./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product45_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_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product45_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/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 a9369a06c8d4df60e49baaf177cf32aba3e52d93 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2018-12-08 22:12:57,014 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 22:12:57,015 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 22:12:57,021 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 22:12:57,021 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 22:12:57,022 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 22:12:57,023 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 22:12:57,023 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 22:12:57,024 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 22:12:57,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 22:12:57,025 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 22:12:57,025 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 22:12:57,026 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 22:12:57,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 22:12:57,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 22:12:57,027 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 22:12:57,027 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 22:12:57,028 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 22:12:57,029 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 22:12:57,030 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 22:12:57,030 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 22:12:57,031 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 22:12:57,032 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 22:12:57,032 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 22:12:57,032 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 22:12:57,033 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 22:12:57,034 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 22:12:57,034 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 22:12:57,034 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 22:12:57,035 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 22:12:57,035 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 22:12:57,035 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 22:12:57,035 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 22:12:57,036 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 22:12:57,036 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 22:12:57,036 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 22:12:57,036 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 22:12:57,043 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 22:12:57,044 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 22:12:57,044 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 22:12:57,044 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 22:12:57,044 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 22:12:57,044 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 22:12:57,044 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 22:12:57,045 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 22:12:57,045 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 22:12:57,046 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 22:12:57,046 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:12:57,047 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 22:12:57,047 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 22:12:57,047 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_1cb3dd8f-0aec-4951-917d-a0982eced1ba/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 -> a9369a06c8d4df60e49baaf177cf32aba3e52d93 [2018-12-08 22:12:57,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 22:12:57,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 22:12:57,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 22:12:57,078 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 22:12:57,078 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 22:12:57,079 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product45_false-unreach-call_false-termination.cil.c [2018-12-08 22:12:57,122 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/data/ac22e3a8a/39c2a43a9ac5455b80ddf5a4c6e6aeaa/FLAG5418d4c84 [2018-12-08 22:12:57,602 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 22:12:57,603 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/sv-benchmarks/c/product-lines/minepump_spec4_product45_false-unreach-call_false-termination.cil.c [2018-12-08 22:12:57,609 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/data/ac22e3a8a/39c2a43a9ac5455b80ddf5a4c6e6aeaa/FLAG5418d4c84 [2018-12-08 22:12:57,617 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/data/ac22e3a8a/39c2a43a9ac5455b80ddf5a4c6e6aeaa [2018-12-08 22:12:57,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 22:12:57,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 22:12:57,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:57,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 22:12:57,622 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 22:12:57,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57, skipping insertion in model container [2018-12-08 22:12:57,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 22:12:57,648 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 22:12:57,794 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:57,802 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 22:12:57,878 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:57,893 INFO L195 MainTranslator]: Completed translation [2018-12-08 22:12:57,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57 WrapperNode [2018-12-08 22:12:57,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:57,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:57,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 22:12:57,894 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 22:12:57,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:57,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 22:12:57,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 22:12:57,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 22:12:57,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... [2018-12-08 22:12:57,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 22:12:57,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 22:12:57,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 22:12:57,935 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 22:12:57,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/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 [2018-12-08 22:12:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 22:12:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 22:12:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-08 22:12:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-08 22:12:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 22:12:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 22:12:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 22:12:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 22:12:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 22:12:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-08 22:12:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-08 22:12:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 22:12:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 22:12:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 22:12:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 22:12:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 22:12:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 22:12:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 22:12:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-08 22:12:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 