./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product43_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_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product43_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/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 437b76c0cd9dd6f0417f690a0c81e41159d0829e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:51:48,677 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:51:48,678 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:51:48,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:51:48,684 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:51:48,685 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:51:48,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:51:48,686 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:51:48,687 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:51:48,687 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:51:48,688 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:51:48,688 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:51:48,688 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:51:48,689 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:51:48,690 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:51:48,690 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:51:48,690 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:51:48,691 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:51:48,692 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:51:48,693 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:51:48,693 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:51:48,694 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:51:48,695 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:51:48,695 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:51:48,695 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:51:48,696 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:51:48,696 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:51:48,697 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:51:48,697 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:51:48,698 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:51:48,698 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:51:48,698 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:51:48,698 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:51:48,698 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:51:48,699 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:51:48,699 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:51:48,699 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 15:51:48,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:51:48,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:51:48,707 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:51:48,707 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:51:48,707 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:51:48,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:51:48,707 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:51:48,707 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:51:48,708 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:51:48,708 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:51:48,708 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:51:48,708 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:51:48,708 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:51:48,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:51:48,709 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:51:48,710 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:51:48,710 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:51:48,710 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:51:48,710 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:51:48,710 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:51:48,710 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:51:48,710 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:51:48,710 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:51:48,711 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:51:48,711 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:51:48,711 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:51:48,711 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:51:48,711 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 15:51:48,711 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_22c2dc09-07fb-4bf8-89bc-922203a845f8/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 -> 437b76c0cd9dd6f0417f690a0c81e41159d0829e [2018-12-09 15:51:48,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:51:48,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:51:48,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:51:48,738 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:51:48,738 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:51:48,739 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product43_false-unreach-call_false-termination.cil.c [2018-12-09 15:51:48,771 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/data/2642a6f16/e7a02228820647d8ab5c50eb7bf66836/FLAGba40e42c6 [2018-12-09 15:51:49,225 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:51:49,226 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/sv-benchmarks/c/product-lines/minepump_spec4_product43_false-unreach-call_false-termination.cil.c [2018-12-09 15:51:49,232 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/data/2642a6f16/e7a02228820647d8ab5c50eb7bf66836/FLAGba40e42c6 [2018-12-09 15:51:49,240 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/data/2642a6f16/e7a02228820647d8ab5c50eb7bf66836 [2018-12-09 15:51:49,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:51:49,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:51:49,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:51:49,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:51:49,246 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:51:49,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49, skipping insertion in model container [2018-12-09 15:51:49,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:51:49,277 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:51:49,435 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:51:49,485 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:51:49,527 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:51:49,542 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:51:49,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49 WrapperNode [2018-12-09 15:51:49,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:51:49,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:51:49,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:51:49,543 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:51:49,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:51:49,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:51:49,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:51:49,564 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:51:49,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... [2018-12-09 15:51:49,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:51:49,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:51:49,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:51:49,586 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:51:49,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:51:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 15:51:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 15:51:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 15:51:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 15:51:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:51:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:51:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 15:51:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 15:51:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:51:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 15:51:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 