./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product37_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_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product37_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/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 903a1f53bc072e1ab483040d7a35aae5e2bdf412 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:18:32,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:18:32,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:18:32,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:18:32,732 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:18:32,732 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:18:32,733 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:18:32,734 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:18:32,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:18:32,735 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:18:32,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:18:32,735 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:18:32,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:18:32,736 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:18:32,737 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:18:32,737 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:18:32,738 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:18:32,739 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:18:32,740 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:18:32,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:18:32,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:18:32,741 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:18:32,742 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:18:32,743 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:18:32,743 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:18:32,743 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:18:32,744 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:18:32,744 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:18:32,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:18:32,745 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:18:32,745 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:18:32,745 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:18:32,746 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:18:32,746 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:18:32,746 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:18:32,746 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:18:32,747 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 22:18:32,754 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:18:32,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:18:32,755 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 22:18:32,755 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 22:18:32,755 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 22:18:32,756 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:18:32,756 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:18:32,756 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:18:32,756 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:18:32,756 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:18:32,756 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 22:18:32,756 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 22:18:32,757 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:18:32,757 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:18:32,757 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:18:32,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 22:18:32,758 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 22:18:32,758 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:18:32,758 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 22:18:32,758 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 22:18:32,758 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_550633a4-5bca-4c27-974a-81b3dd231231/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 -> 903a1f53bc072e1ab483040d7a35aae5e2bdf412 [2018-12-02 22:18:32,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:18:32,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:18:32,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:18:32,785 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:18:32,785 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:18:32,785 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product37_false-unreach-call_false-termination.cil.c [2018-12-02 22:18:32,819 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/data/e0a897e91/2ac1c06cfce64faea534864c5ad798f7/FLAG8708f7021 [2018-12-02 22:18:33,183 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:18:33,183 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/sv-benchmarks/c/product-lines/minepump_spec4_product37_false-unreach-call_false-termination.cil.c [2018-12-02 22:18:33,189 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/data/e0a897e91/2ac1c06cfce64faea534864c5ad798f7/FLAG8708f7021 [2018-12-02 22:18:33,552 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/data/e0a897e91/2ac1c06cfce64faea534864c5ad798f7 [2018-12-02 22:18:33,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:18:33,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:18:33,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:18:33,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:18:33,558 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:18:33,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67523692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33, skipping insertion in model container [2018-12-02 22:18:33,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:18:33,595 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:18:33,741 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:18:33,749 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:18:33,838 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:18:33,860 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:18:33,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33 WrapperNode [2018-12-02 22:18:33,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:18:33,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:18:33,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:18:33,861 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:18:33,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:18:33,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:18:33,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:18:33,891 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:18:33,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... [2018-12-02 22:18:33,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:18:33,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:18:33,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:18:33,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:18:33,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/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 22:18:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 22:18:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 22:18:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 22:18:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 22:18:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:18:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:18:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:18:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 22:18:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 22:18:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 22:18:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 22:18:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 22:18:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 22:18:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 22:18:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 22:18:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 22:18:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 22:18:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 22:18:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 22:18:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 22:18:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 22:18:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 22:18:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 22:18:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 22:18:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 22:18:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 22:18:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 