java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 06:05:54,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 06:05:54,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 06:05:54,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 06:05:54,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 06:05:54,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 06:05:54,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 06:05:54,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 06:05:54,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 06:05:54,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 06:05:54,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 06:05:54,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 06:05:54,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 06:05:54,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 06:05:54,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 06:05:54,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 06:05:54,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 06:05:54,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 06:05:54,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 06:05:54,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 06:05:54,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 06:05:54,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 06:05:54,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 06:05:54,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 06:05:54,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 06:05:54,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 06:05:54,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 06:05:54,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 06:05:54,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 06:05:54,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 06:05:54,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 06:05:54,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 06:05:55,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 06:05:55,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 06:05:55,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 06:05:55,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 06:05:55,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 06:05:55,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 06:05:55,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 06:05:55,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 06:05:55,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 06:05:55,007 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 [2019-09-08 06:05:55,030 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 06:05:55,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 06:05:55,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 06:05:55,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 06:05:55,033 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 06:05:55,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 06:05:55,034 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 06:05:55,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 06:05:55,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 06:05:55,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 06:05:55,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 06:05:55,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 06:05:55,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 06:05:55,036 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 06:05:55,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 06:05:55,037 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 06:05:55,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 06:05:55,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 06:05:55,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 06:05:55,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 06:05:55,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 06:05:55,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:05:55,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 06:05:55,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 06:05:55,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 06:05:55,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 06:05:55,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 06:05:55,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 06:05:55,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 06:05:55,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 06:05:55,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 06:05:55,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 06:05:55,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 06:05:55,115 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 06:05:55,116 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2019-09-08 06:05:55,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e5fb1e1/bbcf636e855d44518e05f0075aca0496/FLAGabdbc569d [2019-09-08 06:05:55,686 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 06:05:55,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2019-09-08 06:05:55,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e5fb1e1/bbcf636e855d44518e05f0075aca0496/FLAGabdbc569d [2019-09-08 06:05:55,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e5fb1e1/bbcf636e855d44518e05f0075aca0496 [2019-09-08 06:05:55,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 06:05:55,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 06:05:56,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 06:05:56,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 06:05:56,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 06:05:56,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:05:55" (1/1) ... [2019-09-08 06:05:56,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2412203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56, skipping insertion in model container [2019-09-08 06:05:56,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:05:55" (1/1) ... [2019-09-08 06:05:56,015 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 06:05:56,059 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 06:05:56,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:05:56,511 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 06:05:56,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:05:56,629 INFO L192 MainTranslator]: Completed translation [2019-09-08 06:05:56,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56 WrapperNode [2019-09-08 06:05:56,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 06:05:56,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 06:05:56,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 06:05:56,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 06:05:56,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... [2019-09-08 06:05:56,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... [2019-09-08 06:05:56,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... [2019-09-08 06:05:56,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... [2019-09-08 06:05:56,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... [2019-09-08 06:05:56,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... [2019-09-08 06:05:56,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... [2019-09-08 06:05:56,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 06:05:56,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 06:05:56,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 06:05:56,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 06:05:56,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:05:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 06:05:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 06:05:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 06:05:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-08 06:05:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-08 06:05:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 06:05:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-08 06:05:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 06:05:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 06:05:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 06:05:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 06:05:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 06:05:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-08 06:05:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 06:05:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 06:05:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 06:05:56,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 06:05:56,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 06:05:56,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 06:05:56,794 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-08 