./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46_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_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/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 209a5f451d4da606f6f89775a0cb8490169e98a1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 09:33:22,481 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 09:33:22,482 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 09:33:22,490 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 09:33:22,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 09:33:22,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 09:33:22,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 09:33:22,493 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 09:33:22,494 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 09:33:22,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 09:33:22,496 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 09:33:22,496 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 09:33:22,496 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 09:33:22,497 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 09:33:22,498 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 09:33:22,498 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 09:33:22,499 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 09:33:22,500 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 09:33:22,502 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 09:33:22,503 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 09:33:22,503 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 09:33:22,504 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 09:33:22,506 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 09:33:22,506 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 09:33:22,506 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 09:33:22,507 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 09:33:22,508 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 09:33:22,508 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 09:33:22,509 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 09:33:22,510 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 09:33:22,510 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 09:33:22,510 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 09:33:22,511 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 09:33:22,511 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 09:33:22,511 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 09:33:22,512 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 09:33:22,512 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 09:33:22,522 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 09:33:22,522 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 09:33:22,523 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 09:33:22,523 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 09:33:22,523 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 09:33:22,523 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 09:33:22,523 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 09:33:22,523 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 09:33:22,523 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 09:33:22,524 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 09:33:22,524 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 09:33:22,524 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 09:33:22,524 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 09:33:22,524 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 09:33:22,524 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 09:33:22,525 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 09:33:22,525 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 09:33:22,525 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 09:33:22,525 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 09:33:22,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 09:33:22,525 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 09:33:22,525 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 09:33:22,526 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 09:33:22,526 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 09:33:22,526 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 09:33:22,526 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 09:33:22,526 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 09:33:22,526 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 09:33:22,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 09:33:22,527 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 09:33:22,527 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 09:33:22,527 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 09:33:22,527 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 09:33:22,527 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 09:33:22,527 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 09:33:22,527 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 09:33:22,527 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_35185230-f4c2-4e6d-8975-66924ffa9ced/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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2018-12-09 09:33:22,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 09:33:22,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 09:33:22,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 09:33:22,562 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 09:33:22,562 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 09:33:22,563 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-12-09 09:33:22,600 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/data/3c37801fe/a73b97c725e1494486b3c36029068bd9/FLAGd95bd2922 [2018-12-09 09:33:23,034 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 09:33:23,035 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-12-09 09:33:23,040 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/data/3c37801fe/a73b97c725e1494486b3c36029068bd9/FLAGd95bd2922 [2018-12-09 09:33:23,048 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/data/3c37801fe/a73b97c725e1494486b3c36029068bd9 [2018-12-09 09:33:23,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 09:33:23,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 09:33:23,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 09:33:23,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 09:33:23,053 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 09:33:23,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23, skipping insertion in model container [2018-12-09 09:33:23,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 09:33:23,079 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 09:33:23,263 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:33:23,306 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 09:33:23,355 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:33:23,376 INFO L195 MainTranslator]: Completed translation [2018-12-09 09:33:23,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23 WrapperNode [2018-12-09 09:33:23,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 09:33:23,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 09:33:23,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 09:33:23,377 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 09:33:23,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 09:33:23,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 09:33:23,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 09:33:23,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 09:33:23,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... [2018-12-09 09:33:23,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 09:33:23,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 09:33:23,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 09:33:23,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 09:33:23,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 09:33:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 09:33:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 09:33:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 09:33:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 09:33:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 09:33:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 09:33:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 09:33:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 09:33:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 09:33:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 09:33:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 