22:18:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 22:18:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 22:18:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 22:18:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 22:18:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 22:18:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 22:18:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 22:18:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:18:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:18:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 22:18:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 22:18:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 22:18:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 22:18:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:18:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:18:34,296 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:18:34,296 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 22:18:34,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:18:34 BoogieIcfgContainer [2018-12-02 22:18:34,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:18:34,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:18:34,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:18:34,299 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:18:34,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:18:33" (1/3) ... [2018-12-02 22:18:34,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f779c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:18:34, skipping insertion in model container [2018-12-02 22:18:34,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:33" (2/3) ... [2018-12-02 22:18:34,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f779c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:18:34, skipping insertion in model container [2018-12-02 22:18:34,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:18:34" (3/3) ... [2018-12-02 22:18:34,301 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37_false-unreach-call_false-termination.cil.c [2018-12-02 22:18:34,308 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:18:34,313 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:18:34,322 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:18:34,343 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:18:34,344 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 22:18:34,344 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:18:34,344 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:18:34,344 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:18:34,344 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:18:34,344 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:18:34,344 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:18:34,358 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2018-12-02 22:18:34,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 22:18:34,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:34,364 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 22:18:34,365 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:34,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:34,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1637265317, now seen corresponding path program 1 times [2018-12-02 22:18:34,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:34,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:34,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,399 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:34,513 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 22:18:34,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:18:34,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:18:34,514 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:34,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 22:18:34,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 22:18:34,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 22:18:34,526 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 2 states. [2018-12-02 22:18:34,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:34,548 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2018-12-02 22:18:34,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 22:18:34,549 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 22:18:34,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:34,555 INFO L225 Difference]: With dead ends: 252 [2018-12-02 22:18:34,556 INFO L226 Difference]: Without dead ends: 126 [2018-12-02 22:18:34,558 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 22:18:34,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-12-02 22:18:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-12-02 22:18:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-12-02 22:18:34,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2018-12-02 22:18:34,586 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2018-12-02 22:18:34,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:34,587 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2018-12-02 22:18:34,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 22:18:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2018-12-02 22:18:34,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 22:18:34,588 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:34,588 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 22:18:34,588 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:34,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:34,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1526343538, now seen corresponding path program 1 times [2018-12-02 22:18:34,589 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:34,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:34,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,590 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:34,635 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 22:18:34,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:18:34,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 22:18:34,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:34,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:18:34,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:18:34,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:18:34,637 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 3 states. [2018-12-02 22:18:34,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:34,649 INFO L93 Difference]: Finished difference Result 201 states and 233 transitions. [2018-12-02 22:18:34,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:18:34,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 22:18:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:34,650 INFO L225 Difference]: With dead ends: 201 [2018-12-02 22:18:34,650 INFO L226 Difference]: Without dead ends: 117 [2018-12-02 22:18:34,651 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 22:18:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-12-02 22:18:34,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-12-02 22:18:34,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-12-02 22:18:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2018-12-02 22:18:34,658 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 47 [2018-12-02 22:18:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:34,658 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2018-12-02 22:18:34,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:18:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2018-12-02 22:18:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 22:18:34,659 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:34,659 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 22:18:34,659 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:34,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1560682151, now seen corresponding path program 1 times [2018-12-02 22:18:34,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:34,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:34,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,660 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:34,725 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 22:18:34,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:18:34,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 22:18:34,726 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:34,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 22:18:34,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 22:18:34,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 22:18:34,726 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 7 states. [2018-12-02 