22:12:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 22:12:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-08 22:12:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-08 22:12:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-08 22:12:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 22:12:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 22:12:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 22:12:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 22:12:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 22:12:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 22:12:58,259 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 22:12:58,260 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 22:12:58,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:58 BoogieIcfgContainer [2018-12-08 22:12:58,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 22:12:58,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 22:12:58,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 22:12:58,263 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 22:12:58,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:12:57" (1/3) ... [2018-12-08 22:12:58,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e671e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:12:58, skipping insertion in model container [2018-12-08 22:12:58,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:57" (2/3) ... [2018-12-08 22:12:58,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e671e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:12:58, skipping insertion in model container [2018-12-08 22:12:58,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:58" (3/3) ... [2018-12-08 22:12:58,266 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45_false-unreach-call_false-termination.cil.c [2018-12-08 22:12:58,275 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 22:12:58,281 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 22:12:58,290 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 22:12:58,309 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 22:12:58,309 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 22:12:58,309 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 22:12:58,309 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 22:12:58,309 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 22:12:58,309 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 22:12:58,309 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 22:12:58,309 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 22:12:58,321 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2018-12-08 22:12:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 22:12:58,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:58,327 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] [2018-12-08 22:12:58,328 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:58,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:58,332 INFO L82 PathProgramCache]: Analyzing trace with hash 536400496, now seen corresponding path program 1 times [2018-12-08 22:12:58,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:58,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:58,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,361 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:58,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:58,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:58,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 22:12:58,473 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:58,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 22:12:58,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 22:12:58,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 22:12:58,485 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2018-12-08 22:12:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:58,507 INFO L93 Difference]: Finished difference Result 266 states and 329 transitions. [2018-12-08 22:12:58,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 22:12:58,508 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-08 22:12:58,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:58,514 INFO L225 Difference]: With dead ends: 266 [2018-12-08 22:12:58,514 INFO L226 Difference]: Without dead ends: 133 [2018-12-08 22:12:58,517 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 [2018-12-08 22:12:58,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-08 22:12:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-12-08 22:12:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-08 22:12:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2018-12-08 22:12:58,546 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 46 [2018-12-08 22:12:58,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:58,546 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2018-12-08 22:12:58,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 22:12:58,547 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2018-12-08 22:12:58,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 22:12:58,548 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:58,548 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] [2018-12-08 22:12:58,548 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:58,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:58,549 INFO L82 PathProgramCache]: Analyzing trace with hash 524325626, now seen corresponding path program 1 times [2018-12-08 22:12:58,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:58,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:58,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,549 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:58,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:58,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 22:12:58,605 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:58,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 22:12:58,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 22:12:58,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 22:12:58,606 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2018-12-08 22:12:58,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:58,622 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2018-12-08 22:12:58,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 22:12:58,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-08 22:12:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:58,623 INFO L225 Difference]: With dead ends: 215 [2018-12-08 22:12:58,623 INFO L226 Difference]: Without dead ends: 124 [2018-12-08 22:12:58,624 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 [2018-12-08 22:12:58,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-08 22:12:58,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-08 22:12:58,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-08 22:12:58,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2018-12-08 22:12:58,632 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 47 [2018-12-08 22:12:58,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:58,632 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2018-12-08 22:12:58,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 22:12:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2018-12-08 22:12:58,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-08 22:12:58,633 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:58,633 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] [2018-12-08 22:12:58,633 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:58,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:58,633 INFO L82 PathProgramCache]: Analyzing trace with hash -694828102, now seen corresponding path program 1 times [2018-12-08 22:12:58,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:58,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:58,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,634 