09:33:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 09:33:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 09:33:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 09:33:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 09:33:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 09:33:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 09:33:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 09:33:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 09:33:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 09:33:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 09:33:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 09:33:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 09:33:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 09:33:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 09:33:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 09:33:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 09:33:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 09:33:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 09:33:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 09:33:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 09:33:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 09:33:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 09:33:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 09:33:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 09:33:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 09:33:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 09:33:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 09:33:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 09:33:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 09:33:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 09:33:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 09:33:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 09:33:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 09:33:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 09:33:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 09:33:23,741 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 09:33:23,741 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 09:33:23,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:33:23 BoogieIcfgContainer [2018-12-09 09:33:23,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 09:33:23,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 09:33:23,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 09:33:23,744 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 09:33:23,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:33:23" (1/3) ... [2018-12-09 09:33:23,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c10950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:33:23, skipping insertion in model container [2018-12-09 09:33:23,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:33:23" (2/3) ... [2018-12-09 09:33:23,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c10950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:33:23, skipping insertion in model container [2018-12-09 09:33:23,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:33:23" (3/3) ... [2018-12-09 09:33:23,746 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-12-09 09:33:23,752 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 09:33:23,757 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 09:33:23,767 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 09:33:23,785 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 09:33:23,785 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 09:33:23,785 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 09:33:23,785 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 09:33:23,785 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 09:33:23,785 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 09:33:23,786 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 09:33:23,786 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 09:33:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2018-12-09 09:33:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 09:33:23,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:23,803 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 09:33:23,805 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:23,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:23,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1229412356, now seen corresponding path program 1 times [2018-12-09 09:33:23,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:23,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:23,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:23,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:23,839 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:33:23,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:33:23,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 09:33:23,945 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:23,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 09:33:23,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 09:33:23,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 09:33:23,957 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2018-12-09 09:33:23,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:23,980 INFO L93 Difference]: Finished difference Result 274 states and 337 transitions. [2018-12-09 09:33:23,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 09:33:23,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 09:33:23,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:23,988 INFO L225 Difference]: With dead ends: 274 [2018-12-09 09:33:23,988 INFO L226 Difference]: Without dead ends: 137 [2018-12-09 09:33:23,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 09:33:24,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-12-09 09:33:24,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-12-09 09:33:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-12-09 09:33:24,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2018-12-09 09:33:24,021 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 46 [2018-12-09 09:33:24,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:24,021 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2018-12-09 09:33:24,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 09:33:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2018-12-09 09:33:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 09:33:24,023 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:24,023 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 09:33:24,023 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:24,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:24,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1836920354, now seen corresponding path program 1 times [2018-12-09 09:33:24,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:24,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:24,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,025 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:33:24,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:33:24,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 09:33:24,080 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:24,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 09:33:24,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 09:33:24,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 09:33:24,081 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2018-12-09 09:33:24,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:24,093 INFO L93 Difference]: Finished difference Result 219 states and 255 transitions. [2018-12-09 09:33:24,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 09:33:24,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 09:33:24,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:24,095 INFO L225 Difference]: With dead ends: 219 [2018-12-09 09:33:24,095 INFO L226 Difference]: Without dead ends: 128 [2018-12-09 09:33:24,095 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 09:33:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-12-09 09:33:24,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-12-09 09:33:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-12-09 09:33:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2018-12-09 09:33:24,103 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 47 [2018-12-09 09:33:24,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:24,103 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2018-12-09 09:33:24,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 09:33:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2018-12-09 