./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e304dec1a19556a559249c7b1ef76290bc8b678 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 09:36:58,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 09:36:58,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 09:36:58,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 09:36:58,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 09:36:58,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 09:36:58,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 09:36:58,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 09:36:58,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 09:36:58,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 09:36:58,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 09:36:58,983 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 09:36:58,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 09:36:58,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 09:36:58,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 09:36:58,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 09:36:58,986 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 09:36:58,988 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 09:36:58,989 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 09:36:58,990 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 09:36:58,991 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 09:36:58,991 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 09:36:58,993 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 09:36:58,993 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 09:36:58,993 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 09:36:58,993 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 09:36:58,994 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 09:36:58,994 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 09:36:58,995 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 09:36:58,995 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 09:36:58,995 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 09:36:58,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 09:36:58,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 09:36:58,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 09:36:58,996 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 09:36:58,996 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 09:36:58,997 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 09:36:59,003 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 09:36:59,003 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 09:36:59,004 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 09:36:59,004 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 09:36:59,004 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 09:36:59,005 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 09:36:59,005 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 09:36:59,005 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 09:36:59,005 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 09:36:59,005 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 09:36:59,005 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 09:36:59,005 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 09:36:59,005 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 09:36:59,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 09:36:59,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 09:36:59,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 09:36:59,006 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 09:36:59,006 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 09:36:59,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 09:36:59,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 09:36:59,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 09:36:59,007 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 09:36:59,007 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 09:36:59,007 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 09:36:59,007 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 09:36:59,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 09:36:59,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 09:36:59,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 09:36:59,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 09:36:59,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 09:36:59,008 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 09:36:59,008 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 09:36:59,008 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 09:36:59,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 09:36:59,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 09:36:59,009 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 09:36:59,009 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e304dec1a19556a559249c7b1ef76290bc8b678 [2018-12-09 09:36:59,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 09:36:59,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 09:36:59,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 09:36:59,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 09:36:59,039 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 09:36:59,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product44_false-unreach-call_false-termination.cil.c [2018-12-09 09:36:59,076 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/data/aca44640e/822300901c7d4ecd99fae9ee9fd7d38e/FLAG23e7bd2f1 [2018-12-09 09:36:59,497 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 09:36:59,497 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/sv-benchmarks/c/product-lines/minepump_spec2_product44_false-unreach-call_false-termination.cil.c [2018-12-09 09:36:59,504 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/data/aca44640e/822300901c7d4ecd99fae9ee9fd7d38e/FLAG23e7bd2f1 [2018-12-09 09:36:59,512 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/data/aca44640e/822300901c7d4ecd99fae9ee9fd7d38e [2018-12-09 09:36:59,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 09:36:59,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 09:36:59,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 09:36:59,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 09:36:59,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 09:36:59,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59, skipping insertion in model container [2018-12-09 09:36:59,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 09:36:59,551 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 09:36:59,701 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:36:59,747 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 09:36:59,800 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:36:59,819 INFO L195 MainTranslator]: Completed translation [2018-12-09 09:36:59,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59 WrapperNode [2018-12-09 09:36:59,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 09:36:59,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 09:36:59,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 09:36:59,820 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 09:36:59,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 09:36:59,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 09:36:59,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 09:36:59,840 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 09:36:59,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... [2018-12-09 09:36:59,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 09:36:59,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 09:36:59,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 09:36:59,863 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 09:36:59,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/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 [2018-12-09 09:36:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 09:36:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 09:36:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 