15:51:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 15:51:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 15:51:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 15:51:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 15:51:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 15:51:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 15:51:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 15:51:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 15:51:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 15:51:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 15:51:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 15:51:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 15:51:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 15:51:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 15:51:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 15:51:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 15:51:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 15:51:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 15:51:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 15:51:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 15:51:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 15:51:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 15:51:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 15:51:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 15:51:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 15:51:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:51:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:51:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 15:51:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 15:51:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 15:51:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 15:51:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:51:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:51:49,893 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:51:49,893 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 15:51:49,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:51:49 BoogieIcfgContainer [2018-12-09 15:51:49,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:51:49,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:51:49,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:51:49,896 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:51:49,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:51:49" (1/3) ... [2018-12-09 15:51:49,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3197ecda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:51:49, skipping insertion in model container [2018-12-09 15:51:49,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:51:49" (2/3) ... [2018-12-09 15:51:49,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3197ecda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:51:49, skipping insertion in model container [2018-12-09 15:51:49,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:51:49" (3/3) ... [2018-12-09 15:51:49,899 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43_false-unreach-call_false-termination.cil.c [2018-12-09 15:51:49,905 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:51:49,910 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:51:49,919 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:51:49,938 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:51:49,938 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:51:49,938 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:51:49,939 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:51:49,939 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:51:49,939 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:51:49,939 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:51:49,939 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:51:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2018-12-09 15:51:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 15:51:49,955 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:49,956 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] [2018-12-09 15:51:49,957 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:49,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:49,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1844140279, now seen corresponding path program 1 times [2018-12-09 15:51:49,962 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:49,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:49,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:49,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:49,991 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:51:50,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:51:50,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:51:50,099 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:51:50,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 15:51:50,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 15:51:50,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:51:50,111 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 2 states. [2018-12-09 15:51:50,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:50,134 INFO L93 Difference]: Finished difference Result 258 states and 315 transitions. [2018-12-09 15:51:50,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 15:51:50,135 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 15:51:50,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:50,142 INFO L225 Difference]: With dead ends: 258 [2018-12-09 15:51:50,142 INFO L226 Difference]: Without dead ends: 129 [2018-12-09 15:51:50,145 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:51:50,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-12-09 15:51:50,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-12-09 15:51:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-12-09 15:51:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2018-12-09 15:51:50,175 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 46 [2018-12-09 15:51:50,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:50,175 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2018-12-09 15:51:50,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 15:51:50,176 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2018-12-09 15:51:50,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 15:51:50,177 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:50,177 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] [2018-12-09 15:51:50,177 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:50,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:50,178 INFO L82 PathProgramCache]: Analyzing trace with hash 783950618, now seen corresponding path program 1 times [2018-12-09 15:51:50,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:50,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:50,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,179 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:51:50,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:51:50,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 15:51:50,229 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:51:50,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 15:51:50,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 15:51:50,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 15:51:50,230 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 3 states. [2018-12-09 15:51:50,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:50,244 INFO L93 Difference]: Finished difference Result 198 states and 227 transitions. [2018-12-09 15:51:50,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 15:51:50,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 15:51:50,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:50,245 INFO L225 Difference]: With dead ends: 198 [2018-12-09 15:51:50,245 INFO L226 Difference]: Without dead ends: 120 [2018-12-09 15:51:50,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 15:51:50,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-12-09 15:51:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-12-09 