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:58,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:58,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 22:12:58,709 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:58,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 22:12:58,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 22:12:58,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 22:12:58,710 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 7 states. [2018-12-08 22:12:58,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:58,858 INFO L93 Difference]: Finished difference Result 224 states and 265 transitions. [2018-12-08 22:12:58,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 22:12:58,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-08 22:12:58,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:58,859 INFO L225 Difference]: With dead ends: 224 [2018-12-08 22:12:58,860 INFO L226 Difference]: Without dead ends: 124 [2018-12-08 22:12:58,860 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 22:12:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-08 22:12:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-08 22:12:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-08 22:12:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2018-12-08 22:12:58,867 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 51 [2018-12-08 22:12:58,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:58,867 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2018-12-08 22:12:58,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 22:12:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2018-12-08 22:12:58,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-08 22:12:58,868 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:58,868 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] [2018-12-08 22:12:58,869 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:58,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:58,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1712639282, now seen corresponding path program 1 times [2018-12-08 22:12:58,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:58,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:58,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:58,870 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:58,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:58,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:12:58,916 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:58,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:12:58,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:12:58,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:58,917 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 5 states. [2018-12-08 22:12:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:59,212 INFO L93 Difference]: Finished difference Result 328 states and 392 transitions. [2018-12-08 22:12:59,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 22:12:59,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-08 22:12:59,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:59,214 INFO L225 Difference]: With dead ends: 328 [2018-12-08 22:12:59,214 INFO L226 Difference]: Without dead ends: 228 [2018-12-08 22:12:59,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 22:12:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-12-08 22:12:59,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 210. [2018-12-08 22:12:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-12-08 22:12:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 237 transitions. [2018-12-08 22:12:59,238 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 237 transitions. Word has length 64 [2018-12-08 22:12:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:59,238 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 237 transitions. [2018-12-08 22:12:59,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:12:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 237 transitions. [2018-12-08 22:12:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-08 22:12:59,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:59,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:12:59,240 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:59,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash -803781158, now seen corresponding path program 1 times [2018-12-08 22:12:59,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:59,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:59,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:59,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:59,242 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:59,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:59,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:59,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-08 22:12:59,351 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:59,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 22:12:59,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 22:12:59,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-08 22:12:59,352 INFO L87 Difference]: Start difference. First operand 210 states and 237 transitions. Second operand 10 states. [2018-12-08 22:12:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:59,622 INFO L93 Difference]: Finished difference Result 680 states and 835 transitions. [2018-12-08 22:12:59,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 22:12:59,623 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-12-08 22:12:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:59,625 INFO L225 Difference]: With dead ends: 680 [2018-12-08 22:12:59,625 INFO L226 Difference]: Without dead ends: 494 [2018-12-08 22:12:59,626 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-08 22:12:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-12-08 22:12:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 484. [2018-12-08 22:12:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-12-08 22:12:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 565 transitions. [2018-12-08 22:12:59,650 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 565 transitions. Word has length 78 [2018-12-08 22:12:59,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:59,650 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 565 transitions. [2018-12-08 22:12:59,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 22:12:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 565 transitions. [2018-12-08 22:12:59,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-08 22:12:59,652 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:59,653 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 22:12:59,653 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:59,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:59,653 INFO L82 PathProgramCache]: Analyzing trace with hash -420416119, now seen corresponding path program 1 times [2018-12-08 22:12:59,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:59,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:59,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:59,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:59,654 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-08 22:12:59,710 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:12:59,710 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:12:59,711 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-08 22:12:59,712 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [118], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [179], [180], [209], [212], [216], [222], [225], [229], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [268], [270], [271], [272], [273], [274], [275], [278], [279], [280], [281], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-08 22:12:59,733 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:12:59,734 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:12:59,946 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 22:12:59,947 