/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:32:33,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:32:33,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:32:33,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:32:33,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:32:33,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:32:33,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:32:33,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:32:33,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:32:33,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:32:33,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:32:33,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:32:33,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:32:33,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:32:33,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:32:33,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:32:33,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:32:33,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:32:33,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:32:33,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:32:33,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:32:33,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:32:33,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:32:33,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:32:33,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:32:33,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:32:33,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:32:33,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:32:33,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:32:33,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:32:33,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:32:33,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:32:33,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:32:33,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:32:33,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:32:33,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:32:33,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:32:33,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:32:33,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:32:33,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:32:33,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:32:33,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:32:33,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:32:33,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:32:33,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:32:33,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:32:33,666 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:32:33,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:32:33,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:32:33,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:32:33,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:32:33,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:32:33,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:32:33,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:32:33,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:32:33,668 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:32:33,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:32:33,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:32:33,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:32:33,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:32:33,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:32:33,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:32:33,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:32:33,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:32:33,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:32:33,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:32:33,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:32:33,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:32:33,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:32:33,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:32:33,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:32:33,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:32:33,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:32:33,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:32:33,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:32:33,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:32:33,930 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:32:33,931 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-17 11:32:33,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74d911db5/afb2e8a2dce04f4698f6e71fadc9415d/FLAGa24269fd2 [2020-07-17 11:32:34,547 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:32:34,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-17 11:32:34,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74d911db5/afb2e8a2dce04f4698f6e71fadc9415d/FLAGa24269fd2 [2020-07-17 11:32:34,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74d911db5/afb2e8a2dce04f4698f6e71fadc9415d [2020-07-17 11:32:34,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:32:34,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:32:34,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:32:34,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:32:34,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:32:34,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:32:34" (1/1) ... [2020-07-17 11:32:34,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50229795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:34, skipping insertion in model container [2020-07-17 11:32:34,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:32:34" (1/1) ... [2020-07-17 11:32:34,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:32:34,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:32:35,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:32:35,380 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:32:35,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:32:35,493 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:32:35,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35 WrapperNode [2020-07-17 11:32:35,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:32:35,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:32:35,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:32:35,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:32:35,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (1/1) ... [2020-07-17 11:32:35,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (1/1) ... [2020-07-17 11:32:35,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (1/1) ... [2020-07-17 11:32:35,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (1/1) ... [2020-07-17 11:32:35,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (1/1) ... [2020-07-17 11:32:35,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (1/1) ... [2020-07-17 11:32:35,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (1/1) ... [2020-07-17 11:32:35,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:32:35,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:32:35,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:32:35,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:32:35,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (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 [2020-07-17 11:32:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:32:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:32:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:32:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:32:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:32:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:32:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:32:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:32:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:32:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 11:32:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 11:32:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:32:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:32:35,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:32:35,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 11:32:35,655 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:32:35,655 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:32:35,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:32:35,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:32:35,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:32:35,656 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:32:35,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 11:32:35,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 11:32:35,657 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 11:32:35,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:32:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:32:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:32:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:32:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:32:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:32:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:32:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:32:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:32:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:32:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:32:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:32:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:32:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:32:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:32:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:32:35,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:32:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:32:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:32:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:32:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:32:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 11:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 11:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:32:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:32:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:32:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:32:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:32:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 11:32:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 11:32:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 