09:33:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 09:33:24,104 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:24,104 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:24,104 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:24,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:24,104 INFO L82 PathProgramCache]: Analyzing trace with hash -589628054, now seen corresponding path program 1 times [2018-12-09 09:33:24,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:24,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:24,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,105 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:33:24,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:33:24,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 09:33:24,188 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:24,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 09:33:24,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 09:33:24,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 09:33:24,189 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2018-12-09 09:33:24,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:24,364 INFO L93 Difference]: Finished difference Result 232 states and 273 transitions. [2018-12-09 09:33:24,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 09:33:24,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 09:33:24,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:24,366 INFO L225 Difference]: With dead ends: 232 [2018-12-09 09:33:24,366 INFO L226 Difference]: Without dead ends: 128 [2018-12-09 09:33:24,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 09:33:24,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-12-09 09:33:24,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-12-09 09:33:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-12-09 09:33:24,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2018-12-09 09:33:24,378 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 52 [2018-12-09 09:33:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:24,379 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2018-12-09 09:33:24,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 09:33:24,379 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2018-12-09 09:33:24,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-09 09:33:24,380 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:24,381 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:24,381 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:24,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:24,381 INFO L82 PathProgramCache]: Analyzing trace with hash -555014520, now seen corresponding path program 1 times [2018-12-09 09:33:24,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:24,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:24,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:33:24,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:33:24,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 09:33:24,463 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:24,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 09:33:24,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 09:33:24,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 09:33:24,464 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2018-12-09 09:33:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:24,731 INFO L93 Difference]: Finished difference Result 341 states and 406 transitions. [2018-12-09 09:33:24,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 09:33:24,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-09 09:33:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:24,733 INFO L225 Difference]: With dead ends: 341 [2018-12-09 09:33:24,733 INFO L226 Difference]: Without dead ends: 237 [2018-12-09 09:33:24,733 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 09:33:24,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-12-09 09:33:24,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 218. [2018-12-09 09:33:24,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-12-09 09:33:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 245 transitions. [2018-12-09 09:33:24,747 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 245 transitions. Word has length 65 [2018-12-09 09:33:24,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:24,748 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 245 transitions. [2018-12-09 09:33:24,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 09:33:24,748 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 245 transitions. [2018-12-09 09:33:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 09:33:24,749 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:24,749 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:24,749 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:24,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:24,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1756458939, now seen corresponding path program 1 times [2018-12-09 09:33:24,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:24,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:24,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:24,750 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:33:24,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:33:24,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 09:33:24,834 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:24,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 09:33:24,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 09:33:24,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 09:33:24,835 INFO L87 Difference]: Start difference. First operand 218 states and 245 transitions. Second operand 10 states. [2018-12-09 09:33:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:25,137 INFO L93 Difference]: Finished difference Result 712 states and 867 transitions. [2018-12-09 09:33:25,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 09:33:25,137 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-12-09 09:33:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:25,141 INFO L225 Difference]: With dead ends: 712 [2018-12-09 09:33:25,141 INFO L226 Difference]: Without dead ends: 518 [2018-12-09 09:33:25,143 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 09:33:25,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2018-12-09 09:33:25,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 508. [2018-12-09 09:33:25,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-12-09 09:33:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 589 transitions. [2018-12-09 09:33:25,176 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 589 transitions. Word has length 79 [2018-12-09 09:33:25,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:25,177 INFO L480 AbstractCegarLoop]: Abstraction has 508 states and 589 transitions. [2018-12-09 09:33:25,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 09:33:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 589 transitions. [2018-12-09 09:33:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-12-09 09:33:25,179 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:25,179 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:25,179 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:25,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1130287401, now seen corresponding path program 1 times [2018-12-09 09:33:25,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:25,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:25,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:25,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:25,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-09 09:33:25,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:25,247 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:33:25,248 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-12-09 09:33:25,250 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [116], [118], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [169], [170], [171], [172], [180], [181], [184], [187], [191], [197], [226], [230], [231], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-09 09:33:25,280 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:33:25,280 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:33:25,499 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:33:25,501 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Performed 1955 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1955 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:33:25,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:25,505 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:33:25,672 