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 2049 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2049 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 22:12:59,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:59,958 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 22:13:00,169 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 96.43% of their original sizes. [2018-12-08 22:13:00,170 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 22:13:00,203 INFO L418 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2018-12-08 22:13:00,203 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 22:13:00,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 22:13:00,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-12-08 22:13:00,204 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:00,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 22:13:00,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 22:13:00,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 22:13:00,206 INFO L87 Difference]: Start difference. First operand 484 states and 565 transitions. Second operand 8 states. [2018-12-08 22:13:01,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:01,161 INFO L93 Difference]: Finished difference Result 1141 states and 1373 transitions. [2018-12-08 22:13:01,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 22:13:01,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2018-12-08 22:13:01,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:01,164 INFO L225 Difference]: With dead ends: 1141 [2018-12-08 22:13:01,165 INFO L226 Difference]: Without dead ends: 681 [2018-12-08 22:13:01,166 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 22:13:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2018-12-08 22:13:01,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 665. [2018-12-08 22:13:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2018-12-08 22:13:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 777 transitions. [2018-12-08 22:13:01,215 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 777 transitions. Word has length 149 [2018-12-08 22:13:01,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:01,215 INFO L480 AbstractCegarLoop]: Abstraction has 665 states and 777 transitions. [2018-12-08 22:13:01,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 22:13:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 777 transitions. [2018-12-08 22:13:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-08 22:13:01,219 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:01,219 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 22:13:01,219 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:01,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:01,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1737603746, now seen corresponding path program 1 times [2018-12-08 22:13:01,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:01,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:01,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:01,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:01,221 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 22:13:01,272 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:01,272 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:13:01,272 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-08 22:13:01,272 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [71], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [116], [118], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [179], [180], [209], [212], [216], [222], [225], [229], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [268], [270], [271], [272], [273], [274], [275], [278], [279], [280], [281], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-08 22:13:01,275 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:13:01,275 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:13:02,022 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 22:13:02,023 INFO L272 AbstractInterpreter]: Visited 106 different actions 537 times. Merged at 16 different actions 42 times. Never widened. Performed 21485 root evaluator evaluations with a maximum evaluation depth of 3. Performed 21485 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-08 22:13:02,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:02,024 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 22:13:02,268 INFO L227 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 96.94% of their original sizes. [2018-12-08 22:13:02,268 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 22:13:02,488 INFO L418 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-12-08 22:13:02,488 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 22:13:02,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 22:13:02,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [34] imperfect sequences [5] total 37 [2018-12-08 22:13:02,488 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:02,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-12-08 22:13:02,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-12-08 22:13:02,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=928, Unknown=0, NotChecked=0, Total=1122 [2018-12-08 22:13:02,489 INFO L87 Difference]: Start difference. First operand 665 states and 777 transitions. Second operand 34 states. [2018-12-08 22:13:09,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:09,959 INFO L93 Difference]: Finished difference Result 2361 states and 2894 transitions. [2018-12-08 22:13:09,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-12-08 22:13:09,959 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 145 [2018-12-08 22:13:09,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:09,963 INFO L225 Difference]: With dead ends: 2361 [2018-12-08 22:13:09,963 INFO L226 Difference]: Without dead ends: 1720 [2018-12-08 22:13:09,965 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=756, Invalid=6384, Unknown=0, NotChecked=0, Total=7140 [2018-12-08 22:13:09,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2018-12-08 22:13:10,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1506. [2018-12-08 22:13:10,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2018-12-08 22:13:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1757 transitions. [2018-12-08 22:13:10,018 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1757 transitions. Word has length 145 [2018-12-08 22:13:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:10,018 INFO L480 AbstractCegarLoop]: Abstraction has 1506 states and 1757 transitions. [2018-12-08 22:13:10,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-12-08 22:13:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1757 transitions. [2018-12-08 22:13:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-12-08 22:13:10,020 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:10,021 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 22:13:10,021 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:10,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:10,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1212840382, now seen corresponding path program 1 times [2018-12-08 22:13:10,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:10,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:10,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:10,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:10,022 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-12-08 22:13:10,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:10,086 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:13:10,086 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-12-08 22:13:10,086 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [55], [56], [57], [58], [67], [70], [72], [73], [88], [91], [92], [93], [102], [106], [110], [113], [118], [121], [124], [126], [129], [146], [147], [159], [160], [161], [163], [166], [170], [171], [176], [178], [212], [216], [222], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [264], [265], [268], [278], [279], [280], [281], [282], [283], [284], [285], [292], [293], [300], [301], [302], [303], [304], [305], [306] [2018-12-08 