/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 --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 20:55:40,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 20:55:40,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 20:55:40,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 20:55:40,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 20:55:40,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 20:55:40,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 20:55:40,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 20:55:40,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 20:55:40,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 20:55:40,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 20:55:40,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 20:55:40,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 20:55:40,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 20:55:40,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 20:55:40,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 20:55:40,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 20:55:40,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 20:55:40,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 20:55:40,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 20:55:40,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 20:55:40,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 20:55:40,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 20:55:40,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 20:55:40,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 20:55:40,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 20:55:40,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 20:55:40,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 20:55:40,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 20:55:40,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 20:55:40,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 20:55:40,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 20:55:40,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 20:55:40,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 20:55:40,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 20:55:40,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 20:55:40,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 20:55:40,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 20:55:40,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 20:55:40,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 20:55:40,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 20:55:40,695 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 [2020-07-19 20:55:40,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 20:55:40,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 20:55:40,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 20:55:40,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 20:55:40,714 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 20:55:40,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 20:55:40,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 20:55:40,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 20:55:40,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 20:55:40,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 20:55:40,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 20:55:40,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 20:55:40,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 20:55:40,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 20:55:40,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 20:55:40,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 20:55:40,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 20:55:40,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 20:55:40,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 20:55:40,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 20:55:40,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 20:55:40,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 20:55:40,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 20:55:40,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 20:55:40,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 20:55:40,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 20:55:40,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 20:55:40,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 20:55:40,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 20:55:40,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 20:55:41,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 20:55:41,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 20:55:41,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 20:55:41,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 20:55:41,030 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 20:55:41,030 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-07-19 20:55:41,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba342d90/944cf1b01fdd48b8a4a0a3a709828983/FLAG46b832f4d [2020-07-19 20:55:41,572 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 20:55:41,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-07-19 20:55:41,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba342d90/944cf1b01fdd48b8a4a0a3a709828983/FLAG46b832f4d [2020-07-19 20:55:41,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba342d90/944cf1b01fdd48b8a4a0a3a709828983 [2020-07-19 20:55:41,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 20:55:41,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 20:55:41,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 20:55:41,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 20:55:41,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 20:55:41,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:55:41" (1/1) ... [2020-07-19 20:55:41,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0c2f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:41, skipping insertion in model container [2020-07-19 20:55:41,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:55:41" (1/1) ... [2020-07-19 20:55:41,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 20:55:42,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 20:55:42,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:55:42,423 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 20:55:42,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:55:42,560 INFO L208 MainTranslator]: Completed translation [2020-07-19 20:55:42,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42 WrapperNode [2020-07-19 20:55:42,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 20:55:42,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 20:55:42,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 20:55:42,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 20:55:42,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (1/1) ... [2020-07-19 20:55:42,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (1/1) ... [2020-07-19 20:55:42,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (1/1) ... [2020-07-19 20:55:42,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (1/1) ... [2020-07-19 20:55:42,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (1/1) ... [2020-07-19 20:55:42,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (1/1) ... [2020-07-19 20:55:42,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (1/1) ... [2020-07-19 20:55:42,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 20:55:42,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 20:55:42,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 20:55:42,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 20:55:42,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (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 [2020-07-19 20:55:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 20:55:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 20:55:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 20:55:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 20:55:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 20:55:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 20:55:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 20:55:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 20:55:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 20:55:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 20:55:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 20:55:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-19 20:55:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 20:55:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 20:55:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 20:55:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 20:55:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 20:55:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 20:55:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 20:55:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 20:55:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 20:55:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 20:55:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 20:55:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 20:55:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 20:55:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 20:55:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 20:55:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 20:55:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 20:55:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 