./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product33_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_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/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 3e754f75ca06d39e1069a0bad88498ddd2436bb7 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-02 10:04:03,910 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 10:04:03,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 10:04:03,917 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 10:04:03,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 10:04:03,918 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 10:04:03,919 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 10:04:03,919 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 10:04:03,920 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 10:04:03,920 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 10:04:03,921 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 10:04:03,921 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 10:04:03,921 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 10:04:03,922 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 10:04:03,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 10:04:03,923 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 10:04:03,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 10:04:03,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 10:04:03,925 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 10:04:03,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 10:04:03,926 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 10:04:03,926 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 10:04:03,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 10:04:03,928 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 10:04:03,928 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 10:04:03,928 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 10:04:03,929 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 10:04:03,929 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 10:04:03,929 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 10:04:03,930 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 10:04:03,930 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 10:04:03,930 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 10:04:03,930 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 10:04:03,930 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 10:04:03,931 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 10:04:03,931 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 10:04:03,931 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 10:04:03,938 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 10:04:03,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 10:04:03,939 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 10:04:03,939 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 10:04:03,939 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 10:04:03,939 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 10:04:03,939 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 10:04:03,939 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 10:04:03,939 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 10:04:03,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 10:04:03,940 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 10:04:03,941 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 10:04:03,941 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 10:04:03,941 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 10:04:03,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 10:04:03,942 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 10:04:03,942 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 10:04:03,942 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 10:04:03,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 10:04:03,942 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 10:04:03,942 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_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/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 -> 3e754f75ca06d39e1069a0bad88498ddd2436bb7 [2018-12-02 10:04:03,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 10:04:03,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 10:04:03,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 10:04:03,968 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 10:04:03,969 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 10:04:03,969 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product33_false-unreach-call_false-termination.cil.c [2018-12-02 10:04:04,006 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/data/caf7f6b06/80cac70b3d3e4ddc8b850804931b2054/FLAG254316dc4 [2018-12-02 10:04:04,409 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 10:04:04,409 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/sv-benchmarks/c/product-lines/minepump_spec1_product33_false-unreach-call_false-termination.cil.c [2018-12-02 10:04:04,415 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/data/caf7f6b06/80cac70b3d3e4ddc8b850804931b2054/FLAG254316dc4 [2018-12-02 10:04:04,424 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/data/caf7f6b06/80cac70b3d3e4ddc8b850804931b2054 [2018-12-02 10:04:04,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 10:04:04,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 10:04:04,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 10:04:04,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 10:04:04,429 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 10:04:04,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04, skipping insertion in model container [2018-12-02 10:04:04,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 10:04:04,455 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 10:04:04,598 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:04:04,638 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 10:04:04,679 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:04:04,694 INFO L195 MainTranslator]: Completed translation [2018-12-02 10:04:04,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04 WrapperNode [2018-12-02 10:04:04,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 10:04:04,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 10:04:04,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 10:04:04,695 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 10:04:04,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 10:04:04,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 10:04:04,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 10:04:04,713 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 10:04:04,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... [2018-12-02 10:04:04,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 10:04:04,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 10:04:04,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 10:04:04,734 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 10:04:04,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/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 [2018-12-02 10:04:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 10:04:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 10:04:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 10:04:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 10:04:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 10:04:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 10:04:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 10:04:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 10:04:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 10:04:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 10:04:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 10:04:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 10:04:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 10:04:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 10:04:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 10:04:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 10:04:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 10:04:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 10:04:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 10:04:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 10:04:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 10:04:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 10:04:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 10:04:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 10:04:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 10:04:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 10:04:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 10:04:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 10:04:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 10:04:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 10:04:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 10:04:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 10:04:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 10:04:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 10:04:05,047 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 10:04:05,047 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 10:04:05,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:04:05 BoogieIcfgContainer [2018-12-02 10:04:05,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 10:04:05,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 10:04:05,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 10:04:05,050 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 10:04:05,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:04:04" (1/3) ... [2018-12-02 10:04:05,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74647244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:04:05, skipping insertion in model container [2018-12-02 10:04:05,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:04:04" (2/3) ... [2018-12-02 