22:13:10,089 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:13:10,089 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:13:10,331 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 22:13:10,331 INFO L272 AbstractInterpreter]: Visited 55 different actions 71 times. Merged at 3 different actions 3 times. Never widened. Performed 4691 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4691 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 22:13:10,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:10,333 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 22:13:10,441 INFO L227 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 96.95% of their original sizes. [2018-12-08 22:13:10,441 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 22:13:10,464 INFO L418 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-12-08 22:13:10,465 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 22:13:10,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 22:13:10,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-12-08 22:13:10,465 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:10,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 22:13:10,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 22:13:10,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-08 22:13:10,465 INFO L87 Difference]: Start difference. First operand 1506 states and 1757 transitions. Second operand 11 states. [2018-12-08 22:13:11,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:11,197 INFO L93 Difference]: Finished difference Result 2573 states and 3060 transitions. [2018-12-08 22:13:11,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 22:13:11,197 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-12-08 22:13:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:11,203 INFO L225 Difference]: With dead ends: 2573 [2018-12-08 22:13:11,203 INFO L226 Difference]: Without dead ends: 1827 [2018-12-08 22:13:11,205 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-08 22:13:11,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2018-12-08 22:13:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1800. [2018-12-08 22:13:11,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1800 states. [2018-12-08 22:13:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2100 transitions. [2018-12-08 22:13:11,269 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2100 transitions. Word has length 140 [2018-12-08 22:13:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:11,269 INFO L480 AbstractCegarLoop]: Abstraction has 1800 states and 2100 transitions. [2018-12-08 22:13:11,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 22:13:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2100 transitions. [2018-12-08 22:13:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-08 22:13:11,271 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:11,271 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 22:13:11,271 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:11,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash 271069953, now seen corresponding path program 1 times [2018-12-08 22:13:11,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:11,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:11,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:11,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:11,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 22:13:11,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:11,315 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:13:11,315 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-08 22:13:11,316 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [116], [118], [121], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [176], [178], [179], [180], [209], [212], [216], [222], [225], [229], [230], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [268], [270], [271], [272], [273], [274], [275], [278], [279], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-08 22:13:11,317 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:13:11,317 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:13:12,121 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 22:13:12,121 INFO L272 AbstractInterpreter]: Visited 118 different actions 664 times. Merged at 18 different actions 52 times. Never widened. Performed 27071 root evaluator evaluations with a maximum evaluation depth of 3. Performed 27071 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-08 22:13:12,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:12,126 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 22:13:12,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:12,126 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/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 [2018-12-08 22:13:12,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:12,133 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 22:13:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:12,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:13:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-08 22:13:12,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 22:13:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-08 22:13:12,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 22:13:12,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-12-08 22:13:12,973 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:12,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 22:13:12,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 22:13:12,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-08 22:13:12,973 INFO L87 Difference]: Start difference. First operand 1800 states and 2100 transitions. Second operand 8 states. [2018-12-08 22:13:13,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:13,168 INFO L93 Difference]: Finished difference Result 3113 states and 3670 transitions. [2018-12-08 22:13:13,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 22:13:13,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2018-12-08 22:13:13,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:13,172 INFO L225 Difference]: With dead ends: 3113 [2018-12-08 22:13:13,173 INFO L226 Difference]: Without dead ends: 1719 [2018-12-08 22:13:13,175 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 271 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-08 22:13:13,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2018-12-08 22:13:13,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1716. [2018-12-08 22:13:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1716 states. [2018-12-08 22:13:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 1973 transitions. [2018-12-08 22:13:13,265 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 1973 transitions. Word has length 145 [2018-12-08 22:13:13,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:13,265 INFO L480 AbstractCegarLoop]: Abstraction has 1716 states and 1973 transitions. [2018-12-08 22:13:13,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 22:13:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 1973 transitions. [2018-12-08 22:13:13,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-08 22:13:13,267 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:13,267 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 22:13:13,267 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:13,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:13,268 INFO L82 PathProgramCache]: Analyzing trace with hash 269230209, now seen corresponding path program 2 times [2018-12-08 22:13:13,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:13,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:13,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:13,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:13,269 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 