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-09 09:33:25,672 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:33:25,744 INFO L418 sIntCurrentIteration]: We unified 142 AI predicates to 142 [2018-12-09 09:33:25,744 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:33:25,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:33:25,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-09 09:33:25,744 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:25,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 09:33:25,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 09:33:25,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-12-09 09:33:25,745 INFO L87 Difference]: Start difference. First operand 508 states and 589 transitions. Second operand 13 states. [2018-12-09 09:33:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:26,896 INFO L93 Difference]: Finished difference Result 1051 states and 1230 transitions. [2018-12-09 09:33:26,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 09:33:26,896 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 143 [2018-12-09 09:33:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:26,899 INFO L225 Difference]: With dead ends: 1051 [2018-12-09 09:33:26,899 INFO L226 Difference]: Without dead ends: 567 [2018-12-09 09:33:26,901 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-12-09 09:33:26,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2018-12-09 09:33:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 565. [2018-12-09 09:33:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2018-12-09 09:33:26,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 651 transitions. [2018-12-09 09:33:26,929 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 651 transitions. Word has length 143 [2018-12-09 09:33:26,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:26,930 INFO L480 AbstractCegarLoop]: Abstraction has 565 states and 651 transitions. [2018-12-09 09:33:26,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 09:33:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 651 transitions. [2018-12-09 09:33:26,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-12-09 09:33:26,933 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:26,933 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:26,933 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:26,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:26,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1539597536, now seen corresponding path program 1 times [2018-12-09 09:33:26,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:26,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:26,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:26,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:26,935 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-09 09:33:26,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:26,995 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:33:26,995 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-12-09 09:33:26,995 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [48], [55], [56], [57], [58], [61], [63], [64], [67], [70], [72], [73], [88], [91], [92], [93], [102], [106], [110], [113], [118], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [169], [170], [171], [172], [180], [181], [187], [191], [197], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [271], [273], [274], [281], [282], [283], [284], [289], [290], [293], [294], [295], [296], [297], [298], [301], [302], [303], [304], [309], [310], [311] [2018-12-09 09:33:26,997 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:33:26,997 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:33:27,087 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:33:27,087 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Performed 2055 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2055 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:33:27,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:27,088 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:33:27,228 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 96.83% of their original sizes. [2018-12-09 09:33:27,239 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:33:27,279 INFO L418 sIntCurrentIteration]: We unified 153 AI predicates to 153 [2018-12-09 09:33:27,279 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:33:27,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:33:27,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-09 09:33:27,279 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:27,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 09:33:27,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 09:33:27,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-09 09:33:27,280 INFO L87 Difference]: Start difference. First operand 565 states and 651 transitions. Second operand 11 states. [2018-12-09 09:33:28,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:28,479 INFO L93 Difference]: Finished difference Result 1421 states and 1697 transitions. [2018-12-09 09:33:28,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 09:33:28,479 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2018-12-09 09:33:28,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:28,482 INFO L225 Difference]: With dead ends: 1421 [2018-12-09 09:33:28,482 INFO L226 Difference]: Without dead ends: 937 [2018-12-09 09:33:28,483 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-09 09:33:28,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2018-12-09 09:33:28,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 914. [2018-12-09 09:33:28,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2018-12-09 09:33:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1055 transitions. [2018-12-09 09:33:28,513 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1055 transitions. Word has length 154 [2018-12-09 09:33:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:28,514 INFO L480 AbstractCegarLoop]: Abstraction has 914 states and 1055 transitions. [2018-12-09 09:33:28,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 09:33:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1055 transitions. [2018-12-09 09:33:28,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 09:33:28,517 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:28,517 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:28,517 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:28,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:28,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1937304738, now seen corresponding path program 1 times [2018-12-09 09:33:28,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:28,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:28,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:28,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:28,519 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-09 09:33:28,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:28,578 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:33:28,578 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-09 09:33:28,579 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [71], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [116], [118], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [169], [170], [171], [172], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [283], [284], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-09 09:33:28,581 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:33:28,581 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:33:28,775 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:33:28,775 INFO L272 AbstractInterpreter]: Visited 63 different actions 84 times. Merged at 6 different actions 6 times. Never widened. Performed 4660 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4660 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:33:28,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:28,777 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:33:28,926 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 96.49% of their original sizes. [2018-12-09 09:33:28,926 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:33:28,987 INFO L418 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-12-09 09:33:28,987 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:33:28,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:33:28,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2018-12-09 09:33:28,987 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:28,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 09:33:28,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 09:33:28,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-12-09 