09:36:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 09:36:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 09:36:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 09:36:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 09:36:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 09:36:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 09:36:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 09:36:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 09:36:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 09:36:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 09:36:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 09:36:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 09:36:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 09:36:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 09:36:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2018-12-09 09:36:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2018-12-09 09:36:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2018-12-09 09:36:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2018-12-09 09:36:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 09:36:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 09:36:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 09:36:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 09:36:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 09:36:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 09:36:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 09:36:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 09:36:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 09:36:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 09:36:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 09:36:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 09:36:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 09:36:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 09:36:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 09:36:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 09:36:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 09:36:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 09:36:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 09:36:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 09:36:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 09:36:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 09:36:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 09:36:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 09:36:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 09:36:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 09:36:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 09:36:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 09:36:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 09:36:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 09:36:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 09:36:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 09:36:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 09:36:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 09:36:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 09:36:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 09:36:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 09:36:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 09:36:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 09:37:00,190 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 09:37:00,191 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 09:37:00,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:37:00 BoogieIcfgContainer [2018-12-09 09:37:00,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 09:37:00,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 09:37:00,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 09:37:00,195 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 09:37:00,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:36:59" (1/3) ... [2018-12-09 09:37:00,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4642bae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:37:00, skipping insertion in model container [2018-12-09 09:37:00,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:36:59" (2/3) ... [2018-12-09 09:37:00,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4642bae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:37:00, skipping insertion in model container [2018-12-09 09:37:00,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:37:00" (3/3) ... [2018-12-09 09:37:00,197 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44_false-unreach-call_false-termination.cil.c [2018-12-09 09:37:00,205 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 09:37:00,212 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 09:37:00,224 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 09:37:00,247 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 09:37:00,248 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 09:37:00,248 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 09:37:00,248 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 09:37:00,248 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 09:37:00,248 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 09:37:00,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 09:37:00,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 09:37:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2018-12-09 09:37:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 09:37:00,265 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:00,266 INFO L402 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] [2018-12-09 09:37:00,267 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:00,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:00,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1477254524, now seen corresponding path program 1 times [2018-12-09 09:37:00,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:00,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:00,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,299 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:37:00,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:00,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 09:37:00,414 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:00,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 09:37:00,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 09:37:00,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 09:37:00,425 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 2 states. [2018-12-09 09:37:00,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:00,447 INFO L93 Difference]: Finished difference Result 266 states and 327 transitions. [2018-12-09 09:37:00,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 09:37:00,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2018-12-09 09:37:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:00,455 INFO L225 Difference]: With dead ends: 266 [2018-12-09 09:37:00,455 INFO L226 Difference]: Without dead ends: 135 [2018-12-09 09:37:00,457 INFO L631 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 [2018-12-09 09:37:00,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-12-09 09:37:00,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-12-09 09:37:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-12-09 09:37:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2018-12-09 09:37:00,488 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 51 [2018-12-09 09:37:00,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:00,488 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2018-12-09 09:37:00,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 09:37:00,488 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2018-12-09 09:37:00,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 09:37:00,490 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:00,490 INFO L402 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] [2018-12-09 09:37:00,490 