22:13:13,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:13,341 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:13:13,341 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 22:13:13,341 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 22:13:13,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:13,341 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/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 [2018-12-08 22:13:13,347 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 22:13:13,347 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 22:13:13,404 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-12-08 22:13:13,404 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 22:13:13,408 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:13:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-08 22:13:13,453 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 22:13:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-08 22:13:13,571 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 22:13:13,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6] total 11 [2018-12-08 22:13:13,572 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:13,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 22:13:13,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 22:13:13,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-12-08 22:13:13,572 INFO L87 Difference]: Start difference. First operand 1716 states and 1973 transitions. Second operand 6 states. [2018-12-08 22:13:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:13,666 INFO L93 Difference]: Finished difference Result 1731 states and 1988 transitions. [2018-12-08 22:13:13,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 22:13:13,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-12-08 22:13:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:13,670 INFO L225 Difference]: With dead ends: 1731 [2018-12-08 22:13:13,670 INFO L226 Difference]: Without dead ends: 1728 [2018-12-08 22:13:13,670 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-12-08 22:13:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2018-12-08 22:13:13,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1716. [2018-12-08 22:13:13,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1716 states. [2018-12-08 22:13:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 1971 transitions. [2018-12-08 22:13:13,719 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 1971 transitions. Word has length 145 [2018-12-08 22:13:13,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:13,719 INFO L480 AbstractCegarLoop]: Abstraction has 1716 states and 1971 transitions. [2018-12-08 22:13:13,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 22:13:13,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 1971 transitions. [2018-12-08 22:13:13,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-08 22:13:13,721 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:13,721 INFO L402 BasicCegarLoop]: trace histogram [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, 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, 1] [2018-12-08 22:13:13,721 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:13,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:13,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2042257894, now seen corresponding path program 1 times [2018-12-08 22:13:13,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:13,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:13,722 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 22:13:13,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:13,722 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 22:13:13,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:13,761 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:13:13,761 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-08 22:13:13,761 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [56], [57], [58], [61], [63], [64], [67], [70], [72], [73], [76], [78], [84], [88], [91], [92], [93], [102], [106], [110], [113], [116], [118], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [179], [180], [209], [212], [216], [222], [225], [229], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [266], [267], [268], [270], [271], [272], [273], [276], [277], [278], [279], [280], [281], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-08 22:13:13,762 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:13:13,762 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:13:14,723 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 22:13:14,723 INFO L272 AbstractInterpreter]: Visited 120 different actions 818 times. Merged at 18 different actions 62 times. Never widened. Performed 32234 root evaluator evaluations with a maximum evaluation depth of 3. Performed 32234 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 13 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-08 22:13:14,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:14,730 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 22:13:14,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:14,730 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 22:13:14,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:14,735 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 22:13:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:14,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:13:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 22:13:14,865 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 22:13:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 22:13:15,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 22:13:15,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2018-12-08 22:13:15,090 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:15,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 22:13:15,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 22:13:15,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-12-08 22:13:15,091 INFO L87 Difference]: Start difference. First operand 1716 states and 1971 transitions. Second operand 11 states. [2018-12-08 22:13:15,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:15,686 INFO L93 Difference]: Finished difference Result 2956 states and 3682 transitions. [2018-12-08 22:13:15,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-08 22:13:15,686 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2018-12-08 22:13:15,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:15,690 INFO L225 Difference]: With dead ends: 2956 [2018-12-08 22:13:15,691 INFO L226 Difference]: Without dead ends: 1970 [2018-12-08 22:13:15,692 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 276 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-12-08 22:13:15,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2018-12-08 22:13:15,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1716. [2018-12-08 22:13:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1716 states. [2018-12-08 22:13:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 1977 transitions. [2018-12-08 22:13:15,755 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 1977 transitions. Word has length 149 [2018-12-08 22:13:15,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:15,755 INFO L480 AbstractCegarLoop]: Abstraction has 1716 states and 1977 transitions. [2018-12-08 22:13:15,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 22:13:15,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 1977 transitions. [2018-12-08 22:13:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-08 22:13:15,756 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:15,757 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 22:13:15,757 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:15,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:15,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1109943468, now seen corresponding path program 1 times [2018-12-08 