09:33:28,988 INFO L87 Difference]: Start difference. First operand 914 states and 1055 transitions. Second operand 14 states. [2018-12-09 09:33:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:31,082 INFO L93 Difference]: Finished difference Result 2033 states and 2482 transitions. [2018-12-09 09:33:31,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 09:33:31,082 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 147 [2018-12-09 09:33:31,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:31,086 INFO L225 Difference]: With dead ends: 2033 [2018-12-09 09:33:31,086 INFO L226 Difference]: Without dead ends: 1469 [2018-12-09 09:33:31,087 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2018-12-09 09:33:31,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2018-12-09 09:33:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1393. [2018-12-09 09:33:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2018-12-09 09:33:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1624 transitions. [2018-12-09 09:33:31,131 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1624 transitions. Word has length 147 [2018-12-09 09:33:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:31,132 INFO L480 AbstractCegarLoop]: Abstraction has 1393 states and 1624 transitions. [2018-12-09 09:33:31,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 09:33:31,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1624 transitions. [2018-12-09 09:33:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 09:33:31,133 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:31,133 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:31,134 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:31,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:31,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1474153568, now seen corresponding path program 1 times [2018-12-09 09:33:31,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:31,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:31,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:31,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:31,134 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 09:33:31,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:33:31,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 09:33:31,219 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:31,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 09:33:31,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 09:33:31,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 09:33:31,220 INFO L87 Difference]: Start difference. First operand 1393 states and 1624 transitions. Second operand 9 states. [2018-12-09 09:33:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:31,590 INFO L93 Difference]: Finished difference Result 2960 states and 3487 transitions. [2018-12-09 09:33:31,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 09:33:31,590 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 147 [2018-12-09 09:33:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:31,597 INFO L225 Difference]: With dead ends: 2960 [2018-12-09 09:33:31,597 INFO L226 Difference]: Without dead ends: 1768 [2018-12-09 09:33:31,600 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-09 09:33:31,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-12-09 09:33:31,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1757. [2018-12-09 09:33:31,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1757 states. [2018-12-09 09:33:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2021 transitions. [2018-12-09 09:33:31,669 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2021 transitions. Word has length 147 [2018-12-09 09:33:31,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:31,669 INFO L480 AbstractCegarLoop]: Abstraction has 1757 states and 2021 transitions. [2018-12-09 09:33:31,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 09:33:31,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2021 transitions. [2018-12-09 09:33:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-09 09:33:31,673 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:31,673 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:31,673 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:31,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:31,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1492162914, now seen corresponding path program 1 times [2018-12-09 09:33:31,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:31,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:31,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:31,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:31,674 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-09 09:33:31,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:31,709 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:33:31,710 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-09 09:33:31,710 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [71], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [116], [118], [121], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [169], [170], [171], [172], [177], [179], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [283], [284], [285], [286], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-09 09:33:31,711 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:33:31,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:33:32,039 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:33:32,039 INFO L272 AbstractInterpreter]: Visited 68 different actions 150 times. Merged at 8 different actions 15 times. Never widened. Performed 10467 root evaluator evaluations with a maximum evaluation depth of 3. Performed 10467 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:33:32,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:32,041 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:33:32,171 INFO L227 lantSequenceWeakener]: Weakened 77 states. On average, predicates are now at 96.48% of their original sizes. [2018-12-09 09:33:32,171 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:33:32,249 INFO L418 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2018-12-09 09:33:32,249 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:33:32,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:33:32,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2018-12-09 09:33:32,249 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:32,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 09:33:32,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 09:33:32,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-12-09 09:33:32,250 INFO L87 Difference]: Start difference. First operand 1757 states and 2021 transitions. Second operand 16 states. [2018-12-09 09:33:35,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:35,842 INFO L93 Difference]: Finished difference Result 3683 states and 4337 transitions. [2018-12-09 09:33:35,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-09 09:33:35,842 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 151 [2018-12-09 09:33:35,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:35,847 INFO L225 Difference]: With dead ends: 3683 [2018-12-09 09:33:35,847 INFO L226 Difference]: Without dead ends: 2437 [2018-12-09 09:33:35,850 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 168 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122 [2018-12-09 09:33:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2018-12-09 09:33:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2357. [2018-12-09 09:33:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2357 states. [2018-12-09 09:33:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 2699 transitions. [2018-12-09 09:33:35,915 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 2699 transitions. Word has length 151 [2018-12-09 09:33:35,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:35,915 INFO L480 AbstractCegarLoop]: Abstraction has 2357 states and 2699 transitions. [2018-12-09 09:33:35,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 09:33:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 2699 transitions. [2018-12-09 09:33:35,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-12-09 09:33:35,918 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:35,918 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:35,918 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:35,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:35,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1966140318, now seen corresponding path program 1 times [2018-12-09 