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:00,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:00,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1589525536, now seen corresponding path program 1 times [2018-12-09 09:37:00,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:00,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:00,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,491 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:37:00,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:00,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 09:37:00,549 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:00,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 09:37:00,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 09:37:00,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 09:37:00,550 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand 3 states. [2018-12-09 09:37:00,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:00,565 INFO L93 Difference]: Finished difference Result 202 states and 235 transitions. [2018-12-09 09:37:00,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 09:37:00,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-09 09:37:00,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:00,567 INFO L225 Difference]: With dead ends: 202 [2018-12-09 09:37:00,567 INFO L226 Difference]: Without dead ends: 126 [2018-12-09 09:37:00,568 INFO L631 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 [2018-12-09 09:37:00,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-12-09 09:37:00,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-12-09 09:37:00,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-12-09 09:37:00,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2018-12-09 09:37:00,575 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 52 [2018-12-09 09:37:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:00,576 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2018-12-09 09:37:00,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 09:37:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2018-12-09 09:37:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 09:37:00,577 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:00,577 INFO L402 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] [2018-12-09 09:37:00,577 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:00,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:00,577 INFO L82 PathProgramCache]: Analyzing trace with hash -266816257, now seen corresponding path program 1 times [2018-12-09 09:37:00,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:00,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:00,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:37:00,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:00,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 09:37:00,640 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:00,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 09:37:00,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 09:37:00,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 09:37:00,641 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand 7 states. [2018-12-09 09:37:00,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:00,891 INFO L93 Difference]: Finished difference Result 373 states and 449 transitions. [2018-12-09 09:37:00,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 09:37:00,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-12-09 09:37:00,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:00,893 INFO L225 Difference]: With dead ends: 373 [2018-12-09 09:37:00,893 INFO L226 Difference]: Without dead ends: 275 [2018-12-09 09:37:00,894 INFO L631 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 [2018-12-09 09:37:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-12-09 09:37:00,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 251. [2018-12-09 09:37:00,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-12-09 09:37:00,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 300 transitions. [2018-12-09 09:37:00,911 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 300 transitions. Word has length 57 [2018-12-09 09:37:00,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:00,911 INFO L480 AbstractCegarLoop]: Abstraction has 251 states and 300 transitions. [2018-12-09 09:37:00,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 09:37:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 300 transitions. [2018-12-09 09:37:00,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-12-09 09:37:00,913 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:00,913 INFO L402 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] [2018-12-09 09:37:00,913 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:00,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:00,913 INFO L82 PathProgramCache]: Analyzing trace with hash 358840493, now seen corresponding path program 1 times [2018-12-09 09:37:00,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:00,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:00,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:00,914 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:37:00,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:00,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 09:37:00,968 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:00,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 09:37:00,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 09:37:00,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 09:37:00,969 INFO L87 Difference]: Start difference. First operand 251 states and 300 transitions. Second operand 6 states. [2018-12-09 09:37:01,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:01,101 INFO L93 Difference]: Finished difference Result 679 states and 834 transitions. [2018-12-09 09:37:01,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 09:37:01,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-12-09 09:37:01,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:01,105 INFO L225 Difference]: With dead ends: 679 [2018-12-09 09:37:01,105 INFO L226 Difference]: Without dead ends: 456 [2018-12-09 09:37:01,107 INFO L631 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 [2018-12-09 09:37:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2018-12-09 09:37:01,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 450. [2018-12-09 09:37:01,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-12-09 09:37:01,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 540 transitions. [2018-12-09 09:37:01,137 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 540 transitions. Word has length 62 [2018-12-09 09:37:01,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:01,138 INFO L480 AbstractCegarLoop]: Abstraction has 450 states and 540 transitions. [2018-12-09 09:37:01,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 09:37:01,138 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 540 transitions. [2018-12-09 09:37:01,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 09:37:01,139 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:01,139 INFO L402 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] [2018-12-09 09:37:01,140 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:01,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:01,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1176729321, now seen corresponding path program 1 times [2018-12-09 09:37:01,140 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:01,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:01,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,141 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:37:01,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:01,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 09:37:01,202 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:01,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 09:37:01,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 09:37:01,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 09:37:01,203 INFO L87 Difference]: Start difference. First operand 