10:04:05,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74647244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:04:05, skipping insertion in model container [2018-12-02 10:04:05,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:04:05" (3/3) ... [2018-12-02 10:04:05,052 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33_false-unreach-call_false-termination.cil.c [2018-12-02 10:04:05,058 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 10:04:05,062 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 10:04:05,071 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 10:04:05,089 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 10:04:05,089 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 10:04:05,089 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 10:04:05,089 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 10:04:05,089 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 10:04:05,089 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 10:04:05,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 10:04:05,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 10:04:05,100 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2018-12-02 10:04:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 10:04:05,105 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:05,105 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] [2018-12-02 10:04:05,106 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:05,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:05,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1800961030, now seen corresponding path program 1 times [2018-12-02 10:04:05,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:05,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:05,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,139 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:05,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:05,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 10:04:05,246 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:05,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 10:04:05,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 10:04:05,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 10:04:05,258 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2018-12-02 10:04:05,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:05,278 INFO L93 Difference]: Finished difference Result 210 states and 263 transitions. [2018-12-02 10:04:05,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 10:04:05,279 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 10:04:05,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:05,285 INFO L225 Difference]: With dead ends: 210 [2018-12-02 10:04:05,285 INFO L226 Difference]: Without dead ends: 105 [2018-12-02 10:04:05,287 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 [2018-12-02 10:04:05,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-12-02 10:04:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-12-02 10:04:05,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-02 10:04:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2018-12-02 10:04:05,315 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2018-12-02 10:04:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:05,315 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2018-12-02 10:04:05,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 10:04:05,315 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2018-12-02 10:04:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 10:04:05,317 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:05,317 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] [2018-12-02 10:04:05,317 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:05,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:05,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1774447568, now seen corresponding path program 1 times [2018-12-02 10:04:05,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:05,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:05,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,318 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:05,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:05,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 10:04:05,364 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:05,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 10:04:05,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 10:04:05,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 10:04:05,365 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 3 states. [2018-12-02 10:04:05,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:05,376 INFO L93 Difference]: Finished difference Result 159 states and 185 transitions. [2018-12-02 10:04:05,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 10:04:05,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 10:04:05,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:05,378 INFO L225 Difference]: With dead ends: 159 [2018-12-02 10:04:05,378 INFO L226 Difference]: Without dead ends: 96 [2018-12-02 10:04:05,378 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 [2018-12-02 10:04:05,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-02 10:04:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-02 10:04:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-02 10:04:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2018-12-02 10:04:05,385 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2018-12-02 10:04:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:05,385 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2018-12-02 10:04:05,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 10:04:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2018-12-02 10:04:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 10:04:05,386 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:05,387 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] [2018-12-02 10:04:05,387 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:05,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:05,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2067009935, now seen corresponding path program 1 times [2018-12-02 10:04:05,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:05,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:05,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,388 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:05,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:05,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 10:04:05,463 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:05,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 10:04:05,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 10:04:05,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 10:04:05,464 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 7 states. [2018-12-02 10:04:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:05,632 INFO L93 Difference]: Finished difference Result 168 states and 199 transitions. [2018-12-02 10:04:05,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 10:04:05,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 10:04:05,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:05,633 INFO L225 Difference]: With dead ends: 168 [2018-12-02 10:04:05,633 INFO L226 Difference]: Without dead ends: 96 [2018-12-02 10:04:05,634 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 [2018-12-02 10:04:05,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-02 10:04:05,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-02 10:04:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-02 10:04:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2018-12-02 10:04:05,640 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2018-12-02 10:04:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:05,640 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2018-12-02 10:04:05,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 10:04:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2018-12-02 10:04:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-02 10:04:05,641 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:05,642 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] [2018-12-02 10:04:05,642 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:05,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:05,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1760111872, now seen corresponding path program 1 times [2018-12-02 10:04:05,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:05,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:05,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,643 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:05,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:05,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 10:04:05,709 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:05,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 10:04:05,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 10:04:05,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 10:04:05,710 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 5 states. [2018-12-02 10:04:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:05,936 INFO L93 Difference]: Finished difference Result 251 states and 303 transitions. [2018-12-02 10:04:05,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 10:04:05,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2018-12-02 10:04:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:05,939 INFO L225 Difference]: With dead ends: 251 [2018-12-02 10:04:05,939 INFO L226 Difference]: Without dead ends: 179 [2018-12-02 10:04:05,939 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-02 10:04:05,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-12-02 10:04:05,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2018-12-02 10:04:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-12-02 10:04:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2018-12-02 10:04:05,956 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2018-12-02 