15:51:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-12-09 15:51:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 137 transitions. [2018-12-09 15:51:50,253 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 137 transitions. Word has length 47 [2018-12-09 15:51:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:50,253 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 137 transitions. [2018-12-09 15:51:50,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 15:51:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 137 transitions. [2018-12-09 15:51:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 15:51:50,254 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:50,254 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:51:50,254 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:50,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:50,254 INFO L82 PathProgramCache]: Analyzing trace with hash 2103672446, now seen corresponding path program 1 times [2018-12-09 15:51:50,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:50,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:50,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:51:50,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:51:50,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:51:50,318 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:51:50,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:51:50,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:51:50,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:51:50,319 INFO L87 Difference]: Start difference. First operand 120 states and 137 transitions. Second operand 7 states. [2018-12-09 15:51:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:50,497 INFO L93 Difference]: Finished difference Result 362 states and 429 transitions. [2018-12-09 15:51:50,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:51:50,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 15:51:50,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:50,500 INFO L225 Difference]: With dead ends: 362 [2018-12-09 15:51:50,500 INFO L226 Difference]: Without dead ends: 266 [2018-12-09 15:51:50,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:51:50,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-12-09 15:51:50,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 246. [2018-12-09 15:51:50,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-12-09 15:51:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 290 transitions. [2018-12-09 15:51:50,518 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 290 transitions. Word has length 51 [2018-12-09 15:51:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:50,518 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 290 transitions. [2018-12-09 15:51:50,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:51:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 290 transitions. [2018-12-09 15:51:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 15:51:50,519 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:50,519 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:51:50,519 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:50,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:50,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1568868392, now seen corresponding path program 1 times [2018-12-09 15:51:50,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:50,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:50,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,521 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:51:50,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:51:50,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 15:51:50,591 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:51:50,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 15:51:50,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 15:51:50,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:51:50,592 INFO L87 Difference]: Start difference. First operand 246 states and 290 transitions. Second operand 10 states. [2018-12-09 15:51:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:50,908 INFO L93 Difference]: Finished difference Result 864 states and 1100 transitions. [2018-12-09 15:51:50,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 15:51:50,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-09 15:51:50,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:50,912 INFO L225 Difference]: With dead ends: 864 [2018-12-09 15:51:50,913 INFO L226 Difference]: Without dead ends: 642 [2018-12-09 15:51:50,914 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 [2018-12-09 15:51:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2018-12-09 15:51:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 630. [2018-12-09 15:51:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2018-12-09 15:51:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 770 transitions. [2018-12-09 15:51:50,954 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 770 transitions. Word has length 57 [2018-12-09 15:51:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:50,955 INFO L480 AbstractCegarLoop]: Abstraction has 630 states and 770 transitions. [2018-12-09 15:51:50,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 15:51:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 770 transitions. [2018-12-09 15:51:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 15:51:50,957 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:50,957 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] [2018-12-09 15:51:50,957 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:50,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:50,957 INFO L82 PathProgramCache]: Analyzing trace with hash 550311694, now seen corresponding path program 1 times [2018-12-09 15:51:50,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:50,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:50,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:50,958 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:51:51,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:51:51,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:51:51,003 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:51:51,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:51:51,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:51:51,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:51:51,004 INFO L87 Difference]: Start difference. First operand 630 states and 770 transitions. Second operand 4 states. [2018-12-09 15:51:51,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:51,213 INFO L93 Difference]: Finished difference Result 1608 states and 2128 transitions. [2018-12-09 15:51:51,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 15:51:51,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-09 15:51:51,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:51,218 INFO L225 Difference]: With dead ends: 1608 [2018-12-09 15:51:51,218 INFO L226 Difference]: Without dead ends: 1002 [2018-12-09 15:51:51,220 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 15:51:51,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2018-12-09 15:51:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 891. [2018-12-09 15:51:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2018-12-09 15:51:51,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1102 transitions. [2018-12-09 15:51:51,258 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1102 transitions. Word has length 61 [2018-12-09 15:51:51,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:51,259 INFO L480 AbstractCegarLoop]: Abstraction has 891 states and 1102 transitions. [2018-12-09 15:51:51,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:51:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1102 transitions. [2018-12-09 15:51:51,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 15:51:51,260 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:51,260 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] [2018-12-09 15:51:51,260 