450 states and 540 transitions. Second operand 7 states. [2018-12-09 09:37:01,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:01,543 INFO L93 Difference]: Finished difference Result 1163 states and 1488 transitions. [2018-12-09 09:37:01,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 09:37:01,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2018-12-09 09:37:01,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:01,546 INFO L225 Difference]: With dead ends: 1163 [2018-12-09 09:37:01,546 INFO L226 Difference]: Without dead ends: 741 [2018-12-09 09:37:01,547 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 09:37:01,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-12-09 09:37:01,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 655. [2018-12-09 09:37:01,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2018-12-09 09:37:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 785 transitions. [2018-12-09 09:37:01,574 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 785 transitions. Word has length 66 [2018-12-09 09:37:01,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:01,574 INFO L480 AbstractCegarLoop]: Abstraction has 655 states and 785 transitions. [2018-12-09 09:37:01,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 09:37:01,575 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 785 transitions. [2018-12-09 09:37:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 09:37:01,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:01,577 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:37:01,577 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:01,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:01,577 INFO L82 PathProgramCache]: Analyzing trace with hash -863272192, now seen corresponding path program 1 times [2018-12-09 09:37:01,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:01,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:01,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 09:37:01,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:01,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 09:37:01,617 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:01,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 09:37:01,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 09:37:01,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 09:37:01,617 INFO L87 Difference]: Start difference. First operand 655 states and 785 transitions. Second operand 6 states. [2018-12-09 09:37:01,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:01,666 INFO L93 Difference]: Finished difference Result 1310 states and 1614 transitions. [2018-12-09 09:37:01,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 09:37:01,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-12-09 09:37:01,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:01,668 INFO L225 Difference]: With dead ends: 1310 [2018-12-09 09:37:01,668 INFO L226 Difference]: Without dead ends: 683 [2018-12-09 09:37:01,669 INFO L631 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 [2018-12-09 09:37:01,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2018-12-09 09:37:01,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 675. [2018-12-09 09:37:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2018-12-09 09:37:01,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 805 transitions. [2018-12-09 09:37:01,690 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 805 transitions. Word has length 99 [2018-12-09 09:37:01,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:01,691 INFO L480 AbstractCegarLoop]: Abstraction has 675 states and 805 transitions. [2018-12-09 09:37:01,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 09:37:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 805 transitions. [2018-12-09 09:37:01,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 09:37:01,692 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:01,692 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:37:01,692 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:01,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:01,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1382307262, now seen corresponding path program 1 times [2018-12-09 09:37:01,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:01,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:01,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,694 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 09:37:01,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:01,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 09:37:01,749 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:01,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 09:37:01,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 09:37:01,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 09:37:01,750 INFO L87 Difference]: Start difference. First operand 675 states and 805 transitions. Second operand 8 states. [2018-12-09 09:37:01,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:01,785 INFO L93 Difference]: Finished difference Result 1350 states and 1654 transitions. [2018-12-09 09:37:01,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 09:37:01,785 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2018-12-09 09:37:01,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:01,787 INFO L225 Difference]: With dead ends: 1350 [2018-12-09 09:37:01,787 INFO L226 Difference]: Without dead ends: 703 [2018-12-09 09:37:01,789 INFO L631 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 [2018-12-09 09:37:01,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2018-12-09 09:37:01,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 691. [2018-12-09 09:37:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2018-12-09 09:37:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 821 transitions. [2018-12-09 09:37:01,809 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 821 transitions. Word has length 99 [2018-12-09 09:37:01,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:01,810 INFO L480 AbstractCegarLoop]: Abstraction has 691 states and 821 transitions. [2018-12-09 09:37:01,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 09:37:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 821 transitions. [2018-12-09 09:37:01,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 09:37:01,811 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:01,811 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:37:01,811 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:01,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:01,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1943079011, now seen corresponding path program 1 times [2018-12-09 09:37:01,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:01,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:01,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:01,812 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 09:37:01,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:37:01,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 09:37:01,852 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:01,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 09:37:01,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 09:37:01,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 09:37:01,852 INFO L87 Difference]: Start difference. First operand 691 states and 821 transitions. Second operand 4 states. [2018-12-09 09:37:02,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:02,005 INFO L93 Difference]: Finished difference Result 2193 states and 2732 transitions. [2018-12-09 09:37:02,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 09:37:02,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-12-09 09:37:02,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:02,011 INFO L225 Difference]: With dead ends: 2193 [2018-12-09 09:37:02,012 INFO L226 Difference]: Without dead ends: 1530 [2018-12-09 09:37:02,014 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 09:37:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2018-12-09 