10:04:05,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:05,957 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2018-12-02 10:04:05,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 10:04:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2018-12-02 10:04:05,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-02 10:04:05,959 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:05,959 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] [2018-12-02 10:04:05,959 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:05,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:05,959 INFO L82 PathProgramCache]: Analyzing trace with hash 540343609, now seen corresponding path program 1 times [2018-12-02 10:04:05,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:05,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:05,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:05,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:06,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:06,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 10:04:06,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:06,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 10:04:06,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 10:04:06,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 10:04:06,041 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 6 states. [2018-12-02 10:04:06,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:06,134 INFO L93 Difference]: Finished difference Result 420 states and 502 transitions. [2018-12-02 10:04:06,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 10:04:06,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2018-12-02 10:04:06,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:06,137 INFO L225 Difference]: With dead ends: 420 [2018-12-02 10:04:06,137 INFO L226 Difference]: Without dead ends: 283 [2018-12-02 10:04:06,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 10:04:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-12-02 10:04:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 277. [2018-12-02 10:04:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-12-02 10:04:06,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 320 transitions. [2018-12-02 10:04:06,162 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 320 transitions. Word has length 73 [2018-12-02 10:04:06,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:06,162 INFO L480 AbstractCegarLoop]: Abstraction has 277 states and 320 transitions. [2018-12-02 10:04:06,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 10:04:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 320 transitions. [2018-12-02 10:04:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-02 10:04:06,164 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:06,164 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] [2018-12-02 10:04:06,164 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:06,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:06,165 INFO L82 PathProgramCache]: Analyzing trace with hash -700448675, now seen corresponding path program 1 times [2018-12-02 10:04:06,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:06,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:06,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,166 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:06,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:06,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 10:04:06,238 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:06,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 10:04:06,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 10:04:06,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 10:04:06,239 INFO L87 Difference]: Start difference. First operand 277 states and 320 transitions. Second operand 7 states. [2018-12-02 10:04:06,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:06,522 INFO L93 Difference]: Finished difference Result 310 states and 369 transitions. [2018-12-02 10:04:06,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 10:04:06,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2018-12-02 10:04:06,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:06,524 INFO L225 Difference]: With dead ends: 310 [2018-12-02 10:04:06,524 INFO L226 Difference]: Without dead ends: 307 [2018-12-02 10:04:06,525 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 10:04:06,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-12-02 10:04:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 277. [2018-12-02 10:04:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-12-02 10:04:06,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 319 transitions. [2018-12-02 10:04:06,537 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 319 transitions. Word has length 77 [2018-12-02 10:04:06,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:06,537 INFO L480 AbstractCegarLoop]: Abstraction has 277 states and 319 transitions. [2018-12-02 10:04:06,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 10:04:06,537 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 319 transitions. [2018-12-02 10:04:06,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 10:04:06,538 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:06,539 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] [2018-12-02 10:04:06,539 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:06,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:06,539 INFO L82 PathProgramCache]: Analyzing trace with hash -723373757, now seen corresponding path program 1 times [2018-12-02 10:04:06,539 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:06,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:06,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,540 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:06,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:06,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 10:04:06,589 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:06,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 10:04:06,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 10:04:06,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 10:04:06,590 INFO L87 Difference]: Start difference. First operand 277 states and 319 transitions. Second operand 6 states. [2018-12-02 10:04:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:06,623 INFO L93 Difference]: Finished difference Result 540 states and 632 transitions. [2018-12-02 10:04:06,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 10:04:06,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-02 10:04:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:06,625 INFO L225 Difference]: With dead ends: 540 [2018-12-02 10:04:06,625 INFO L226 Difference]: Without dead ends: 287 [2018-12-02 10:04:06,625 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 10:04:06,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-12-02 10:04:06,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2018-12-02 10:04:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2018-12-02 10:04:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 329 transitions. [2018-12-02 10:04:06,635 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 329 transitions. Word has length 78 [2018-12-02 10:04:06,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:06,635 INFO L480 AbstractCegarLoop]: Abstraction has 287 states and 329 transitions. [2018-12-02 10:04:06,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 10:04:06,636 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 329 transitions. [2018-12-02 10:04:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 10:04:06,636 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:06,636 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] [2018-12-02 10:04:06,636 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:06,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:06,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1232846847, now seen corresponding path program 1 times [2018-12-02 10:04:06,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:06,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:06,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,637 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:06,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:06,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 10:04:06,695 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:06,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 10:04:06,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 10:04:06,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 10:04:06,695 INFO L87 Difference]: Start difference. First operand 287 states and 329 transitions. Second operand 8 states. [2018-12-02 10:04:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:06,722 INFO L93 Difference]: Finished difference Result 564 states and 664 transitions. [2018-12-02 10:04:06,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 10:04:06,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2018-12-02 10:04:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:06,724 INFO L225 Difference]: With dead ends: 564 [2018-12-02 10:04:06,724 INFO L226 Difference]: Without dead ends: 301 [2018-12-02 10:04:06,725 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 10:04:06,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-12-02 10:04:06,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 295. [2018-12-02 10:04:06,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-12-02 10:04:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 337 transitions. [2018-12-02 10:04:06,739 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 337 transitions. Word has length 78 [2018-12-02 10:04:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:06,740 INFO L480 AbstractCegarLoop]: Abstraction has 295 states and 337 transitions. [2018-12-02 10:04:06,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 10:04:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 337 transitions. [2018-12-02 