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:51,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:51,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1350117125, now seen corresponding path program 1 times [2018-12-09 15:51:51,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:51,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:51,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:51,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:51,261 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:51,313 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 15:51:51,314 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:51:51,314 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:51:51,314 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-12-09 15:51:51,316 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [83], [92], [96], [100], [103], [108], [114], [116], [119], [121], [124], [137], [138], [150], [151], [203], [210], [213], [221], [227], [231], [232], [235], [236], [237], [238], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [253], [265], [266], [269], [270], [271], [272], [289], [290], [291], [292], [293] [2018-12-09 15:51:51,346 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:51:51,346 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:51:51,756 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:51:51,757 INFO L272 AbstractInterpreter]: Visited 67 different actions 137 times. Merged at 13 different actions 19 times. Never widened. Performed 5095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 15:51:51,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:51,762 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:51:51,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:51:51,762 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:51:51,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:51,769 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:51:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:51,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:51:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 15:51:51,921 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:51:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 15:51:52,064 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:51:52,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-09 15:51:52,064 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:51:52,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 15:51:52,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 15:51:52,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:51:52,066 INFO L87 Difference]: Start difference. First operand 891 states and 1102 transitions. Second operand 12 states. [2018-12-09 15:51:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:53,648 INFO L93 Difference]: Finished difference Result 2118 states and 2829 transitions. [2018-12-09 15:51:53,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-12-09 15:51:53,648 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2018-12-09 15:51:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:53,655 INFO L225 Difference]: With dead ends: 2118 [2018-12-09 15:51:53,655 INFO L226 Difference]: Without dead ends: 1507 [2018-12-09 15:51:53,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=629, Invalid=2451, Unknown=0, NotChecked=0, Total=3080 [2018-12-09 15:51:53,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2018-12-09 15:51:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1337. [2018-12-09 15:51:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2018-12-09 15:51:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1677 transitions. [2018-12-09 15:51:53,720 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1677 transitions. Word has length 88 [2018-12-09 15:51:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:53,720 INFO L480 AbstractCegarLoop]: Abstraction has 1337 states and 1677 transitions. [2018-12-09 15:51:53,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 15:51:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1677 transitions. [2018-12-09 15:51:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-12-09 15:51:53,722 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:53,722 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] [2018-12-09 15:51:53,722 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:53,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:53,723 INFO L82 PathProgramCache]: Analyzing trace with hash -82711573, now seen corresponding path program 1 times [2018-12-09 15:51:53,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:53,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:53,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:53,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:53,723 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 15:51:53,777 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:51:53,777 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:51:53,777 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 125 with the following transitions: [2018-12-09 15:51:53,777 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [114], [116], [119], [135], [136], [137], [138], [139], [141], [146], [149], [150], [151], [152], [154], [157], [161], [162], [170], [171], [200], [203], [207], [213], [216], [220], [221], [232], [235], [236], [237], [238], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [253], [255], [256], [257], [258], [259], [260], [263], [264], [271], [272], [275], [276], [277], [278], [279], [280], [285], [286], [287], [288], [289], [290], [291], [292], [293] [2018-12-09 15:51:53,779 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:51:53,779 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:51:53,863 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 15:51:53,863 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 1821 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1821 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 15:51:53,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:53,864 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 15:51:54,016 INFO L227 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 96.62% of their original sizes. [2018-12-09 15:51:54,016 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 15:51:54,098 INFO L418 sIntCurrentIteration]: We unified 123 AI predicates to 123 [2018-12-09 15:51:54,098 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 15:51:54,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 15:51:54,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-12-09 15:51:54,099 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:51:54,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 15:51:54,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 15:51:54,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:51:54,100 INFO L87 Difference]: Start difference. First operand 1337 states and 1677 transitions. Second operand 15 states. [2018-12-09 15:51:56,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:56,080 INFO L93 Difference]: Finished difference Result 2881 states and 3613 transitions. [2018-12-09 15:51:56,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 15:51:56,080 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 124 [2018-12-09 15:51:56,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:56,084 INFO L225 Difference]: With dead ends: 2881 [2018-12-09 15:51:56,084 INFO L226 Difference]: Without dead ends: 1568 [2018-12-09 15:51:56,086 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 130 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2018-12-09 15:51:56,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2018-12-09 15:51:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1550. [2018-12-09 15:51:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1550 states. [2018-12-09 15:51:56,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 1925 transitions. [2018-12-09 15:51:56,131 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 1925 transitions. Word has length 124 [2018-12-09 15:51:56,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:56,132 INFO L480 AbstractCegarLoop]: Abstraction has 1550 