09:33:35,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:35,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:35,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:35,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:35,919 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-09 09:33:35,999 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:35,999 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:33:35,999 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-12-09 09:33:35,999 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [71], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [118], [121], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [167], [169], [170], [171], [172], [177], [179], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [283], [284], [285], [286], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-09 09:33:36,001 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:33:36,001 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:33:36,604 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 09:33:36,604 INFO L272 AbstractInterpreter]: Visited 123 different actions 516 times. Merged at 20 different actions 44 times. Never widened. Performed 21762 root evaluator evaluations with a maximum evaluation depth of 3. Performed 21762 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 09:33:36,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:36,606 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 09:33:36,606 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:36,606 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 09:33:36,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:36,613 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 09:33:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:36,697 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:33:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 09:33:36,803 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:33:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-09 09:33:37,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 09:33:37,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 09:33:37,427 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:37,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 09:33:37,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 09:33:37,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 09:33:37,428 INFO L87 Difference]: Start difference. First operand 2357 states and 2699 transitions. Second operand 8 states. [2018-12-09 09:33:37,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:37,608 INFO L93 Difference]: Finished difference Result 3446 states and 3973 transitions. [2018-12-09 09:33:37,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 09:33:37,609 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2018-12-09 09:33:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:37,613 INFO L225 Difference]: With dead ends: 3446 [2018-12-09 09:33:37,613 INFO L226 Difference]: Without dead ends: 2214 [2018-12-09 09:33:37,615 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 292 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 09:33:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2018-12-09 09:33:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2211. [2018-12-09 09:33:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2211 states. [2018-12-09 09:33:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2512 transitions. [2018-12-09 09:33:37,678 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2512 transitions. Word has length 155 [2018-12-09 09:33:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:37,678 INFO L480 AbstractCegarLoop]: Abstraction has 2211 states and 2512 transitions. [2018-12-09 09:33:37,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 09:33:37,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2512 transitions. [2018-12-09 09:33:37,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-09 09:33:37,679 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:37,679 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:37,680 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:37,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:37,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1851944996, now seen corresponding path program 1 times [2018-12-09 09:33:37,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:37,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:37,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:37,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:37,681 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 09:33:37,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:33:37,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 09:33:37,729 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:37,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 09:33:37,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 09:33:37,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 09:33:37,730 INFO L87 Difference]: Start difference. First operand 2211 states and 2512 transitions. Second operand 6 states. [2018-12-09 09:33:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:37,874 INFO L93 Difference]: Finished difference Result 2228 states and 2529 transitions. [2018-12-09 09:33:37,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 09:33:37,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-12-09 09:33:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:37,879 INFO L225 Difference]: With dead ends: 2228 [2018-12-09 09:33:37,880 INFO L226 Difference]: Without dead ends: 2225 [2018-12-09 09:33:37,880 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 09:33:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2018-12-09 09:33:37,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2211. [2018-12-09 09:33:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2211 states. [2018-12-09 09:33:37,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2509 transitions. [2018-12-09 09:33:37,940 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2509 transitions. Word has length 151 [2018-12-09 09:33:37,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:37,941 INFO L480 AbstractCegarLoop]: Abstraction has 2211 states and 2509 transitions. [2018-12-09 09:33:37,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 09:33:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2509 transitions. [2018-12-09 09:33:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-09 09:33:37,942 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:37,942 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:37,942 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:37,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:37,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1000939267, now seen corresponding path program 1 times [2018-12-09 09:33:37,943 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:37,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:37,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:37,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:37,943 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 09:33:38,024 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:38,024 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:33:38,025 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-09 09:33:38,025 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [56], [57], [58], [61], [63], [64], [67], [71], [72], [73], [76], [78], [84], [88], [91], [92], [93], [102], [106], [110], [113], [116], [118], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [167], [169], [170], [171], [172], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [269], [270], [271], [273], [274], [275], [276], [279], [280], [281], [282], [283], [284], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-09 09:33:38,026 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:33:38,026 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:33:38,826 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 09:33:38,826 INFO L272 AbstractInterpreter]: Visited 121 different actions 755 times. Merged at 19 different actions 67 times. Never widened. Performed 28573 root evaluator evaluations with a maximum evaluation depth of 3. Performed 28573 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 12 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 09:33:38,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:38,828 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 09:33:38,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:38,828 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 09:33:38,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:38,834 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 