09:37:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1499. [2018-12-09 09:37:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2018-12-09 09:37:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1819 transitions. [2018-12-09 09:37:02,073 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1819 transitions. Word has length 99 [2018-12-09 09:37:02,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:02,073 INFO L480 AbstractCegarLoop]: Abstraction has 1499 states and 1819 transitions. [2018-12-09 09:37:02,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 09:37:02,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1819 transitions. [2018-12-09 09:37:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-09 09:37:02,076 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:02,076 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:37:02,077 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:02,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:02,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1434754461, now seen corresponding path program 1 times [2018-12-09 09:37:02,077 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:02,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:02,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:02,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:02,078 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 09:37:02,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:37:02,183 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:37:02,184 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2018-12-09 09:37:02,185 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [33], [35], [36], [39], [43], [44], [45], [48], [50], [53], [63], [65], [74], [78], [82], [85], [90], [93], [98], [104], [110], [118], [119], [120], [122], [125], [127], [130], [133], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [167], [169], [170], [175], [177], [178], [179], [211], [215], [229], [237], [241], [242], [245], [246], [247], [248], [249], [250], [251], [252], [253], [257], [258], [259], [261], [262], [263], [264], [265], [266], [271], [272], [273], [274], [279], [283], [284], [285], [286], [287], [289], [290], [291], [292], [293], [294], [301], [302], [303], [305], [306], [307] [2018-12-09 09:37:02,212 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:37:02,213 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:37:02,564 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:37:02,565 INFO L272 AbstractInterpreter]: Visited 99 different actions 101 times. Never merged. Never widened. Performed 3171 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3171 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 135 variables. [2018-12-09 09:37:02,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:02,570 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:37:02,811 INFO L227 lantSequenceWeakener]: Weakened 99 states. On average, predicates are now at 97.02% of their original sizes. [2018-12-09 09:37:02,811 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:37:02,965 INFO L418 sIntCurrentIteration]: We unified 102 AI predicates to 102 [2018-12-09 09:37:02,965 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:37:02,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:37:02,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [13] total 33 [2018-12-09 09:37:02,966 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:02,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-12-09 09:37:02,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-12-09 09:37:02,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-12-09 09:37:02,966 INFO L87 Difference]: Start difference. First operand 1499 states and 1819 transitions. Second operand 22 states. [2018-12-09 09:37:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:09,460 INFO L93 Difference]: Finished difference Result 5426 states and 6942 transitions. [2018-12-09 09:37:09,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-09 09:37:09,460 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 103 [2018-12-09 09:37:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:09,469 INFO L225 Difference]: With dead ends: 5426 [2018-12-09 09:37:09,470 INFO L226 Difference]: Without dead ends: 3955 [2018-12-09 09:37:09,472 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=1474, Unknown=0, NotChecked=0, Total=1722 [2018-12-09 09:37:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2018-12-09 09:37:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3730. [2018-12-09 09:37:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3730 states. [2018-12-09 09:37:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 4601 transitions. [2018-12-09 09:37:09,567 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 4601 transitions. Word has length 103 [2018-12-09 09:37:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:09,568 INFO L480 AbstractCegarLoop]: Abstraction has 3730 states and 4601 transitions. [2018-12-09 09:37:09,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-12-09 09:37:09,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 4601 transitions. [2018-12-09 09:37:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-09 09:37:09,572 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:09,572 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:37:09,573 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:09,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:09,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1092729220, now seen corresponding path program 1 times [2018-12-09 09:37:09,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:09,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:09,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:09,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:09,574 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 09:37:09,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:37:09,659 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:37:09,659 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-12-09 09:37:09,659 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [33], [35], [36], [39], [43], [44], [45], [48], [50], [53], [60], [63], [64], [65], [74], [78], [82], [85], [88], [90], [93], [96], [98], [104], [110], [118], [119], [120], [122], [125], [127], [130], [133], [136], [144], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [167], [169], [170], [175], [177], [178], [179], [208], [211], [215], [221], [224], [228], [229], [237], [241], [242], [245], [246], [247], [248], [249], [250], [251], [252], [253], [257], [258], [259], [261], [262], [263], [264], [265], [266], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [289], [290], [291], [292], [293], [294], [299], [300], [301], [302], [303], [304], [305], [306], [307] [2018-12-09 09:37:09,662 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:37:09,663 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:37:10,391 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 09:37:10,391 INFO L272 AbstractInterpreter]: Visited 117 different actions 577 times. Merged at 18 different actions 54 times. Never widened. Performed 20063 root evaluator evaluations with a maximum evaluation depth of 3. Performed 20063 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 13 fixpoints after 5 different actions. Largest state had 135 variables. [2018-12-09 09:37:10,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:10,399 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 09:37:10,399 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:37:10,399 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 09:37:10,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:10,406 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 09:37:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:10,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:37:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 09:37:10,610 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:37:11,111 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 09:37:11,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 