22:18:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:34,856 INFO L93 Difference]: Finished difference Result 210 states and 247 transitions. [2018-12-02 22:18:34,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 22:18:34,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 22:18:34,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:34,857 INFO L225 Difference]: With dead ends: 210 [2018-12-02 22:18:34,857 INFO L226 Difference]: Without dead ends: 117 [2018-12-02 22:18:34,858 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 22:18:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-12-02 22:18:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-12-02 22:18:34,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-12-02 22:18:34,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2018-12-02 22:18:34,865 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 51 [2018-12-02 22:18:34,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:34,865 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2018-12-02 22:18:34,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 22:18:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2018-12-02 22:18:34,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-02 22:18:34,866 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:34,866 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] [2018-12-02 22:18:34,867 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:34,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:34,867 INFO L82 PathProgramCache]: Analyzing trace with hash 153041462, now seen corresponding path program 1 times [2018-12-02 22:18:34,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:34,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:34,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:34,868 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:34,917 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 22:18:34,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:18:34,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 22:18:34,917 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:34,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 22:18:34,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 22:18:34,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 22:18:34,918 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand 5 states. [2018-12-02 22:18:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:35,184 INFO L93 Difference]: Finished difference Result 304 states and 365 transitions. [2018-12-02 22:18:35,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:18:35,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-02 22:18:35,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:35,185 INFO L225 Difference]: With dead ends: 304 [2018-12-02 22:18:35,186 INFO L226 Difference]: Without dead ends: 211 [2018-12-02 22:18:35,186 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 22:18:35,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-12-02 22:18:35,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 193. [2018-12-02 22:18:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-12-02 22:18:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 219 transitions. [2018-12-02 22:18:35,201 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 219 transitions. Word has length 64 [2018-12-02 22:18:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:35,201 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 219 transitions. [2018-12-02 22:18:35,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 22:18:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 219 transitions. [2018-12-02 22:18:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 22:18:35,203 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:35,203 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 22:18:35,203 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:35,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:35,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2097946015, now seen corresponding path program 1 times [2018-12-02 22:18:35,203 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:35,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:35,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:35,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:35,204 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:35,281 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 22:18:35,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:18:35,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 22:18:35,281 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:35,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 22:18:35,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 22:18:35,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:18:35,282 INFO L87 Difference]: Start difference. First operand 193 states and 219 transitions. Second operand 10 states. [2018-12-02 22:18:35,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:35,576 INFO L93 Difference]: Finished difference Result 612 states and 763 transitions. [2018-12-02 22:18:35,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 22:18:35,577 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-12-02 22:18:35,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:35,579 INFO L225 Difference]: With dead ends: 612 [2018-12-02 22:18:35,579 INFO L226 Difference]: Without dead ends: 443 [2018-12-02 22:18:35,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-02 22:18:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2018-12-02 22:18:35,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 433. [2018-12-02 22:18:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2018-12-02 22:18:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 511 transitions. [2018-12-02 22:18:35,613 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 511 transitions. Word has length 78 [2018-12-02 22:18:35,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:35,613 INFO L480 AbstractCegarLoop]: Abstraction has 433 states and 511 transitions. [2018-12-02 22:18:35,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 22:18:35,614 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 511 transitions. [2018-12-02 22:18:35,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-02 22:18:35,616 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:35,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:35,617 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:35,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:35,618 INFO L82 PathProgramCache]: Analyzing trace with hash -65818166, now seen corresponding path program 1 times [2018-12-02 22:18:35,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:35,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:35,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:35,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:35,619 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 22:18:35,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:18:35,697 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:18:35,698 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-02 22:18:35,700 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [54], [57], [59], [62], [69], [72], [74], [83], [87], [91], [94], [97], [99], [105], [107], [110], [125], [126], [127], [128], [129], [130], [131], [133], [136], [140], [141], [149], [150], [179], [182], [186], [192], [195], [199], [200], [204], [207], [209], [212], [222], [225], [229], [230], [233], [234], [235], [236], [237], [239], [240], [241], [242], [243], [244], [245], [246], [247], [249], [251], [252], [253], [254], [255], [256], [259], [260], [261], [262], [265], [266], [269], [270], [275], [276], [277], [278], [279], [280], [281], [282], [283], [285], [286], [287], [288] [2018-12-02 22:18:35,729 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:18:35,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:18:36,860 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 22:18:36,860 INFO L272 AbstractInterpreter]: Visited 110 different actions 559 times. Merged at 18 different actions 61 times. Never widened. Performed 22017 root evaluator evaluations with a maximum evaluation depth of 3. Performed 22017 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 22:18:36,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:36,870 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 22:18:36,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:18:36,870 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/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 [2018-12-02 22:18:36,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:36,877 