09:33:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:38,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:33:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:33:38,969 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:33:39,132 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 09:33:39,151 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 09:33:39,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 09:33:39,151 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 09:33:39,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 09:33:39,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 09:33:39,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 09:33:39,152 INFO L87 Difference]: Start difference. First operand 2211 states and 2509 transitions. Second operand 15 states. [2018-12-09 09:33:40,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:40,064 INFO L93 Difference]: Finished difference Result 3903 states and 4831 transitions. [2018-12-09 09:33:40,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 09:33:40,064 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 151 [2018-12-09 09:33:40,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:40,070 INFO L225 Difference]: With dead ends: 3903 [2018-12-09 09:33:40,070 INFO L226 Difference]: Without dead ends: 2723 [2018-12-09 09:33:40,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 294 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 09:33:40,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2018-12-09 09:33:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2362. [2018-12-09 09:33:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2018-12-09 09:33:40,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2683 transitions. [2018-12-09 09:33:40,151 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2683 transitions. Word has length 151 [2018-12-09 09:33:40,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:40,152 INFO L480 AbstractCegarLoop]: Abstraction has 2362 states and 2683 transitions. [2018-12-09 09:33:40,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 09:33:40,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2683 transitions. [2018-12-09 09:33:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-12-09 09:33:40,155 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:40,155 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:40,155 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:40,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:40,156 INFO L82 PathProgramCache]: Analyzing trace with hash 665951606, now seen corresponding path program 1 times [2018-12-09 09:33:40,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:40,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:40,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:40,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:40,156 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:33:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-12-09 09:33:40,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:33:40,240 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:33:40,240 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-12-09 09:33:40,240 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [48], [52], [55], [56], [57], [58], [61], [63], [64], [67], [70], [72], [73], [76], [78], [84], [88], [91], [92], [93], [102], [106], [110], [116], [118], [121], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [167], [169], [170], [171], [172], [175], [177], [179], [180], [181], [184], [187], [191], [197], [226], [230], [231], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [279], [280], [281], [282], [285], [286], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-09 09:33:40,241 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:33:40,241 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:33:40,536 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:33:40,536 INFO L272 AbstractInterpreter]: Visited 87 different actions 268 times. Merged at 14 different actions 30 times. Never widened. Performed 9699 root evaluator evaluations with a maximum evaluation depth of 3. Performed 9699 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 09:33:40,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:40,538 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:33:40,720 INFO L227 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 97.02% of their original sizes. [2018-12-09 09:33:40,720 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:33:40,845 INFO L418 sIntCurrentIteration]: We unified 205 AI predicates to 205 [2018-12-09 09:33:40,845 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:33:40,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:33:40,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [8] total 34 [2018-12-09 09:33:40,846 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:33:40,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-12-09 09:33:40,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-12-09 09:33:40,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2018-12-09 09:33:40,846 INFO L87 Difference]: Start difference. First operand 2362 states and 2683 transitions. Second operand 28 states. [2018-12-09 09:33:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:33:43,288 INFO L93 Difference]: Finished difference Result 3894 states and 4437 transitions. [2018-12-09 09:33:43,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-09 09:33:43,288 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 206 [2018-12-09 09:33:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:33:43,292 INFO L225 Difference]: With dead ends: 3894 [2018-12-09 09:33:43,292 INFO L226 Difference]: Without dead ends: 2102 [2018-12-09 09:33:43,294 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 227 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=2121, Unknown=0, NotChecked=0, Total=2450 [2018-12-09 09:33:43,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2018-12-09 09:33:43,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 2102. [2018-12-09 09:33:43,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2018-12-09 09:33:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2388 transitions. [2018-12-09 09:33:43,354 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2388 transitions. Word has length 206 [2018-12-09 09:33:43,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:33:43,354 INFO L480 AbstractCegarLoop]: Abstraction has 2102 states and 2388 transitions. [2018-12-09 09:33:43,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-12-09 09:33:43,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2388 transitions. [2018-12-09 09:33:43,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-12-09 09:33:43,357 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:33:43,357 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:33:43,357 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:33:43,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:33:43,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1831404093, now seen corresponding path program 2 times [2018-12-09 09:33:43,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:33:43,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:43,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:33:43,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:33:43,358 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:33:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:33:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:33:43,486 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 09:33:43,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:33:43 BoogieIcfgContainer [2018-12-09 09:33:43,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 09:33:43,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 09:33:43,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 09:33:43,607 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 09:33:43,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:33:23" (3/4) ... [2018-12-09 09:33:43,609 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 09:33:43,719 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_35185230-f4c2-4e6d-8975-66924ffa9ced/bin-2019/utaipan/witness.graphml [2018-12-09 09:33:43,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 09:33:43,719 INFO L168 Benchmark]: Toolchain (without parser) took 20669.20 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 953.5 MB in the beginning and 843.3 MB in the end (delta: 110.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-09 09:33:43,720 INFO L168 Benchmark]: CDTParser took 0.14 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 09:33:43,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-12-09 09:33:43,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:33:43,721 INFO L168 Benchmark]: Boogie Preprocessor took 24.