11:32:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:32:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:32:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:32:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:32:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:32:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:32:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:32:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:32:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:32:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:32:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:32:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:32:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:32:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:32:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:32:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:32:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:32:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:32:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:32:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:32:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:32:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:32:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:32:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:32:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:32:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:32:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:32:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:32:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:32:36,687 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:32:36,687 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:32:36,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:32:36 BoogieIcfgContainer [2020-07-17 11:32:36,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:32:36,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:32:36,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:32:36,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:32:36,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:32:34" (1/3) ... [2020-07-17 11:32:36,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434cea97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:32:36, skipping insertion in model container [2020-07-17 11:32:36,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:35" (2/3) ... [2020-07-17 11:32:36,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434cea97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:32:36, skipping insertion in model container [2020-07-17 11:32:36,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:32:36" (3/3) ... [2020-07-17 11:32:36,700 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-07-17 11:32:36,710 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:32:36,718 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:32:36,731 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:32:36,755 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:32:36,755 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:32:36,755 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:32:36,756 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:32:36,756 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:32:36,756 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:32:36,756 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:32:36,757 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:32:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-17 11:32:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:32:36,789 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:36,790 INFO L422 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] [2020-07-17 11:32:36,790 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:36,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:36,796 INFO L82 PathProgramCache]: Analyzing trace with hash 640895003, now seen corresponding path program 1 times [2020-07-17 11:32:36,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:36,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594934332] [2020-07-17 11:32:36,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,402 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:37,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594934332] [2020-07-17 11:32:37,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:37,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:32:37,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255403279] [2020-07-17 11:32:37,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:32:37,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:37,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:32:37,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:32:37,519 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-07-17 11:32:38,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:38,632 INFO L93 Difference]: Finished difference Result 323 states and 421 transitions. [2020-07-17 11:32:38,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:32:38,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-17 11:32:38,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:38,649 INFO L225 Difference]: With dead ends: 323 [2020-07-17 11:32:38,649 INFO L226 Difference]: Without dead ends: 174 [2020-07-17 11:32:38,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:32:38,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-07-17 11:32:38,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2020-07-17 11:32:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-17 11:32:38,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 165 transitions. [2020-07-17 11:32:38,743 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 165 transitions. Word has length 52 [2020-07-17 11:32:38,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:38,744 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 165 transitions. [2020-07-17 11:32:38,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:32:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 165 transitions. [2020-07-17 11:32:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-17 11:32:38,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:38,748 INFO L422 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] [2020-07-17 11:32:38,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:32:38,749 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:38,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:38,749 INFO L82 PathProgramCache]: Analyzing trace with hash -61253498, now seen corresponding path program 1 times [2020-07-17 11:32:38,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:38,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569225496] [2020-07-17 11:32:38,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,104 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:39,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:39,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569225496] [2020-07-17 11:32:39,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:39,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:32:39,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306903486] [2020-07-17 11:32:39,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:32:39,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:39,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:32:39,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:32:39,156 INFO L87 Difference]: Start difference. First operand 140 states and 165 transitions. Second operand 4 states. [2020-07-17 11:32:39,565 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:32:40,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:40,383 INFO L93 Difference]: Finished difference Result 250 states and 304 transitions. [2020-07-17 11:32:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:32:40,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-17 11:32:40,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:40,387 INFO L225 Difference]: With dead ends: 250 [2020-07-17 11:32:40,387 INFO L226 Difference]: Without dead ends: 158 [2020-07-17 11:32:40,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:32:40,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-07-17 11:32:40,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 131. [2020-07-17 11:32:40,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-17 11:32:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2020-07-17 11:32:40,442 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 53 [2020-07-17 11:32:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:40,442 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2020-07-17 11:32:40,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:32:40,442 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2020-07-17 11:32:40,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-17 11:32:40,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:40,445 INFO L422 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] [2020-07-17 11:32:40,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:32:40,445 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:40,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:40,446 INFO L82 PathProgramCache]: Analyzing trace with hash 2048791527, now seen corresponding path program 1 times [2020-07-17 11:32:40,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:40,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150516576] [2020-07-17 11:32:40,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,756 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:40,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150516576] [2020-07-17 11:32:40,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:40,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:40,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386655292] [2020-07-17 11:32:40,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:40,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:40,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:40,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:40,881 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 8 states. [2020-07-17 11:32:41,227 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:41,544 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:41,778 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:41,999 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:42,685 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:32:44,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:44,456 INFO L93 Difference]: Finished difference Result 451 states and 558 transitions. [2020-07-17 11:32:44,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:32:44,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-17 11:32:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:44,466 INFO L225 Difference]: With dead ends: 451 [2020-07-17 11:32:44,466 INFO L226 Difference]: Without dead ends: 344 [2020-07-17 11:32:44,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-17 11:32:44,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-07-17 11:32:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 286. [2020-07-17 11:32:44,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-17 11:32:44,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 345 transitions. [2020-07-17 11:32:44,565 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 345 transitions. Word has length 57 [2020-07-17 11:32:44,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:44,565 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 345 transitions. [2020-07-17 11:32:44,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:44,566 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 345 transitions. [2020-07-17 11:32:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-17 11:32:44,569 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:44,569 INFO L422 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] [2020-07-17 11:32:44,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:32:44,569 