10:04:06,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 10:04:06,741 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:06,741 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] [2018-12-02 10:04:06,741 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:06,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:06,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1052016608, now seen corresponding path program 1 times [2018-12-02 10:04:06,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:06,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:06,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,743 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:04:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:04:06,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:04:06,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 10:04:06,782 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:04:06,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 10:04:06,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 10:04:06,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 10:04:06,783 INFO L87 Difference]: Start difference. First operand 295 states and 337 transitions. Second operand 4 states. [2018-12-02 10:04:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:04:06,889 INFO L93 Difference]: Finished difference Result 887 states and 1072 transitions. [2018-12-02 10:04:06,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 10:04:06,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2018-12-02 10:04:06,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:04:06,893 INFO L225 Difference]: With dead ends: 887 [2018-12-02 10:04:06,893 INFO L226 Difference]: Without dead ends: 616 [2018-12-02 10:04:06,894 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 10:04:06,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2018-12-02 10:04:06,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 409. [2018-12-02 10:04:06,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-12-02 10:04:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 464 transitions. [2018-12-02 10:04:06,916 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 464 transitions. Word has length 78 [2018-12-02 10:04:06,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:04:06,917 INFO L480 AbstractCegarLoop]: Abstraction has 409 states and 464 transitions. [2018-12-02 10:04:06,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 10:04:06,917 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 464 transitions. [2018-12-02 10:04:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-02 10:04:06,918 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:04:06,918 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, 1, 1, 1, 1] [2018-12-02 10:04:06,918 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 10:04:06,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:04:06,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1818491974, now seen corresponding path program 1 times [2018-12-02 10:04:06,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:04:06,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:04:06,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:04:06,920 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:04:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:04:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:04:07,000 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 10:04:07,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:04:07 BoogieIcfgContainer [2018-12-02 10:04:07,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 10:04:07,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 10:04:07,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 10:04:07,096 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 10:04:07,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:04:05" (3/4) ... [2018-12-02 10:04:07,098 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 10:04:07,178 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_215df1e4-d6ec-4977-8e76-6b1f3f0d02d4/bin-2019/utaipan/witness.graphml [2018-12-02 10:04:07,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 10:04:07,179 INFO L168 Benchmark]: Toolchain (without parser) took 2752.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 954.9 MB in the beginning and 947.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 200.2 MB. Max. memory is 11.5 GB. [2018-12-02 10:04:07,179 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:04:07,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -115.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-12-02 10:04:07,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.55 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. [2018-12-02 10:04:07,180 INFO L168 Benchmark]: Boogie Preprocessor took 20.82 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-02 10:04:07,180 INFO L168 Benchmark]: RCFGBuilder took 313.48 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: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2018-12-02 10:04:07,180 INFO L168 Benchmark]: TraceAbstraction took 2047.81 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 101.2 MB). Free memory was 1.0 GB in the beginning and 977.2 MB in the end (delta: 37.8 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. [2018-12-02 10:04:07,181 INFO L168 Benchmark]: Witness Printer took 82.02 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 947.7 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-02 10:04:07,182 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -115.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.55 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 20.82 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 313.48 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: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2047.81 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 101.2 MB). Free memory was 1.0 GB in the beginning and 977.2 MB in the end (delta: 37.8 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. * Witness Printer took 82.02 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 947.7 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int pumpRunning = 0; [L425] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] 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] [L761] 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] [L762] 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] [L763] 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] [L674] int retValue_acc ; [L677] retValue_acc = 1 [L678] 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] [L763] 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] [L763] tmp = valid_product() [L765] 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] [L767] 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] [L768] 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] [L750] 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] [L581] int splverifierCounter ; [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L585] int tmp___2 ; [L588] 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] [L590] 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] [L592] 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] [L598] tmp = __VERIFIER_nondet_int() [L600] 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] [L602] 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] [L824] COND TRUE waterLevel < 2 [L825] 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] [L602] 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] [L608] tmp___0 = __VERIFIER_nondet_int() [L610] COND TRUE \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=1, waterLevel=2] [L612] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] COND FALSE !(\read(methaneLevelCritical)) [L839] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L612] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L618] tmp___2 = __VERIFIER_nondet_int() [L620] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L633] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L439] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L461] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] int retValue_acc ; [L559] int tmp ; [L560] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L886] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L889] COND FALSE !(waterLevel < 2) [L893] retValue_acc = 0 [L894] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L564] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] tmp = isHighWaterSensorDry() [L566] COND FALSE !(\read(tmp)) [L569] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L571] retValue_acc = tmp___0 [L572] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L466] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] tmp = isHighWaterLevel() [L468] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L470] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L489] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L470] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L441] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L447] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L780] int tmp ; [L781] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L785] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L785] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L785] tmp = isMethaneLevelCritical() [L787] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L513] int retValue_acc ; [L516] retValue_acc = pumpRunning [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L789] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] tmp___0 = isPumpRunning() [L791] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L793] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L410] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 118 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1084 SDtfs, 677 SDslu, 2228 SDs, 0 SdLazy, 788 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 267 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 66014 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...