20:55:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 20:55:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 20:55:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 20:55:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 20:55:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 20:55:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-19 20:55:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 20:55:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 20:55:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 20:55:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 20:55:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 20:55:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 20:55:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 20:55:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 20:55:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 20:55:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 20:55:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 20:55:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 20:55:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 20:55:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 20:55:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 20:55:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 20:55:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 20:55:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 20:55:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 20:55:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 20:55:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 20:55:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 20:55:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 20:55:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 20:55:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 20:55:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 20:55:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 20:55:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 20:55:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-19 20:55:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 20:55:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 20:55:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 20:55:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 20:55:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 20:55:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-19 20:55:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 20:55:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 20:55:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 20:55:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 20:55:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 20:55:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 20:55:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 20:55:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 20:55:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 20:55:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 20:55:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 20:55:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 20:55:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 20:55:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 20:55:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 20:55:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 20:55:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 20:55:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 20:55:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 20:55:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 20:55:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 20:55:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 20:55:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 20:55:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 20:55:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 20:55:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 20:55:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 20:55:43,767 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 20:55:43,767 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 20:55:43,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:55:43 BoogieIcfgContainer [2020-07-19 20:55:43,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 20:55:43,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 20:55:43,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 20:55:43,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 20:55:43,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:55:41" (1/3) ... [2020-07-19 20:55:43,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782de5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:55:43, skipping insertion in model container [2020-07-19 20:55:43,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:55:42" (2/3) ... [2020-07-19 20:55:43,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782de5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:55:43, skipping insertion in model container [2020-07-19 20:55:43,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:55:43" (3/3) ... [2020-07-19 20:55:43,780 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-07-19 20:55:43,790 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 20:55:43,798 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 20:55:43,809 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 20:55:43,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 20:55:43,834 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 20:55:43,834 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 20:55:43,834 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 20:55:43,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 20:55:43,835 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 20:55:43,835 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 20:55:43,836 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 20:55:43,860 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-07-19 20:55:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 20:55:43,870 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:55:43,871 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] [2020-07-19 20:55:43,871 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:55:43,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:55:43,877 INFO L82 PathProgramCache]: Analyzing trace with hash 616057763, now seen corresponding path program 1 times [2020-07-19 20:55:43,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:55:43,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663739287] [2020-07-19 20:55:43,887 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:55:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,467 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:55:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:55:44,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663739287] [2020-07-19 20:55:44,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:55:44,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 20:55:44,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343119931] [2020-07-19 20:55:44,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 20:55:44,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:55:44,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 20:55:44,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 20:55:44,583 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2020-07-19 20:55:45,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:55:45,793 INFO L93 Difference]: Finished difference Result 343 states and 450 transitions. [2020-07-19 20:55:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 20:55:45,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 20:55:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:55:45,810 INFO L225 Difference]: With dead ends: 343 [2020-07-19 20:55:45,810 INFO L226 Difference]: Without dead ends: 185 [2020-07-19 20:55:45,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 20:55:45,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-07-19 20:55:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2020-07-19 20:55:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-07-19 20:55:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2020-07-19 20:55:45,911 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2020-07-19 20:55:45,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:55:45,912 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2020-07-19 20:55:45,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 20:55:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2020-07-19 20:55:45,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 20:55:45,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:55:45,916 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] [2020-07-19 20:55:45,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 20:55:45,916 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:55:45,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:55:45,917 INFO L82 PathProgramCache]: Analyzing trace with hash -2016430514, now seen corresponding path program 1 times [2020-07-19 20:55:45,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:55:45,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449311092] [2020-07-19 20:55:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:55:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,254 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:55:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:55:46,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449311092] [2020-07-19 