___2 = __VERIFIER_nondet_int() [L659] COND FALSE !(\read(tmp___2)) [L665] tmp___1 = __VERIFIER_nondet_int() [L667] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=8, tmp___1=8, tmp___2=0, waterLevel=2] [L674] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L697] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L704] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L706] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L726] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L729] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L823] int retValue_acc ; [L824] int tmp ; [L825] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND FALSE !(waterLevel < 2) [L611] retValue_acc = 0 [L612] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L829] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] tmp = isHighWaterSensorDry() [L831] COND FALSE !(\read(tmp)) [L834] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L836] retValue_acc = tmp___0 [L837] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L731] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] tmp = isHighWaterLevel() [L733] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L735] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L754] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L735] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L706] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L712] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L851] int tmp ; [L852] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L563] int retValue_acc ; [L566] retValue_acc = methaneLevelCritical [L567] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L856] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] tmp = isMethaneLevelCritical() [L858] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L860] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L778] int retValue_acc ; [L781] retValue_acc = pumpRunning [L782] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L860] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L860] tmp___0 = isPumpRunning() [L862] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L864] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 219 locations, 1 error locations. UNSAFE Result, 4.4s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1125 SDtfs, 645 SDslu, 2306 SDs, 0 SdLazy, 833 SolverSat, 190 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=433occurred in iteration=9, 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 286 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 677 NumberOfCodeBlocks, 677 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 585 ConstructedInterpolants, 0 QuantifiedInterpolants, 68118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...