09:37:11,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 09:37:11,128 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:37:11,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 09:37:11,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 09:37:11,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 09:37:11,129 INFO L87 Difference]: Start difference. First operand 3730 states and 4601 transitions. Second operand 8 states. [2018-12-09 09:37:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:11,409 INFO L93 Difference]: Finished difference Result 6711 states and 8361 transitions. [2018-12-09 09:37:11,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 09:37:11,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2018-12-09 09:37:11,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:11,417 INFO L225 Difference]: With dead ends: 6711 [2018-12-09 09:37:11,417 INFO L226 Difference]: Without dead ends: 3365 [2018-12-09 09:37:11,422 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 275 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 09:37:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2018-12-09 09:37:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 3345. [2018-12-09 09:37:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3345 states. [2018-12-09 09:37:11,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 4028 transitions. [2018-12-09 09:37:11,521 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 4028 transitions. Word has length 146 [2018-12-09 09:37:11,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:11,521 INFO L480 AbstractCegarLoop]: Abstraction has 3345 states and 4028 transitions. [2018-12-09 09:37:11,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 09:37:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 4028 transitions. [2018-12-09 09:37:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-12-09 09:37:11,525 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:11,525 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:37:11,526 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:11,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1406879825, now seen corresponding path program 1 times [2018-12-09 09:37:11,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:11,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:11,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:11,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:11,527 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-09 09:37:11,581 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:37:11,581 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:37:11,581 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-12-09 09:37:11,581 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [33], [35], [36], [39], [43], [44], [45], [48], [50], [53], [60], [63], [64], [65], [74], [78], [82], [85], [88], [90], [93], [96], [98], [104], [110], [118], [119], [120], [122], [125], [127], [130], [133], [136], [142], [144], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [167], [169], [170], [175], [177], [178], [179], [208], [211], [215], [221], [224], [226], [228], [229], [237], [241], [242], [245], [246], [247], [248], [249], [250], [251], [252], [253], [257], [258], [259], [261], [262], [263], [264], [265], [266], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [289], [290], [291], [292], [293], [294], [299], [300], [301], [302], [303], [304], [305], [306], [307] [2018-12-09 09:37:11,583 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:37:11,583 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:37:12,885 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 09:37:12,885 INFO L272 AbstractInterpreter]: Visited 119 different actions 1071 times. Merged at 22 different actions 132 times. Widened at 1 different actions 1 times. Performed 40180 root evaluator evaluations with a maximum evaluation depth of 3. Performed 40180 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 39 fixpoints after 8 different actions. Largest state had 135 variables. [2018-12-09 09:37:12,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:12,887 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 09:37:12,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:37:12,887 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 09:37:12,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:12,893 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 09:37:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:37:12,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:37:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 82 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 09:37:13,024 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:37:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-09 09:37:13,206 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 09:37:13,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 11 [2018-12-09 09:37:13,207 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 09:37:13,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 09:37:13,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 09:37:13,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-09 09:37:13,208 INFO L87 Difference]: Start difference. First operand 3345 states and 4028 transitions. Second operand 8 states. [2018-12-09 09:37:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:37:13,680 INFO L93 Difference]: Finished difference Result 7594 states and 9717 transitions. [2018-12-09 09:37:13,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 09:37:13,680 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2018-12-09 09:37:13,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:37:13,693 INFO L225 Difference]: With dead ends: 7594 [2018-12-09 09:37:13,693 INFO L226 Difference]: Without dead ends: 4891 [2018-12-09 09:37:13,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 362 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-12-09 09:37:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4891 states. [2018-12-09 09:37:13,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4891 to 4566. [2018-12-09 09:37:13,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4566 states. [2018-12-09 09:37:13,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4566 states to 4566 states and 5541 transitions. [2018-12-09 09:37:13,843 INFO L78 Accepts]: Start accepts. Automaton has 4566 states and 5541 transitions. Word has length 182 [2018-12-09 09:37:13,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:37:13,843 INFO L480 AbstractCegarLoop]: Abstraction has 4566 states and 5541 transitions. [2018-12-09 09:37:13,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 09:37:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4566 states and 5541 transitions. [2018-12-09 09:37:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-12-09 09:37:13,849 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:37:13,849 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:37:13,849 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:37:13,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:37:13,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1329979027, now seen corresponding path program 1 times [2018-12-09 09:37:13,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:37:13,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:13,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:37:13,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:37:13,850 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:37:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:37:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:37:13,960 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 09:37:14,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:37:14 BoogieIcfgContainer [2018-12-09 09:37:14,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 09:37:14,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 09:37:14,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 09:37:14,072 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 09:37:14,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:37:00" (3/4) ... [2018-12-09 09:37:14,073 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 09:37:14,200 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_263a9bba-80d4-4f9d-9aa3-ab5e084ceaeb/bin-2019/utaipan/witness.graphml [2018-12-09 09:37:14,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 09:37:14,201 INFO L168 Benchmark]: Toolchain (without parser) took 14686.75 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 785.9 MB). Free memory was 951.7 MB in the beginning and 1.7 GB in the end (delta: -748.8 MB). Peak memory consumption was 941.1 MB. Max. memory is 11.5 GB. [2018-12-09 09:37:14,201 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:37:14,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-09 09:37:14,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:37:14,202 INFO L168 Benchmark]: Boogie Preprocessor took 22.