22:13:15,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:15,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:15,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:15,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:15,758 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 22:13:15,793 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:15,793 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:13:15,793 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-08 22:13:15,794 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [56], [57], [58], [61], [63], [64], [67], [70], [72], [73], [76], [78], [84], [88], [91], [92], [93], [102], [106], [110], [116], [118], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [179], [180], [209], [212], [216], [222], [225], [229], [230], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [266], [267], [268], [270], [271], [272], [273], [276], [277], [278], [279], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-08 22:13:15,795 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:13:15,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:13:16,292 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 22:13:16,292 INFO L272 AbstractInterpreter]: Visited 115 different actions 430 times. Merged at 14 different actions 28 times. Never widened. Performed 15171 root evaluator evaluations with a maximum evaluation depth of 3. Performed 15171 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-08 22:13:16,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:16,294 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 22:13:16,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:16,294 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 22:13:16,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:16,300 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 22:13:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:16,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:13:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-08 22:13:16,366 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 22:13:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 22:13:16,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 22:13:16,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-08 22:13:16,502 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:16,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 22:13:16,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 22:13:16,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 22:13:16,502 INFO L87 Difference]: Start difference. First operand 1716 states and 1977 transitions. Second operand 6 states. [2018-12-08 22:13:16,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:16,561 INFO L93 Difference]: Finished difference Result 3394 states and 4015 transitions. [2018-12-08 22:13:16,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 22:13:16,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-12-08 22:13:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:16,565 INFO L225 Difference]: With dead ends: 3394 [2018-12-08 22:13:16,565 INFO L226 Difference]: Without dead ends: 1810 [2018-12-08 22:13:16,567 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 285 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 22:13:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2018-12-08 22:13:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1786. [2018-12-08 22:13:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2018-12-08 22:13:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2051 transitions. [2018-12-08 22:13:16,628 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2051 transitions. Word has length 145 [2018-12-08 22:13:16,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:16,628 INFO L480 AbstractCegarLoop]: Abstraction has 1786 states and 2051 transitions. [2018-12-08 22:13:16,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 22:13:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2051 transitions. [2018-12-08 22:13:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-08 22:13:16,629 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:16,629 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 22:13:16,630 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:16,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:16,630 INFO L82 PathProgramCache]: Analyzing trace with hash 2128292626, now seen corresponding path program 1 times [2018-12-08 22:13:16,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:16,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:16,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:16,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:16,630 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:16,688 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 22:13:16,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:13:16,689 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:13:16,689 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-08 22:13:16,689 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [56], [57], [58], [61], [63], [64], [67], [70], [72], [73], [76], [78], [84], [88], [91], [92], [93], [102], [106], [110], [116], [118], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [168], [170], [171], [179], [180], [209], [212], [216], [222], [225], [229], [230], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [266], [267], [268], [270], [271], [272], [273], [276], [277], [278], [279], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-08 22:13:16,691 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:13:16,691 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:13:16,768 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 22:13:16,768 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 1934 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1934 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 22:13:16,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:16,769 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 22:13:16,840 INFO L227 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 96.43% of their original sizes. [2018-12-08 22:13:16,840 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 22:13:16,866 INFO L418 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-12-08 22:13:16,867 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 22:13:16,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 22:13:16,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-08 22:13:16,867 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:16,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 22:13:16,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 22:13:16,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-08 22:13:16,868 INFO L87 Difference]: Start difference. First operand 1786 states and 2051 transitions. Second operand 9 states. [2018-12-08 22:13:17,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:17,282 INFO L93 Difference]: Finished difference Result 3491 states and 4022 transitions. [2018-12-08 22:13:17,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 22:13:17,282 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 145 [2018-12-08 22:13:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:17,286 INFO L225 Difference]: With dead ends: 3491 [2018-12-08 22:13:17,286 INFO L226 Difference]: Without dead ends: 1729 [2018-12-08 22:13:17,288 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-08 22:13:17,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2018-12-08 22:13:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1727. [2018-12-08 22:13:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2018-12-08 22:13:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 1984 transitions. [2018-12-08 22:13:17,348 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 1984 transitions. Word has length 145 [2018-12-08 22:13:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:17,348 INFO L480 AbstractCegarLoop]: Abstraction has 1727 states and 1984 