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:44,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:44,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1441609457, now seen corresponding path program 1 times [2020-07-17 11:32:44,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:44,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111864204] [2020-07-17 11:32:44,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,865 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:44,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111864204] [2020-07-17 11:32:44,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:44,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:44,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503393843] [2020-07-17 11:32:44,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:44,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:44,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:44,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:44,969 INFO L87 Difference]: Start difference. First operand 286 states and 345 transitions. Second operand 8 states. [2020-07-17 11:32:45,301 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:46,629 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:46,975 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:47,241 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:47,453 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:48,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:48,102 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-07-17 11:32:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 11:32:48,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-17 11:32:48,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:48,108 INFO L225 Difference]: With dead ends: 878 [2020-07-17 11:32:48,109 INFO L226 Difference]: Without dead ends: 616 [2020-07-17 11:32:48,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:32:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-07-17 11:32:48,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 549. [2020-07-17 11:32:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-07-17 11:32:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 675 transitions. [2020-07-17 11:32:48,276 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 675 transitions. Word has length 63 [2020-07-17 11:32:48,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:48,277 INFO L479 AbstractCegarLoop]: Abstraction has 549 states and 675 transitions. [2020-07-17 11:32:48,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:48,277 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 675 transitions. [2020-07-17 11:32:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-17 11:32:48,282 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:48,282 INFO L422 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] [2020-07-17 11:32:48,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:32:48,283 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:48,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:48,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1167704009, now seen corresponding path program 1 times [2020-07-17 11:32:48,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:48,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927043701] [2020-07-17 11:32:48,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,521 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:48,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927043701] [2020-07-17 11:32:48,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:48,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:32:48,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293775302] [2020-07-17 11:32:48,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:32:48,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:48,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:32:48,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:32:48,596 INFO L87 Difference]: Start difference. First operand 549 states and 675 transitions. Second operand 6 states. [2020-07-17 11:32:48,876 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:50,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:50,228 INFO L93 Difference]: Finished difference Result 1300 states and 1694 transitions. [2020-07-17 11:32:50,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 11:32:50,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-17 11:32:50,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:50,234 INFO L225 Difference]: With dead ends: 1300 [2020-07-17 11:32:50,234 INFO L226 Difference]: Without dead ends: 775 [2020-07-17 11:32:50,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-17 11:32:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-07-17 11:32:50,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 705. [2020-07-17 11:32:50,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-07-17 11:32:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 860 transitions. [2020-07-17 11:32:50,361 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 860 transitions. Word has length 67 [2020-07-17 11:32:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:50,361 INFO L479 AbstractCegarLoop]: Abstraction has 705 states and 860 transitions. [2020-07-17 11:32:50,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:32:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 860 transitions. [2020-07-17 11:32:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-17 11:32:50,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:50,364 INFO L422 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] [2020-07-17 11:32:50,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:32:50,364 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:50,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1951258889, now seen corresponding path program 1 times [2020-07-17 11:32:50,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:50,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628945555] [2020-07-17 11:32:50,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:50,533 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:32:50,533 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:32:50,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:32:50,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:32:50 BoogieIcfgContainer [2020-07-17 11:32:50,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:32:50,692 INFO L168 Benchmark]: Toolchain (without parser) took 15822.44 ms. Allocated memory was 139.5 MB in the beginning and 505.9 MB in the end (delta: 366.5 MB). Free memory was 101.6 MB in the beginning and 175.8 MB in the end (delta: -74.2 MB). Peak memory consumption was 292.3 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:50,693 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:32:50,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.50 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.2 MB in the beginning and 172.0 MB in the end (delta: -70.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:50,695 INFO L168 Benchmark]: Boogie Preprocessor took 85.47 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 167.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:50,696 INFO L168 Benchmark]: RCFGBuilder took 1112.66 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 192.3 MB in the end (delta: -25.2 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:50,697 INFO L168 Benchmark]: TraceAbstraction took 13996.98 ms. Allocated memory was 235.4 MB in the beginning and 505.9 MB in the end (delta: 270.5 MB). Free memory was 192.3 MB in the beginning and 175.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 287.0 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:50,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 621.50 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.2 MB in the beginning and 172.0 MB in the end (delta: -70.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.47 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 167.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1112.66 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 192.3 MB in the end (delta: -25.2 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13996.98 ms. Allocated memory was 235.4 MB in the beginning and 505.9 MB in the end (delta: 270.5 MB). Free memory was 192.3 MB in the beginning and 175.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 287.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=168, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=144, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int retValue_acc ; [L550] 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] [L554] 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] [L555] 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] [L556] 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] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] 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] [L556] 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] [L556] tmp = valid_product() [L558] 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] [L560] 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] [L561] 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] [L540] 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] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] 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] [L164] 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] [L166] 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] [L172] tmp = __VERIFIER_nondet_int() [L174] 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] [L176] 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] [L66] COND TRUE waterLevel < 2 [L67] 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] [L176] 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] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\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=0, waterLevel=2] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___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, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L202] CALL stopSystem() 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] [L426] COND FALSE !(\read(pumpRunning)) 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] [L433] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L202] RET stopSystem() 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=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L209] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L233] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L240] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L248] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L446] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L452] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L452] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L456] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L456] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L462] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L977] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 640 SDtfs, 1471 SDslu, 410 SDs, 0 SdLazy, 2274 SolverSat, 929 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=705occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 256 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 82182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...