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 09:37:14,202 INFO L168 Benchmark]: RCFGBuilder took 328.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-12-09 09:37:14,202 INFO L168 Benchmark]: TraceAbstraction took 13879.47 ms. Allocated memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: 669.0 MB). Free memory was 1.0 GB in the beginning and 812.8 MB in the end (delta: 233.6 MB). Peak memory consumption was 902.6 MB. Max. memory is 11.5 GB. [2018-12-09 09:37:14,202 INFO L168 Benchmark]: Witness Printer took 128.61 ms. Allocated memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 7.9 MB). Free memory was 812.8 MB in the beginning and 1.7 GB in the end (delta: -887.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-12-09 09:37:14,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 328.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13879.47 ms. Allocated memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: 669.0 MB). Free memory was 1.0 GB in the beginning and 812.8 MB in the end (delta: 233.6 MB). Peak memory consumption was 902.6 MB. Max. memory is 11.5 GB. * Witness Printer took 128.61 ms. Allocated memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 7.9 MB). Free memory was 812.8 MB in the beginning and 1.7 GB in the end (delta: -887.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L364] int cleanupTimeShifts = 4; [L462] int methAndRunningLastTime ; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L765] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L439] int retValue_acc ; [L440] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L444] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L355] int retValue_acc ; [L358] retValue_acc = 1 [L359] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L446] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L446] tmp = valid_product() [L448] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L450] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L451] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L467] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L77] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE waterLevel < 2 [L521] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L112] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L149] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L169] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L290] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L585] COND FALSE !(waterLevel < 2) [L589] retValue_acc = 0 [L590] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L290] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L290] tmp = isHighWaterSensorDry() [L292] COND FALSE !(\read(tmp)) [L295] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L174] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] tmp = isHighWaterLevel() [L176] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L178] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L203] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L207] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L228] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L232] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] retValue_acc = isMethaneLevelCritical() [L234] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L207] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L207] tmp = isMethaneAlarm() [L209] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L213] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L213] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L178] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L149] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L472] int tmp ; [L473] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L477] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] tmp = isMethaneLevelCritical() [L479] COND FALSE !(\read(tmp)) [L495] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L155] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L112] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L65] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L67] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L87] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L532] COND FALSE !(\read(methaneLevelCritical)) [L535] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L87] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L112] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L140] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L142] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L147] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L169] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L172] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L187] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L155] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L472] int tmp ; [L473] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L477] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L481] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L481] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L484] COND FALSE !(\read(methAndRunningLastTime)) [L489] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L155] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L112] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L65] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L112] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L142] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L147] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L169] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L172] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L187] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L155] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L472] int tmp ; [L473] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L477] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L481] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L481] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L484] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L486] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L44] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 148 locations, 1 error locations. UNSAFE Result, 13.8s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 8.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2350 SDtfs, 2021 SDslu, 8116 SDs, 0 SdLazy, 3689 SolverSat, 619 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 875 GetRequests, 752 SyntacticMatches, 9 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4566occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.4s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9959357986940801 AbsIntWeakeningRatio, 1.0784313725490196 AbsIntAvgWeakeningVarsNumRemoved, 112.03921568627452 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 737 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1526 NumberOfCodeBlocks, 1526 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1657 ConstructedInterpolants, 0 QuantifiedInterpolants, 351685 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1871 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 381/432 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...