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 22:18:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:36,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:18:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 22:18:37,074 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 22:18:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 22:18:37,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 22:18:37,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2018-12-02 22:18:37,316 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:37,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 22:18:37,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 22:18:37,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-12-02 22:18:37,317 INFO L87 Difference]: Start difference. First operand 433 states and 511 transitions. Second operand 11 states. [2018-12-02 22:18:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:37,953 INFO L93 Difference]: Finished difference Result 944 states and 1239 transitions. [2018-12-02 22:18:37,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-02 22:18:37,953 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 130 [2018-12-02 22:18:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:37,957 INFO L225 Difference]: With dead ends: 944 [2018-12-02 22:18:37,957 INFO L226 Difference]: Without dead ends: 631 [2018-12-02 22:18:37,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 238 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-12-02 22:18:37,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2018-12-02 22:18:37,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 545. [2018-12-02 22:18:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2018-12-02 22:18:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 656 transitions. [2018-12-02 22:18:37,995 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 656 transitions. Word has length 130 [2018-12-02 22:18:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:37,996 INFO L480 AbstractCegarLoop]: Abstraction has 545 states and 656 transitions. [2018-12-02 22:18:37,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 22:18:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 656 transitions. [2018-12-02 22:18:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-02 22:18:37,997 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:37,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:37,998 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:37,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:37,998 INFO L82 PathProgramCache]: Analyzing trace with hash -2059747388, now seen corresponding path program 1 times [2018-12-02 22:18:37,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:37,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:37,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:37,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:37,999 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 22:18:38,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:18:38,056 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:18:38,057 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-12-02 22:18:38,057 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [54], [57], [59], [62], [69], [72], [74], [83], [87], [91], [97], [99], [105], [107], [110], [125], [126], [127], [128], [129], [130], [131], [133], [136], [140], [141], [149], [150], [179], [182], [186], [192], [195], [199], [200], [204], [207], [209], [212], [222], [230], [233], [234], [235], [236], [237], [239], [240], [241], [242], [243], [244], [245], [246], [247], [249], [251], [252], [253], [254], [255], [256], [259], [260], [265], [266], [269], [270], [275], [276], [277], [278], [279], [280], [281], [282], [283], [285], [286], [287], [288] [2018-12-02 22:18:38,059 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:18:38,059 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:18:38,543 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 22:18:38,543 INFO L272 AbstractInterpreter]: Visited 105 different actions 363 times. Merged at 16 different actions 33 times. Never widened. Performed 12484 root evaluator evaluations with a maximum evaluation depth of 3. Performed 12484 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-02 22:18:38,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:38,557 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 22:18:38,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:18:38,557 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/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 [2018-12-02 22:18:38,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:38,563 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 22:18:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:38,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:18:38,635 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 22:18:38,635 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 22:18:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 22:18:38,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 22:18:38,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-02 22:18:38,766 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:38,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:18:38,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:18:38,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:18:38,767 INFO L87 Difference]: Start difference. First operand 545 states and 656 transitions. Second operand 6 states. [2018-12-02 22:18:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:38,803 INFO L93 Difference]: Finished difference Result 1086 states and 1338 transitions. [2018-12-02 22:18:38,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 22:18:38,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-12-02 22:18:38,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:38,805 INFO L225 Difference]: With dead ends: 1086 [2018-12-02 22:18:38,805 INFO L226 Difference]: Without dead ends: 565 [2018-12-02 22:18:38,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 249 SyntacticMatches, 4 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 22:18:38,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2018-12-02 22:18:38,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2018-12-02 22:18:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2018-12-02 22:18:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 678 transitions. [2018-12-02 22:18:38,825 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 678 transitions. Word has length 126 [2018-12-02 22:18:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:38,825 INFO L480 AbstractCegarLoop]: Abstraction has 565 states and 678 transitions. [2018-12-02 22:18:38,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:18:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 678 transitions. [2018-12-02 22:18:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-02 22:18:38,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:38,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:38,827 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:38,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:38,827 INFO L82 PathProgramCache]: Analyzing trace with hash -2032681786, now seen corresponding path program 1 times [2018-12-02 22:18:38,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:38,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:38,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:38,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:38,827 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:38,884 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 22:18:38,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:18:38,884 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:18:38,885 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-12-02 22:18:38,885 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [54], [57], [59], [62], [69], [72], [74], [83], [87], [91], [97], [99], [105], [107], [110], [125], [126], [127], [128], [129], [130], [131], [133], [138], [140], [141], [149], [150], [179], [182], [186], [192], [195], [199], [200], [204], [207], [209], [212], [222], [230], [233], [234], [235], [236], [237], [239], [240], [241], [242], [243], [244], [245], [246], [247], [249], [251], [252], [253], [254], [255], [256], [259], [260], [265], [266], [269], [270], [275], [276], [277], [278], [279], [280], [281], [282], [283], [285], [286], [287], [288] [2018-12-02 22:18:38,887 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:18:38,887 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:18:38,954 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 22:18:38,955 