20:55:46,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:55:46,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 20:55:46,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369638428] [2020-07-19 20:55:46,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 20:55:46,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:55:46,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 20:55:46,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:55:46,298 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 4 states. [2020-07-19 20:55:46,764 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:55:47,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:55:47,698 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2020-07-19 20:55:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 20:55:47,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 20:55:47,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:55:47,703 INFO L225 Difference]: With dead ends: 270 [2020-07-19 20:55:47,703 INFO L226 Difference]: Without dead ends: 169 [2020-07-19 20:55:47,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 20:55:47,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-07-19 20:55:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2020-07-19 20:55:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-19 20:55:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2020-07-19 20:55:47,767 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2020-07-19 20:55:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:55:47,767 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2020-07-19 20:55:47,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 20:55:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2020-07-19 20:55:47,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 20:55:47,770 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:55:47,770 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] [2020-07-19 20:55:47,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 20:55:47,770 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:55:47,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:55:47,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1603631393, now seen corresponding path program 1 times [2020-07-19 20:55:47,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:55:47,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651148668] [2020-07-19 20:55:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:55:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,077 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:55:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:55:48,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651148668] [2020-07-19 20:55:48,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:55:48,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:55:48,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178106642] [2020-07-19 20:55:48,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:55:48,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:55:48,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:55:48,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:55:48,171 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 8 states. [2020-07-19 20:55:48,547 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:55:48,866 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:55:49,094 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:49,317 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:49,989 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:55:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:55:51,959 INFO L93 Difference]: Finished difference Result 476 states and 596 transitions. [2020-07-19 20:55:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 20:55:51,960 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-19 20:55:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:55:51,966 INFO L225 Difference]: With dead ends: 476 [2020-07-19 20:55:51,966 INFO L226 Difference]: Without dead ends: 360 [2020-07-19 20:55:51,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 20:55:51,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-07-19 20:55:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 298. [2020-07-19 20:55:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-19 20:55:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2020-07-19 20:55:52,067 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2020-07-19 20:55:52,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:55:52,068 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2020-07-19 20:55:52,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:55:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2020-07-19 20:55:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 20:55:52,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:55:52,071 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] [2020-07-19 20:55:52,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 20:55:52,071 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:55:52,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:55:52,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1180849517, now seen corresponding path program 1 times [2020-07-19 20:55:52,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:55:52,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899582456] [2020-07-19 20:55:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:55:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,345 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:55:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:55:52,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899582456] [2020-07-19 20:55:52,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:55:52,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:55:52,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203111509] [2020-07-19 20:55:52,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:55:52,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:55:52,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:55:52,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:55:52,427 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand 8 states. [2020-07-19 20:55:52,793 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:55:53,591 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:54,005 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:55:54,293 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:54,538 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:55,125 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:55:56,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:55:56,250 INFO L93 Difference]: Finished difference Result 960 states and 1249 transitions. [2020-07-19 20:55:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 20:55:56,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-19 20:55:56,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:55:56,257 INFO L225 Difference]: With dead ends: 960 [2020-07-19 20:55:56,257 INFO L226 Difference]: Without dead ends: 686 [2020-07-19 20:55:56,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-19 20:55:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-07-19 20:55:56,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 551. [2020-07-19 20:55:56,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-07-19 20:55:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 678 transitions. [2020-07-19 20:55:56,395 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 678 transitions. Word has length 57 [2020-07-19 20:55:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:55:56,396 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 678 transitions. [2020-07-19 20:55:56,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:55:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 678 transitions. [2020-07-19 20:55:56,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-19 20:55:56,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:55:56,400 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] [2020-07-19 20:55:56,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 20:55:56,400 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:55:56,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:55:56,401 INFO L82 PathProgramCache]: Analyzing trace with hash -687352489, now seen corresponding path program 1 times [2020-07-19 20:55:56,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:55:56,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662383731] [2020-07-19 20:55:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:55:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,653 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:55:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:55:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:55:56,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662383731] [2020-07-19 20:55:56,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:55:56,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:55:56,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652176929] [2020-07-19 20:55:56,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:55:56,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:55:56,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:55:56,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:55:56,765 INFO L87 Difference]: Start difference. First operand 551 states and 678 transitions. Second operand 9 states. [2020-07-19 20:55:57,159 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:55:58,042 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:58,315 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:58,543 