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:33:43,721 INFO L168 Benchmark]: RCFGBuilder took 318.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-12-09 09:33:43,721 INFO L168 Benchmark]: TraceAbstraction took 19864.41 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 890.2 MB). Free memory was 1.1 GB in the beginning and 913.5 MB in the end (delta: 176.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-09 09:33:43,721 INFO L168 Benchmark]: Witness Printer took 112.29 ms. Allocated memory is still 2.1 GB. Free memory was 913.5 MB in the beginning and 843.3 MB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. [2018-12-09 09:33:43,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 325.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19864.41 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 890.2 MB). Free memory was 1.1 GB in the beginning and 913.5 MB in the end (delta: 176.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 112.29 ms. Allocated memory is still 2.1 GB. Free memory was 913.5 MB in the beginning and 843.3 MB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] 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] [L128] 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] [L128] tmp = valid_product() [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] 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] [L862] 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] [L864] 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] [L870] tmp = __VERIFIER_nondet_int() [L872] 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] [L874] 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] [L776] COND TRUE waterLevel < 2 [L777] 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] [L874] 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] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] 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] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___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, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L907] 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] [L562] 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] [L569] 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] [L571] 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] [L617] 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] [L620] 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] [L635] CALL processEnvironment__wrappee__methaneQuery() 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] [L591] 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] [L594] 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] [L596] 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] [L731] int retValue_acc ; [L732] int tmp ; [L733] 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] [L737] 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] [L838] 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] [L841] COND FALSE !(waterLevel < 2) [L845] retValue_acc = 0 [L846] 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] [L737] 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] [L737] tmp = isHighWaterSensorDry() [L739] COND FALSE !(\read(tmp)) [L742] 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] [L744] retValue_acc = tmp___0 [L745] 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] [L596] 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] [L596] tmp = isHighWaterLevel() [L598] 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] [L600] 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] [L650] 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] [L654] 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] [L675] 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] [L679] 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] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] 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] [L679] 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] [L679] retValue_acc = isMethaneLevelCritical() [L681] 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] [L654] 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] [L654] tmp = isMethaneAlarm() [L656] 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] [L660] 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] [L645] 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] [L660] 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] [L600] 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] [L635] RET processEnvironment__wrappee__methaneQuery() 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] [L571] 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] [L577] 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] [L148] int tmp ; [L149] 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] [L153] 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] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] 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] [L153] 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] [L153] tmp = getWaterLevel() [L155] 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] [L577] 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] [L907] 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___1=1, tmp___2=0, waterLevel=2] [L862] 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___1=1, tmp___2=0, waterLevel=2] [L864] 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___1=1, tmp___2=0, waterLevel=2] [L870] tmp = __VERIFIER_nondet_int() [L872] 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___1=1, tmp___2=0, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___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=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L622] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L630] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L630] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L577] 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=0, pumpRunning=1, systemActive=1, waterLevel=1] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L577] 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=0, pumpRunning=1, systemActive=1, waterLevel=1] [L907] 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=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L862] 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=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L864] 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=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] 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___1=1, tmp___2=0, waterLevel=1] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___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=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L620] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L622] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L630] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L630] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L577] 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=0, pumpRunning=1, systemActive=1, waterLevel=0] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] tmp = getWaterLevel() [L155] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L157] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L157] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L157] tmp___0 = isPumpRunning() [L159] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L161] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L543] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 150 locations, 1 error locations. UNSAFE Result, 19.8s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 12.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2766 SDtfs, 3619 SDslu, 10369 SDs, 0 SdLazy, 5865 SolverSat, 1225 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1591 GetRequests, 1345 SyntacticMatches, 14 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2362occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 7 AbstIntIterations, 5 AbstIntStrong, 0.9977486388452917 AbsIntWeakeningRatio, 0.8479899497487438 AbsIntAvgWeakeningVarsNumRemoved, 48.4786432160804 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 599 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2203 NumberOfCodeBlocks, 2203 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2288 ConstructedInterpolants, 0 QuantifiedInterpolants, 470528 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1749 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 492/555 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...