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 1933 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1933 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 22:18:38,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:38,956 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 22:18:39,081 INFO L227 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 96.43% of their original sizes. [2018-12-02 22:18:39,081 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 22:18:39,120 INFO L418 sIntCurrentIteration]: We unified 125 AI predicates to 125 [2018-12-02 22:18:39,121 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 22:18:39,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 22:18:39,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-02 22:18:39,121 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:39,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 22:18:39,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 22:18:39,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-02 22:18:39,122 INFO L87 Difference]: Start difference. First operand 565 states and 678 transitions. Second operand 9 states. [2018-12-02 22:18:39,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:39,655 INFO L93 Difference]: Finished difference Result 1161 states and 1403 transitions. [2018-12-02 22:18:39,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:18:39,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 126 [2018-12-02 22:18:39,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:39,656 INFO L225 Difference]: With dead ends: 1161 [2018-12-02 22:18:39,656 INFO L226 Difference]: Without dead ends: 620 [2018-12-02 22:18:39,658 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-02 22:18:39,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2018-12-02 22:18:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 618. [2018-12-02 22:18:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2018-12-02 22:18:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 736 transitions. [2018-12-02 22:18:39,678 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 736 transitions. Word has length 126 [2018-12-02 22:18:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:39,678 INFO L480 AbstractCegarLoop]: Abstraction has 618 states and 736 transitions. [2018-12-02 22:18:39,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 22:18:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 736 transitions. [2018-12-02 22:18:39,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-02 22:18:39,679 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:39,679 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:39,679 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:39,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:39,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1113594466, now seen corresponding path program 1 times [2018-12-02 22:18:39,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:39,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:39,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:39,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:39,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:39,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 22:18:39,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:18:39,732 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:18:39,733 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-02 22:18:39,733 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [54], [57], [59], [62], [69], [72], [74], [83], [87], [91], [97], [99], [102], [105], [107], [110], [125], [126], [127], [128], [129], [130], [131], [133], [138], [140], [141], [146], [148], [149], [150], [179], [182], [186], [192], [195], [199], [200], [204], [207], [209], [212], [222], [230], [233], [234], [235], [236], [237], [239], [240], [241], [242], [243], [244], [245], [246], [247], [249], [251], [252], [253], [254], [255], [256], [259], [260], [263], [264], [265], [266], [269], [270], [275], [276], [277], [278], [279], [280], [281], [282], [283], [285], [286], [287], [288] [2018-12-02 22:18:39,734 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:18:39,734 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:18:39,906 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 22:18:39,906 INFO L272 AbstractInterpreter]: Visited 57 different actions 79 times. Merged at 3 different actions 3 times. Never widened. Performed 4605 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4605 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 22:18:39,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:39,909 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 22:18:40,028 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 96.43% of their original sizes. [2018-12-02 22:18:40,028 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 22:18:40,091 INFO L418 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-12-02 22:18:40,091 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 22:18:40,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 22:18:40,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2018-12-02 22:18:40,092 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:40,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 22:18:40,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 22:18:40,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-02 22:18:40,092 INFO L87 Difference]: Start difference. First operand 618 states and 736 transitions. Second operand 12 states. [2018-12-02 22:18:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:40,955 INFO L93 Difference]: Finished difference Result 1174 states and 1416 transitions. [2018-12-02 22:18:40,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 22:18:40,955 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2018-12-02 22:18:40,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:40,958 INFO L225 Difference]: With dead ends: 1174 [2018-12-02 22:18:40,958 INFO L226 Difference]: Without dead ends: 633 [2018-12-02 22:18:40,959 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-12-02 22:18:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-12-02 22:18:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 578. [2018-12-02 22:18:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2018-12-02 22:18:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 681 transitions. [2018-12-02 22:18:40,989 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 681 transitions. Word has length 130 [2018-12-02 22:18:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:40,989 INFO L480 AbstractCegarLoop]: Abstraction has 578 states and 681 transitions. [2018-12-02 22:18:40,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 22:18:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 681 transitions. [2018-12-02 22:18:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-12-02 22:18:40,991 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:40,991 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, 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] [2018-12-02 22:18:40,991 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:40,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:40,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1221485474, now seen corresponding path program 1 times [2018-12-02 22:18:40,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:40,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:40,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:40,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:40,992 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-12-02 22:18:41,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:18:41,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 22:18:41,063 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:41,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 22:18:41,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 22:18:41,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 22:18:41,064 INFO L87 Difference]: Start difference. First operand 578 states and 681 transitions. Second operand 9 states. [2018-12-02 22:18:41,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:41,389 INFO L93 Difference]: Finished difference Result 1390 states and 1698 transitions. [2018-12-02 22:18:41,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 22:18:41,390 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2018-12-02 22:18:41,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:41,392 INFO L225 Difference]: With dead ends: 1390 [2018-12-02 22:18:41,392 INFO L226 Difference]: Without dead ends: 948 [2018-12-02 22:18:41,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-02 