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:55:59,120 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:55:59,443 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:00,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:56:00,534 INFO L93 Difference]: Finished difference Result 1523 states and 2048 transitions. [2020-07-19 20:56:00,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 20:56:00,535 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-07-19 20:56:00,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:56:00,543 INFO L225 Difference]: With dead ends: 1523 [2020-07-19 20:56:00,543 INFO L226 Difference]: Without dead ends: 996 [2020-07-19 20:56:00,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-19 20:56:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2020-07-19 20:56:00,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 815. [2020-07-19 20:56:00,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2020-07-19 20:56:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1007 transitions. [2020-07-19 20:56:00,692 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1007 transitions. Word has length 61 [2020-07-19 20:56:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:56:00,693 INFO L479 AbstractCegarLoop]: Abstraction has 815 states and 1007 transitions. [2020-07-19 20:56:00,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:56:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1007 transitions. [2020-07-19 20:56:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 20:56:00,696 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:56:00,696 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:56:00,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 20:56:00,697 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:56:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:56:00,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1185420344, now seen corresponding path program 1 times [2020-07-19 20:56:00,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:56:00,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578216806] [2020-07-19 20:56:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:56:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:00,949 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:56:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:56:01,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578216806] [2020-07-19 20:56:01,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:56:01,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:56:01,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461010848] [2020-07-19 20:56:01,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:56:01,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:56:01,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:56:01,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:56:01,112 INFO L87 Difference]: Start difference. First operand 815 states and 1007 transitions. Second operand 9 states. [2020-07-19 20:56:02,215 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:56:02,466 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:56:02,704 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:02,963 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:56:04,087 INFO L93 Difference]: Finished difference Result 1863 states and 2473 transitions. [2020-07-19 20:56:04,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 20:56:04,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-07-19 20:56:04,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:56:04,101 INFO L225 Difference]: With dead ends: 1863 [2020-07-19 20:56:04,101 INFO L226 Difference]: Without dead ends: 1072 [2020-07-19 20:56:04,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:56:04,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-07-19 20:56:04,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 841. [2020-07-19 20:56:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-07-19 20:56:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1035 transitions. [2020-07-19 20:56:04,277 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1035 transitions. Word has length 88 [2020-07-19 20:56:04,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:56:04,277 INFO L479 AbstractCegarLoop]: Abstraction has 841 states and 1035 transitions. [2020-07-19 20:56:04,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:56:04,278 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1035 transitions. [2020-07-19 20:56:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 20:56:04,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:56:04,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:56:04,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 20:56:04,281 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:56:04,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:56:04,282 INFO L82 PathProgramCache]: Analyzing trace with hash -910660730, now seen corresponding path program 1 times [2020-07-19 20:56:04,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:56:04,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787131536] [2020-07-19 20:56:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:56:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,566 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:56:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:56:04,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787131536] [2020-07-19 20:56:04,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:56:04,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 20:56:04,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823220733] [2020-07-19 20:56:04,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 20:56:04,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:56:04,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 20:56:04,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-19 20:56:04,737 INFO L87 Difference]: Start difference. First operand 841 states and 1035 transitions. Second operand 11 states. [2020-07-19 20:56:05,235 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:56:05,459 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:05,687 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:06,384 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:06,650 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:06,911 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:56:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:56:08,146 INFO L93 Difference]: Finished difference Result 1917 states and 2592 transitions. [2020-07-19 20:56:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 20:56:08,147 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-07-19 20:56:08,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:56:08,154 INFO L225 Difference]: With dead ends: 1917 [2020-07-19 20:56:08,155 INFO L226 Difference]: Without dead ends: 1100 [2020-07-19 20:56:08,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-19 20:56:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-07-19 20:56:08,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 857. [2020-07-19 20:56:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2020-07-19 20:56:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1051 transitions. [2020-07-19 20:56:08,313 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1051 transitions. Word has length 88 [2020-07-19 20:56:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:56:08,313 INFO L479 AbstractCegarLoop]: Abstraction has 857 states and 1051 transitions. [2020-07-19 20:56:08,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 20:56:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1051 transitions. [2020-07-19 20:56:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 20:56:08,317 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:56:08,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:56:08,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 20:56:08,318 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:56:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:56:08,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1039639525, now seen corresponding path program 1 times [2020-07-19 20:56:08,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:56:08,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506766669] [2020-07-19 20:56:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:56:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,683 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:56:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:56:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:56:08,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506766669] [2020-07-19 20:56:08,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:56:08,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 20:56:08,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703489562] [2020-07-19 20:56:08,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 20:56:08,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:56:08,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 20:56:08,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:56:08,879 INFO L87 Difference]: Start difference. First operand 857 states and 1051 transitions. Second operand 7 states. [2020-07-19 20:56:09,270 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:56:09,695 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:56:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:56:12,160 INFO L93 Difference]: Finished difference Result 2846 states and 3865 transitions. [2020-07-19 