transitions. [2018-12-08 22:13:17,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 22:13:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 1984 transitions. [2018-12-08 22:13:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-08 22:13:17,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:17,351 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-08 22:13:17,351 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:17,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:17,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1329018936, now seen corresponding path program 1 times [2018-12-08 22:13:17,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:17,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:17,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:17,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:17,352 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 22:13:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 22:13:17,462 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 22:13:17,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 10:13:17 BoogieIcfgContainer [2018-12-08 22:13:17,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 22:13:17,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 22:13:17,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 22:13:17,572 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 22:13:17,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:58" (3/4) ... [2018-12-08 22:13:17,574 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 22:13:17,674 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1cb3dd8f-0aec-4951-917d-a0982eced1ba/bin-2019/utaipan/witness.graphml [2018-12-08 22:13:17,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 22:13:17,675 INFO L168 Benchmark]: Toolchain (without parser) took 20055.83 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.1 GB). Free memory was 951.7 MB in the beginning and 1.0 GB in the end (delta: -75.9 MB). Peak memory consumption was 980.6 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:17,675 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:13:17,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -115.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:17,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.86 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. [2018-12-08 22:13:17,676 INFO L168 Benchmark]: Boogie Preprocessor took 20.97 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:17,676 INFO L168 Benchmark]: RCFGBuilder took 325.50 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:17,676 INFO L168 Benchmark]: TraceAbstraction took 19310.34 ms. Allocated memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: 978.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -61.3 MB). Peak memory consumption was 917.0 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:17,676 INFO L168 Benchmark]: Witness Printer took 102.79 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:17,678 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 273.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -115.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.86 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 20.97 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 325.50 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19310.34 ms. Allocated memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: 978.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -61.3 MB). Peak memory consumption was 917.0 MB. Max. memory is 11.5 GB. * Witness Printer took 102.79 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 317]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L117] int pumpRunning = 0; [L118] int systemActive = 1; [L491] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L715] int cleanupTimeShifts = 4; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L791] int retValue_acc ; [L792] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L796] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L937] retValue_acc = 1 [L938] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L798] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L802] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L803] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L782] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L62] tmp = __VERIFIER_nondet_int() [L64] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L66] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L66] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L125] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L198] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L897] COND FALSE !(waterLevel < 2) [L901] retValue_acc = 0 [L902] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L300] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L159] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] tmp = isHighWaterLevel() [L161] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L163] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L213] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L217] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L223] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L208] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L223] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L163] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L198] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L140] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L97] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L125] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L127] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L127] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L183] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L185] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L172] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L193] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L140] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L97] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L125] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L127] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L127] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L183] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L185] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L157] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L172] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L193] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L695] tmp = getWaterLevel() [L697] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L699] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L699] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L703] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L317] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 146 locations, 1 error locations. UNSAFE Result, 19.2s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 11.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2506 SDtfs, 2965 SDslu, 10115 SDs, 0 SdLazy, 4348 SolverSat, 1163 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 1887 GetRequests, 1662 SyntacticMatches, 26 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2385 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1800occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.6s AbstIntTime, 7 AbstIntIterations, 4 AbstIntStrong, 0.9977835456592964 AbsIntWeakeningRatio, 0.8747826086956522 AbsIntAvgWeakeningVarsNumRemoved, 51.75304347826087 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 580 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2233 NumberOfCodeBlocks, 2167 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2596 ConstructedInterpolants, 0 QuantifiedInterpolants, 492974 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3198 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 21 InterpolantComputations, 10 PerfectInterpolantSequences, 523/562 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...