22:18:41,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2018-12-02 22:18:41,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 945. [2018-12-02 22:18:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2018-12-02 22:18:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1118 transitions. [2018-12-02 22:18:41,425 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1118 transitions. Word has length 181 [2018-12-02 22:18:41,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:41,425 INFO L480 AbstractCegarLoop]: Abstraction has 945 states and 1118 transitions. [2018-12-02 22:18:41,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 22:18:41,425 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1118 transitions. [2018-12-02 22:18:41,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-12-02 22:18:41,427 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:41,427 INFO L402 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:18:41,427 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:41,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:41,427 INFO L82 PathProgramCache]: Analyzing trace with hash -529808378, now seen corresponding path program 1 times [2018-12-02 22:18:41,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:41,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:41,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:41,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:41,428 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:18:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-12-02 22:18:41,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:18:41,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 22:18:41,471 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:18:41,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:18:41,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:18:41,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:18:41,471 INFO L87 Difference]: Start difference. First operand 945 states and 1118 transitions. Second operand 6 states. [2018-12-02 22:18:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:18:41,570 INFO L93 Difference]: Finished difference Result 958 states and 1133 transitions. [2018-12-02 22:18:41,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 22:18:41,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-12-02 22:18:41,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:18:41,573 INFO L225 Difference]: With dead ends: 958 [2018-12-02 22:18:41,573 INFO L226 Difference]: Without dead ends: 955 [2018-12-02 22:18:41,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 22:18:41,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2018-12-02 22:18:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 945. [2018-12-02 22:18:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2018-12-02 22:18:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1116 transitions. [2018-12-02 22:18:41,606 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1116 transitions. Word has length 185 [2018-12-02 22:18:41,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:18:41,607 INFO L480 AbstractCegarLoop]: Abstraction has 945 states and 1116 transitions. [2018-12-02 22:18:41,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:18:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1116 transitions. [2018-12-02 22:18:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-12-02 22:18:41,609 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:18:41,609 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, 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] [2018-12-02 22:18:41,609 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:18:41,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:18:41,609 INFO L82 PathProgramCache]: Analyzing trace with hash 673321303, now seen corresponding path program 1 times [2018-12-02 22:18:41,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:18:41,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:41,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:18:41,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:18:41,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:18:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:18:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:18:41,716 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 22:18:41,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:18:41 BoogieIcfgContainer [2018-12-02 22:18:41,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:18:41,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:18:41,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:18:41,818 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:18:41,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:18:34" (3/4) ... [2018-12-02 22:18:41,820 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 22:18:41,915 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_550633a4-5bca-4c27-974a-81b3dd231231/bin-2019/utaipan/witness.graphml [2018-12-02 22:18:41,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:18:41,915 INFO L168 Benchmark]: Toolchain (without parser) took 8360.77 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 572.0 MB). Free memory was 952.4 MB in the beginning and 923.6 MB in the end (delta: 28.8 MB). Peak memory consumption was 600.8 MB. Max. memory is 11.5 GB. [2018-12-02 22:18:41,916 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:18:41,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-02 22:18:41,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:18:41,917 INFO L168 Benchmark]: Boogie Preprocessor took 30.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:18:41,917 INFO L168 Benchmark]: RCFGBuilder took 374.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2018-12-02 22:18:41,917 INFO L168 Benchmark]: TraceAbstraction took 7520.75 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 426.8 MB). Free memory was 1.1 GB in the beginning and 994.4 MB in the end (delta: 81.3 MB). Peak memory consumption was 508.1 MB. Max. memory is 11.5 GB. [2018-12-02 22:18:41,917 INFO L168 Benchmark]: Witness Printer took 97.08 ms. Allocated memory is still 1.6 GB. Free memory was 994.4 MB in the beginning and 923.6 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2018-12-02 22:18:41,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 374.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7520.75 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 426.8 MB). Free memory was 1.1 GB in the beginning and 994.4 MB in the end (delta: 81.3 MB). Peak memory consumption was 508.1 MB. Max. memory is 11.5 GB. * Witness Printer took 97.08 ms. Allocated memory is still 1.6 GB. Free memory was 994.4 MB in the beginning and 923.6 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 434]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L155] int pumpRunning = 0; [L156] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L440] int waterLevel = 1; [L441] int methaneLevelCritical = 0; [L703] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L407] int retValue_acc ; [L408] 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] [L412] 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] [L413] 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] [L414] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L414] 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] [L414] tmp = valid_product() [L416] 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] [L418] 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] [L419] 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] [L401] 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] [L83] int splverifierCounter ; [L84] int tmp ; [L85] int tmp___0 ; [L86] int tmp___1 ; [L87] int tmp___2 ; [L90] 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] [L92] 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] [L94] 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] [L100] tmp = __VERIFIER_nondet_int() [L102] 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] [L104] 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] [L458] COND TRUE waterLevel < 2 [L459] 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] [L104] 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] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] 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] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] 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] [L135] 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] [L163] 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] [L170] 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] [L172] 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] [L218] 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] [L221] 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] [L236] CALL processEnvironment__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] [L192] 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] [L195] 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] [L197] 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] [L315] int retValue_acc ; [L316] int tmp ; [L317] 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] [L321] 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] [L520] 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] [L523] COND FALSE !