states and 1925 transitions. [2018-12-09 15:51:56,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 15:51:56,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 1925 transitions. [2018-12-09 15:51:56,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 15:51:56,133 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:56,134 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] [2018-12-09 15:51:56,134 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:56,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:56,134 INFO L82 PathProgramCache]: Analyzing trace with hash 953063172, now seen corresponding path program 1 times [2018-12-09 15:51:56,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:56,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:56,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:56,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:56,135 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 15:51:56,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:51:56,170 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:51:56,170 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 15:51:56,170 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [119], [135], [136], [137], [138], [139], [141], [146], [149], [150], [151], [152], [154], [157], [161], [162], [170], [171], [200], [203], [207], [213], [216], [220], [221], [227], [231], [232], [235], [236], [237], [238], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [253], [255], [256], [257], [258], [259], [260], [263], [264], [265], [266], [271], [272], [275], [276], [277], [278], [279], [280], [285], [286], [287], [288], [289], [290], [291], [292], [293] [2018-12-09 15:51:56,172 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:51:56,172 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:51:56,300 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 15:51:56,300 INFO L272 AbstractInterpreter]: Visited 54 different actions 71 times. Merged at 5 different actions 5 times. Never widened. Performed 3982 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3982 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 15:51:56,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:56,302 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 15:51:56,463 INFO L227 lantSequenceWeakener]: Weakened 63 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-09 15:51:56,463 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 15:51:56,536 INFO L418 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-12-09 15:51:56,536 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 15:51:56,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 15:51:56,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-09 15:51:56,536 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:51:56,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 15:51:56,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 15:51:56,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:51:56,537 INFO L87 Difference]: Start difference. First operand 1550 states and 1925 transitions. Second operand 15 states. [2018-12-09 15:51:59,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:51:59,340 INFO L93 Difference]: Finished difference Result 2959 states and 3722 transitions. [2018-12-09 15:51:59,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 15:51:59,340 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 128 [2018-12-09 15:51:59,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:51:59,346 INFO L225 Difference]: With dead ends: 2959 [2018-12-09 15:51:59,346 INFO L226 Difference]: Without dead ends: 1908 [2018-12-09 15:51:59,348 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 131 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-09 15:51:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2018-12-09 15:51:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1856. [2018-12-09 15:51:59,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1856 states. [2018-12-09 15:51:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2282 transitions. [2018-12-09 15:51:59,425 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2282 transitions. Word has length 128 [2018-12-09 15:51:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:51:59,425 INFO L480 AbstractCegarLoop]: Abstraction has 1856 states and 2282 transitions. [2018-12-09 15:51:59,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 15:51:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2282 transitions. [2018-12-09 15:51:59,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 15:51:59,427 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:51:59,427 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] [2018-12-09 15:51:59,428 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:51:59,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:51:59,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1792096834, now seen corresponding path program 1 times [2018-12-09 15:51:59,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:51:59,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:59,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:51:59,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:51:59,429 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:51:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:51:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 15:51:59,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:51:59,500 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:51:59,500 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 15:51:59,500 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [119], [135], [136], [137], [138], [139], [141], [146], [149], [150], [151], [152], [154], [159], [161], [162], [170], [171], [200], [203], [207], [213], [216], [220], [221], [227], [231], [232], [235], [236], [237], [238], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [253], [255], [256], [257], [258], [259], [260], [263], [264], [265], [266], [271], [272], [275], [276], [277], [278], [279], [280], [285], [286], [287], [288], [289], [290], [291], [292], [293] [2018-12-09 15:51:59,502 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:51:59,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:51:59,998 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:51:59,999 INFO L272 AbstractInterpreter]: Visited 108 different actions 479 times. Merged at 15 different actions 42 times. Never widened. Performed 15794 root evaluator evaluations with a maximum evaluation depth of 3. Performed 15794 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-09 15:52:00,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:00,000 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:52:00,000 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:52:00,000 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:52:00,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:00,007 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:52:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:00,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:52:00,118 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:52:00,118 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:52:00,288 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 15:52:00,304 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:52:00,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 15:52:00,304 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:52:00,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 15:52:00,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 15:52:00,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 15:52:00,305 INFO L87 Difference]: Start difference. First operand 1856 states and 2282 transitions. Second operand 15 states. [2018-12-09 15:52:01,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:01,069 INFO L93 Difference]: Finished difference Result 3166 states and 4205 transitions. [2018-12-09 15:52:01,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 15:52:01,070 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 128 [2018-12-09 15:52:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:01,078 