06:05:56,794 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-08 06:05:56,794 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-08 06:05:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-08 06:05:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-08 06:05:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-08 06:05:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-08 06:05:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-08 06:05:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-08 06:05:56,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-08 06:05:56,796 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-08 06:05:56,796 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 06:05:56,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 06:05:56,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-08 06:05:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-08 06:05:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-08 06:05:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-08 06:05:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-08 06:05:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-08 06:05:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-08 06:05:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 06:05:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 06:05:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 06:05:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-08 06:05:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-08 06:05:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-08 06:05:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-08 06:05:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-08 06:05:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-08 06:05:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 06:05:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 06:05:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-08 06:05:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 06:05:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 06:05:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 06:05:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 06:05:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 06:05:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 06:05:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-08 06:05:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-08 06:05:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-08 06:05:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 06:05:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 06:05:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 06:05:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 06:05:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 06:05:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 06:05:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 06:05:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 06:05:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 06:05:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 06:05:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 06:05:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 06:05:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 06:05:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 06:05:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 06:05:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 06:05:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 06:05:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-08 06:05:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-08 06:05:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-08 06:05:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-08 06:05:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-08 06:05:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-08 06:05:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-08 06:05:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-08 06:05:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-08 06:05:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-08 06:05:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-08 06:05:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-08 06:05:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 06:05:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 06:05:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 06:05:57,886 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 06:05:57,886 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-08 06:05:57,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:05:57 BoogieIcfgContainer [2019-09-08 06:05:57,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 06:05:57,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 06:05:57,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 06:05:57,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 06:05:57,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:05:55" (1/3) ... [2019-09-08 06:05:57,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2c1796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:05:57, skipping insertion in model container [2019-09-08 06:05:57,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:05:56" (2/3) ... [2019-09-08 06:05:57,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2c1796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:05:57, skipping insertion in model container [2019-09-08 06:05:57,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:05:57" (3/3) ... [2019-09-08 06:05:57,896 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2019-09-08 06:05:57,905 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 06:05:57,913 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 06:05:57,928 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 06:05:57,960 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 06:05:57,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 06:05:57,961 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 06:05:57,961 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 06:05:57,961 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 06:05:57,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 06:05:57,962 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 06:05:57,962 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 06:05:57,962 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 06:05:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2019-09-08 06:05:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 06:05:57,993 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:05:57,995 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:05:57,997 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:05:58,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:05:58,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1406508770, now seen corresponding path program 1 times [2019-09-08 06:05:58,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:05:58,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:05:58,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:58,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:05:58,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:05:58,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:05:58,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:05:58,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 06:05:58,356 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 06:05:58,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 06:05:58,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 06:05:58,373 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2019-09-08 06:05:58,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:05:58,435 INFO L93 Difference]: Finished difference Result 254 states and 315 transitions. [2019-09-08 06:05:58,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 06:05:58,436 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-08 06:05:58,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:05:58,448 INFO L225 Difference]: With dead ends: 254 [2019-09-08 06:05:58,448 INFO L226 Difference]: Without dead ends: 127 [2019-09-08 06:05:58,453 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 06:05:58,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-09-08 06:05:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-09-08 06:05:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-09-08 06:05:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2019-09-08 06:05:58,504 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 46 [2019-09-08 06:05:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:05:58,505 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2019-09-08 06:05:58,505 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 