20:56:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 20:56:12,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-07-19 20:56:12,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:56:12,174 INFO L225 Difference]: With dead ends: 2846 [2020-07-19 20:56:12,174 INFO L226 Difference]: Without dead ends: 2013 [2020-07-19 20:56:12,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-19 20:56:12,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2020-07-19 20:56:12,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1711. [2020-07-19 20:56:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1711 states. [2020-07-19 20:56:12,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2117 transitions. [2020-07-19 20:56:12,588 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2117 transitions. Word has length 88 [2020-07-19 20:56:12,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:56:12,588 INFO L479 AbstractCegarLoop]: Abstraction has 1711 states and 2117 transitions. [2020-07-19 20:56:12,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 20:56:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2117 transitions. [2020-07-19 20:56:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-19 20:56:12,591 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:56:12,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:56:12,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 20:56:12,592 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:56:12,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:56:12,592 INFO L82 PathProgramCache]: Analyzing trace with hash 745790239, now seen corresponding path program 1 times [2020-07-19 20:56:12,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:56:12,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378602169] [2020-07-19 20:56:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20c936be [2020-07-19 20:56:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:56:12,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:56:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:56:12,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:56:12,813 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 20:56:12,814 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 20:56:12,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 20:56:13,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:56:13 BoogieIcfgContainer [2020-07-19 20:56:13,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 20:56:13,032 INFO L168 Benchmark]: Toolchain (without parser) took 31076.34 ms. Allocated memory was 138.4 MB in the beginning and 706.7 MB in the end (delta: 568.3 MB). Free memory was 101.7 MB in the beginning and 544.0 MB in the end (delta: -442.3 MB). Peak memory consumption was 126.0 MB. Max. memory is 7.1 GB. [2020-07-19 20:56:13,033 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 20:56:13,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.28 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 170.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-07-19 20:56:13,034 INFO L168 Benchmark]: Boogie Preprocessor took 87.18 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-19 20:56:13,035 INFO L168 Benchmark]: RCFGBuilder took 1123.76 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.3 MB in the beginning and 194.5 MB in the end (delta: -28.2 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-19 20:56:13,036 INFO L168 Benchmark]: TraceAbstraction took 29256.04 ms. Allocated memory was 235.4 MB in the beginning and 706.7 MB in the end (delta: 471.3 MB). Free memory was 194.5 MB in the beginning and 544.0 MB in the end (delta: -349.5 MB). Peak memory consumption was 121.8 MB. Max. memory is 7.1 GB. [2020-07-19 20:56:13,040 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 603.28 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 170.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.18 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1123.76 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.3 MB in the beginning and 194.5 MB in the end (delta: -28.2 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29256.04 ms. Allocated memory was 235.4 MB in the beginning and 706.7 MB in the end (delta: 471.3 MB). Free memory was 194.5 MB in the beginning and 544.0 MB in the end (delta: -349.5 MB). Peak memory consumption was 121.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=169, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] int retValue_acc ; [L585] 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] [L589] 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] [L590] 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] [L591] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L591] 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] [L591] tmp = valid_product() [L593] 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] [L595] 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] [L596] 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] [L578] 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] [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] 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] [L93] 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] [L95] 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] [L101] tmp = __VERIFIER_nondet_int() [L103] 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] [L105] 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] [L417] COND TRUE waterLevel < 2 [L418] 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] [L105] 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] [L111] tmp___0 = __VERIFIER_nondet_int() [L113] 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=-1, waterLevel=2] [L115] 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] [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] 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] [L115] 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=-1, waterLevel=2] [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) 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=-1, tmp___2=1, waterLevel=2] [L138] 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] [L167] 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] [L174] 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] [L176] 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] [L248] 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] [L251] 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] [L266] CALL processEnvironment__wrappee__lowWaterSensor() 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] [L222] 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] [L225] 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] [L240] CALL processEnvironment__wrappee__highWaterSensor() 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] [L196] 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] [L199] 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] [L201] 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] [L345] int retValue_acc ; [L346] int tmp ; [L347] 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] [L351] 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] [L479] 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] [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] 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] [L351] 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] [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] 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] [L358] retValue_acc = tmp___0 [L359] 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] [L201] 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] [L201] tmp = isHighWaterLevel() [L203] 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] [L205] 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] [L276] 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] [L205] 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] [L240] RET processEnvironment__wrappee__highWaterSensor() 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] [L266] RET processEnvironment__wrappee__lowWaterSensor() 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] [L176] 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] [L182] 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] [L608] int tmp ; [L609] 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] [L613] 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] [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] 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] [L613] 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] [L613] tmp = isMethaneLevelCritical() [L615] 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] [L617] 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] [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] 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] [L617] 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] [L617] tmp___0 = isPumpRunning() [L619] 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] [L621] 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] [L506] __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 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1099 SDtfs, 1942 SDslu, 1137 SDs, 0 SdLazy, 5857 SolverSat, 1206 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 187 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1711occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1219 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 618 NumberOfCodeBlocks, 618 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 158044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...