INFO L225 Difference]: With dead ends: 3166 [2018-12-09 15:52:01,078 INFO L226 Difference]: Without dead ends: 2115 [2018-12-09 15:52:01,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 248 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 15:52:01,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2018-12-09 15:52:01,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1748. [2018-12-09 15:52:01,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1748 states. [2018-12-09 15:52:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2142 transitions. [2018-12-09 15:52:01,153 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2142 transitions. Word has length 128 [2018-12-09 15:52:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:01,153 INFO L480 AbstractCegarLoop]: Abstraction has 1748 states and 2142 transitions. [2018-12-09 15:52:01,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 15:52:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2142 transitions. [2018-12-09 15:52:01,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 15:52:01,155 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:01,156 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] [2018-12-09 15:52:01,156 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:01,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:01,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1116254439, now seen corresponding path program 1 times [2018-12-09 15:52:01,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:01,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:01,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:01,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:01,157 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 15:52:01,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:52:01,193 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:52:01,193 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 15:52:01,193 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [111], [114], [116], [119], [135], [136], [137], [138], [139], [141], [146], [149], [150], [151], [152], [154], [157], [161], [162], [167], [169], [170], [171], [200], [203], [207], [213], [216], [220], [221], [232], [235], [236], [237], [238], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [253], [255], [256], [257], [258], [259], [260], [263], [264], [267], [268], [271], [272], [275], [276], [277], [278], [279], [280], [285], [286], [287], [288], [289], [290], [291], [292], [293] [2018-12-09 15:52:01,194 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:52:01,194 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:52:01,315 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 15:52:01,315 INFO L272 AbstractInterpreter]: Visited 59 different actions 83 times. Merged at 3 different actions 3 times. Never widened. Performed 4021 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4021 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 15:52:01,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:01,317 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 15:52:01,430 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-09 15:52:01,430 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 15:52:01,507 INFO L418 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-12-09 15:52:01,507 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 15:52:01,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 15:52:01,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-12-09 15:52:01,508 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:01,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 15:52:01,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 15:52:01,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-12-09 15:52:01,509 INFO L87 Difference]: Start difference. First operand 1748 states and 2142 transitions. Second operand 18 states. [2018-12-09 15:52:02,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:02,983 INFO L93 Difference]: Finished difference Result 3357 states and 4129 transitions. [2018-12-09 15:52:02,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-09 15:52:02,983 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 128 [2018-12-09 15:52:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:02,988 INFO L225 Difference]: With dead ends: 3357 [2018-12-09 15:52:02,988 INFO L226 Difference]: Without dead ends: 1633 [2018-12-09 15:52:02,992 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=199, Invalid=857, Unknown=0, NotChecked=0, Total=1056 [2018-12-09 15:52:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2018-12-09 15:52:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1625. [2018-12-09 15:52:03,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1625 states. [2018-12-09 15:52:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 1991 transitions. [2018-12-09 15:52:03,049 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 1991 transitions. Word has length 128 [2018-12-09 15:52:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:03,050 INFO L480 AbstractCegarLoop]: Abstraction has 1625 states and 1991 transitions. [2018-12-09 15:52:03,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 15:52:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 1991 transitions. [2018-12-09 15:52:03,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-09 15:52:03,051 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:03,051 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] [2018-12-09 15:52:03,052 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:03,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:03,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1244262785, now seen corresponding path program 1 times [2018-12-09 15:52:03,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:03,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:03,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:03,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:03,052 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 15:52:03,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:03,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:52:03,084 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:03,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:52:03,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:52:03,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:52:03,085 INFO L87 Difference]: Start difference. First operand 1625 states and 1991 transitions. Second operand 4 states. [2018-12-09 15:52:03,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:03,176 INFO L93 Difference]: Finished difference Result 1861 states and 2286 transitions. [2018-12-09 15:52:03,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 15:52:03,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-12-09 15:52:03,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:03,178 INFO L225 Difference]: With dead ends: 1861 [2018-12-09 15:52:03,179 INFO L226 Difference]: Without dead ends: 711 [2018-12-09 15:52:03,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:52:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2018-12-09 15:52:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2018-12-09 15:52:03,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2018-12-09 15:52:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 848 transitions. [2018-12-09 15:52:03,219 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 848 transitions. Word has length 130 [2018-12-09 15:52:03,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:03,219 INFO L480 AbstractCegarLoop]: Abstraction has 711 states and 848 transitions. [2018-12-09 15:52:03,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:52:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 848 transitions. [2018-12-09 15:52:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-12-09 15:52:03,222 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:03,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:52:03,222 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:03,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:03,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1366085544, now