06:05:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2019-09-08 06:05:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-08 06:05:58,509 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:05:58,509 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:05:58,509 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:05:58,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:05:58,510 INFO L82 PathProgramCache]: Analyzing trace with hash 297997714, now seen corresponding path program 1 times [2019-09-08 06:05:58,510 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:05:58,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:05:58,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:58,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:05:58,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:05:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:05:58,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:05:58,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:05:58,660 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:05:58,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:05:58,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:05:58,661 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 3 states. [2019-09-08 06:05:58,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:05:58,704 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions. [2019-09-08 06:05:58,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:05:58,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-08 06:05:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:05:58,711 INFO L225 Difference]: With dead ends: 199 [2019-09-08 06:05:58,711 INFO L226 Difference]: Without dead ends: 118 [2019-09-08 06:05:58,716 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:05:58,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-09-08 06:05:58,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-09-08 06:05:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-09-08 06:05:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2019-09-08 06:05:58,745 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 47 [2019-09-08 06:05:58,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:05:58,745 INFO L475 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2019-09-08 06:05:58,746 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:05:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2019-09-08 06:05:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 06:05:58,751 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:05:58,751 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:05:58,752 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:05:58,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:05:58,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1416539958, now seen corresponding path program 1 times [2019-09-08 06:05:58,754 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:05:58,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:05:58,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:58,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:05:58,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:05:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:05:58,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:05:58,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 06:05:58,982 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 06:05:58,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 06:05:58,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:05:58,983 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 7 states. [2019-09-08 06:05:59,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:05:59,331 INFO L93 Difference]: Finished difference Result 212 states and 251 transitions. [2019-09-08 06:05:59,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:05:59,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-08 06:05:59,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:05:59,333 INFO L225 Difference]: With dead ends: 212 [2019-09-08 06:05:59,334 INFO L226 Difference]: Without dead ends: 118 [2019-09-08 06:05:59,334 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-08 06:05:59,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-09-08 06:05:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-09-08 06:05:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-09-08 06:05:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2019-09-08 06:05:59,348 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 52 [2019-09-08 06:05:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:05:59,349 INFO L475 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2019-09-08 06:05:59,349 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 06:05:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2019-09-08 06:05:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 06:05:59,351 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:05:59,352 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:05:59,352 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:05:59,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:05:59,352 INFO L82 PathProgramCache]: Analyzing trace with hash -819223945, now seen corresponding path program 1 times [2019-09-08 06:05:59,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:05:59,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:05:59,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:59,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:05:59,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:05:59,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:05:59,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:05:59,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:05:59,484 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:05:59,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:05:59,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:05:59,485 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand 5 states. [2019-09-08 06:05:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:05:59,970 INFO L93 Difference]: Finished difference Result 311 states and 375 transitions. [2019-09-08 06:05:59,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 06:05:59,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-08 06:05:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:05:59,979 INFO L225 Difference]: With dead ends: 311 [2019-09-08 06:05:59,979 INFO L226 Difference]: Without dead ends: 217 [2019-09-08 06:05:59,980 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:05:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-09-08 06:06:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 198. [2019-09-08 06:06:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-09-08 06:06:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 225 transitions. [2019-09-08 06:06:00,025 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 225 transitions. Word has length 65 [2019-09-08 06:06:00,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:00,026 INFO L475 AbstractCegarLoop]: Abstraction has 198 states and 225 transitions. [2019-09-08 06:06:00,026 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:06:00,026 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 225 transitions. [2019-09-08 06:06:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-08 06:06:00,031 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:00,032 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:00,032 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:00,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:00,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1180966768, now seen corresponding path program 1 times [2019-09-08 06:06:00,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:00,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:00,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:00,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:00,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:00,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:00,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:06:00,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:06:00,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:06:00,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:06:00,130 INFO L87 Difference]: Start difference. First operand 198 states and 225 transitions. Second operand 6 states. [2019-09-08 06:06:00,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:00,332 INFO L93 Difference]: Finished difference Result 531 states and 625 transitions. [2019-09-08 06:06:00,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:06:00,333 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-08 06:06:00,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:00,339 INFO L225 Difference]: With dead ends: 531 [2019-09-08 06:06:00,339 INFO L226 Difference]: Without dead ends: 357 [2019-09-08 06:06:00,340 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-08 06:06:00,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-09-08 06:06:00,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 351. [2019-09-08 06:06:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-09-08 06:06:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 400 transitions. [2019-09-08 06:06:00,404 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 400 transitions. Word has length 79 [2019-09-08 06:06:00,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:00,405 INFO L475 AbstractCegarLoop]: Abstraction has 351 states and 400 transitions. [2019-09-08 06:06:00,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:06:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 400 transitions. [2019-09-08 06:06:00,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-08 06:06:00,408 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:00,408 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:00,409 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:00,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1165038356, now seen corresponding path program 1 times [2019-09-08 06:06:00,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:00,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:00,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:00,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:00,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:00,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:00,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 06:06:00,561 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 06:06:00,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 06:06:00,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:00,562 INFO L87 Difference]: Start difference. First operand 351 states and 400 transitions. Second operand 7 states. [2019-09-08 06:06:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:01,173 INFO L93 Difference]: Finished difference Result 386 states and 454 transitions. [2019-09-08 06:06:01,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 06:06:01,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-09-08 06:06:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:01,177 INFO L225 Difference]: With dead ends: 386 [2019-09-08 06:06:01,177 INFO L226 Difference]: Without dead ends: 383 [2019-09-08 06:06:01,177 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-08 06:06:01,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-09-08 06:06:01,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2019-09-08 06:06:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-09-08 06:06:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 399 transitions. [2019-09-08 06:06:01,204 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 399 transitions. Word has length 83 [2019-09-08 06:06:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:01,204 INFO L475 AbstractCegarLoop]: Abstraction has 351 states and 399 transitions. [2019-09-08 06:06:01,204 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 06:06:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 399 transitions. [2019-09-08 06:06:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-08 06:06:01,206 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:01,206 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:01,206 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:01,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:01,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1066260182, now seen corresponding path program 1 times [2019-09-08 06:06:01,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:01,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:01,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:01,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:01,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:01,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:01,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:01,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:06:01,294 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:06:01,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:06:01,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:06:01,295 INFO L87 Difference]: Start difference. First operand 351 states and 399 transitions. Second operand 6 states. [2019-09-08 06:06:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:01,335 INFO L93 Difference]: Finished difference Result 688 states and 794 transitions. [2019-09-08 06:06:01,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:06:01,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-08 06:06:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:01,338 INFO L225 Difference]: With dead ends: 688 [2019-09-08 06:06:01,339 INFO L226 Difference]: Without dead ends: 361 [2019-09-08 06:06:01,340 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:01,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-09-08 06:06:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-09-08 06:06:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-09-08 06:06:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2019-09-08 06:06:01,375 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 84 [2019-09-08 06:06:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:01,375 INFO L475 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2019-09-08 06:06:01,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:06:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2019-09-08 06:06:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-08 06:06:01,377 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:01,377 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:01,377 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:01,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1088892436, now seen corresponding path program 1 times [2019-09-08 06:06:01,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:01,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:01,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:01,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:01,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:01,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:01,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:01,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 06:06:01,516 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:06:01,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:06:01,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:01,517 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 8 states. [2019-09-08 06:06:01,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:01,565 INFO L93 Difference]: Finished difference Result 712 states and 828 transitions. [2019-09-08 06:06:01,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:06:01,566 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-09-08 06:06:01,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:01,571 INFO L225 Difference]: With dead ends: 712 [2019-09-08 06:06:01,573 INFO L226 Difference]: Without dead ends: 375 [2019-09-08 06:06:01,575 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-09-08 06:06:01,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 369. [2019-09-08 06:06:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-09-08 06:06:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 417 transitions. [2019-09-08 06:06:01,620 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 417 transitions. Word has length 84 [2019-09-08 06:06:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:01,620 INFO L475 AbstractCegarLoop]: Abstraction has 369 states and 417 transitions. [2019-09-08 06:06:01,620 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:06:01,620 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 417 transitions. [2019-09-08 06:06:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-08 06:06:01,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:01,622 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:01,622 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:01,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:01,623 INFO L82 PathProgramCache]: Analyzing trace with hash 2114384435, now seen corresponding path program 1 times [2019-09-08 06:06:01,623 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:01,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:01,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:01,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:01,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:01,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:01,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:01,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 06:06:01,748 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 