(waterLevel < 2) [L527] retValue_acc = 0 [L528] 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] [L321] 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] [L321] tmp = isHighWaterSensorDry() [L323] COND FALSE !(\read(tmp)) [L326] 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] [L328] retValue_acc = tmp___0 [L329] 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] [L197] 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] [L197] tmp = isHighWaterLevel() [L199] 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] [L201] 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] [L246] 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] [L201] 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] [L236] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L172] 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] [L178] 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] [L901] int tmp ; [L902] 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] [L906] 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] [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] 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] [L906] 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] [L906] tmp = getWaterLevel() [L908] 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] [L178] 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] [L135] 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] [L92] 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] [L94] 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] [L100] tmp = __VERIFIER_nondet_int() [L102] 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] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] 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] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] 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] [L135] 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] [L163] 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] [L165] 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] [L446] COND TRUE waterLevel > 0 [L447] 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] [L165] 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] [L170] 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] [L172] 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] [L218] 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] [L221] 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] [L223] 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] [L259] 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] [L263] 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] [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] 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] [L263] 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] [L263] retValue_acc = isMethaneLevelCritical() [L265] 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] [L223] 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] [L223] tmp = isMethaneAlarm() [L225] 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] [L231] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L192] 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] [L195] 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] [L210] 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] [L231] RET processEnvironment__wrappee__highWaterSensor() 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] [L172] 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] [L178] 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] [L901] int tmp ; [L902] 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] [L906] 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] [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] 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] [L906] 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] [L906] tmp = getWaterLevel() [L908] 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] [L178] 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] [L135] 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] [L92] 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] [L94] 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] [L100] tmp = __VERIFIER_nondet_int() [L102] 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] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] 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] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] 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] [L135] 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] [L163] 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] [L165] 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] [L446] COND TRUE waterLevel > 0 [L447] 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] [L165] 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] [L170] 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] [L172] 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] [L218] 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] [L221] 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] [L223] 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] [L259] 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] [L263] 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] [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] 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] [L263] 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] [L263] retValue_acc = isMethaneLevelCritical() [L265] 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] [L223] 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] [L223] tmp = isMethaneAlarm() [L225] 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] [L231] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L192] 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] [L195] 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] [L210] 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] [L231] RET processEnvironment__wrappee__highWaterSensor() 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] [L172] 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] [L178] 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] [L901] int tmp ; [L902] 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] [L906] 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] [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] 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] [L906] 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] [L906] tmp = getWaterLevel() [L908] 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] [L910] 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] [L270] int retValue_acc ; [L273] retValue_acc = pumpRunning [L274] 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] [L910] 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] [L910] tmp___0 = isPumpRunning() [L912] 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] [L914] 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] [L434] __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 27 procedures, 139 locations, 1 error locations. UNSAFE Result, 7.4s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1751 SDtfs, 1616 SDslu, 4942 SDs, 0 SdLazy, 2512 SolverSat, 634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 886 GetRequests, 754 SyntacticMatches, 17 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=945occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.9s AbstIntTime, 4 AbstIntIterations, 2 AbstIntStrong, 0.9980737488470732 AbsIntWeakeningRatio, 0.9291338582677166 AbsIntAvgWeakeningVarsNumRemoved, 43.71259842519685 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 184 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1605 NumberOfCodeBlocks, 1605 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1661 ConstructedInterpolants, 0 QuantifiedInterpolants, 306717 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1591 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 368/382 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...