seen corresponding path program 1 times [2018-12-09 15:52:03,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:03,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:03,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:03,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:03,223 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:52:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:52:03,389 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 15:52:03,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:52:03 BoogieIcfgContainer [2018-12-09 15:52:03,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:52:03,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:52:03,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:52:03,475 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:52:03,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:51:49" (3/4) ... [2018-12-09 15:52:03,476 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 15:52:03,562 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_22c2dc09-07fb-4bf8-89bc-922203a845f8/bin-2019/utaipan/witness.graphml [2018-12-09 15:52:03,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:52:03,563 INFO L168 Benchmark]: Toolchain (without parser) took 14320.38 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 717.2 MB). Free memory was 947.0 MB in the beginning and 1.5 GB in the end (delta: -587.0 MB). Peak memory consumption was 130.2 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:03,564 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:52:03,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:03,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:52:03,564 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:52:03,564 INFO L168 Benchmark]: RCFGBuilder took 307.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:03,564 INFO L168 Benchmark]: TraceAbstraction took 13580.44 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 620.2 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -560.2 MB). Peak memory consumption was 815.0 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:03,564 INFO L168 Benchmark]: Witness Printer took 87.94 ms. Allocated memory is still 1.7 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:03,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 307.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13580.44 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 620.2 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -560.2 MB). Peak memory consumption was 815.0 MB. Max. memory is 11.5 GB. * Witness Printer took 87.94 ms. Allocated memory is still 1.7 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 310]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L713] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L391] int retValue_acc ; [L392] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L396] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L397] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L538] retValue_acc = 1 [L539] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L398] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L402] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L403] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L67] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L272] int retValue_acc ; [L273] int tmp ; [L274] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L495] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L278] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] tmp = isHighWaterSensorDry() [L280] COND FALSE !(\read(tmp)) [L283] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L285] retValue_acc = tmp___0 [L286] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L162] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] tmp = isHighWaterLevel() [L164] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L166] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L216] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L220] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L220] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L220] retValue_acc = isMethaneLevelCritical() [L222] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L195] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L201] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L201] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L166] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L137] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L143] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L911] int tmp ; [L912] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L916] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L916] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L143] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L100] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L77] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L445] COND FALSE !(\read(methaneLevelCritical)) [L448] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L77] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L128] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L130] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L130] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L135] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L137] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L157] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L160] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L175] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L137] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L143] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L911] int tmp ; [L912] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L916] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L916] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L143] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L100] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L128] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L130] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L130] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L135] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L137] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L157] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L160] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L175] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L137] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L143] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L911] int tmp ; [L912] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L916] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L916] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L916] tmp = getWaterLevel() [L918] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L920] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L920] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L920] tmp___0 = isPumpRunning() [L922] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L924] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L310] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 142 locations, 1 error locations. UNSAFE Result, 13.5s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 9.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1969 SDtfs, 3215 SDslu, 6254 SDs, 0 SdLazy, 5671 SolverSat, 1464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 984 GetRequests, 787 SyntacticMatches, 15 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1856occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9979437154996879 AbsIntWeakeningRatio, 0.9310344827586207 AbsIntAvgWeakeningVarsNumRemoved, 40.54641909814324 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 758 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1371 NumberOfCodeBlocks, 1371 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1405 ConstructedInterpolants, 0 QuantifiedInterpolants, 241850 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1533 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 207/237 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...