06:06:01,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 06:06:01,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 06:06:01,748 INFO L87 Difference]: Start difference. First operand 369 states and 417 transitions. Second operand 4 states. [2019-09-08 06:06:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:02,007 INFO L93 Difference]: Finished difference Result 1123 states and 1338 transitions. [2019-09-08 06:06:02,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 06:06:02,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-09-08 06:06:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:02,015 INFO L225 Difference]: With dead ends: 1123 [2019-09-08 06:06:02,016 INFO L226 Difference]: Without dead ends: 778 [2019-09-08 06:06:02,018 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 06:06:02,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2019-09-08 06:06:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 501. [2019-09-08 06:06:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-09-08 06:06:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 562 transitions. [2019-09-08 06:06:02,073 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 562 transitions. Word has length 84 [2019-09-08 06:06:02,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:02,075 INFO L475 AbstractCegarLoop]: Abstraction has 501 states and 562 transitions. [2019-09-08 06:06:02,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 06:06:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 562 transitions. [2019-09-08 06:06:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-08 06:06:02,082 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:02,082 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:02,082 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:02,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:02,083 INFO L82 PathProgramCache]: Analyzing trace with hash 166319437, now seen corresponding path program 1 times [2019-09-08 06:06:02,083 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:02,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:02,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:02,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:02,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:06:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:06:03,326 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 06:06:03,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:06:03 BoogieIcfgContainer [2019-09-08 06:06:03,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 06:06:03,541 INFO L168 Benchmark]: Toolchain (without parser) took 7539.99 ms. Allocated memory was 140.0 MB in the beginning and 322.4 MB in the end (delta: 182.5 MB). Free memory was 86.6 MB in the beginning and 210.9 MB in the end (delta: -124.3 MB). Peak memory consumption was 193.5 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:03,542 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 06:06:03,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.40 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 86.4 MB in the beginning and 164.8 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:03,545 INFO L168 Benchmark]: Boogie Preprocessor took 89.84 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 161.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:03,546 INFO L168 Benchmark]: RCFGBuilder took 1167.67 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 161.1 MB in the beginning and 194.0 MB in the end (delta: -32.9 MB). Peak memory consumption was 90.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:03,552 INFO L168 Benchmark]: TraceAbstraction took 5648.76 ms. Allocated memory was 224.4 MB in the beginning and 322.4 MB in the end (delta: 98.0 MB). Free memory was 194.0 MB in the beginning and 210.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 216.4 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:03,558 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.40 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 86.4 MB in the beginning and 164.8 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.84 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 161.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1167.67 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 161.1 MB in the beginning and 194.0 MB in the end (delta: -32.9 MB). Peak memory consumption was 90.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5648.76 ms. Allocated memory was 224.4 MB in the beginning and 322.4 MB in the end (delta: 98.0 MB). Free memory was 194.0 MB in the beginning and 210.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 216.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 837]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] 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] [L776] 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] [L778] 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] [L784] tmp = __VERIFIER_nondet_int() [L786] 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=8, waterLevel=1] [L788] 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] [L861] COND TRUE waterLevel < 2 [L862] 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] [L788] 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=8, waterLevel=2] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] 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=8, tmp___0=8, waterLevel=2] [L798] 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] [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] 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] [L798] 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=8, tmp___0=8, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___2)) [L812] tmp___1 = __VERIFIER_nondet_int() [L814] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=8, tmp___0=8, tmp___1=1, tmp___2=0, waterLevel=2] [L821] 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] [L587] 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] [L594] 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] [L596] 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] [L642] 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] [L645] 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] [L660] 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] [L616] 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] [L619] 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] [L621] 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] [L739] int retValue_acc ; [L740] int tmp ; [L741] 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] [L745] 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] [L923] 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] [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] 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] [L745] 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] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] 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] [L752] retValue_acc = tmp___0 [L753] 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] [L621] 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] [L621] tmp = isHighWaterLevel() [L623] 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] [L625] 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] [L670] 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] [L625] 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] [L660] 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] [L596] 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] [L602] 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] [L183] int tmp ; [L184] 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] [L188] 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] [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] 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] [L188] 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] [L188] tmp = isMethaneLevelCritical() [L190] 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] [L192] 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] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] 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] [L192] 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] [L192] tmp___0 = isPumpRunning() [L194] 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] [L196] 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] [L837] __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 39 procedures, 229 locations, 1 error locations. UNSAFE Result, 5.5s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1346 SDtfs, 822 SDslu, 2795 SDs, 0 SdLazy, 974 SolverSat, 271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 340 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 76469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...