./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product36_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_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product36_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/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 8094c843e4d897e4501a7b90ca3369f741555e9e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:23:45,512 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:23:45,514 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:23:45,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:23:45,522 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:23:45,523 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:23:45,524 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:23:45,525 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:23:45,526 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:23:45,527 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:23:45,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:23:45,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:23:45,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:23:45,529 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:23:45,530 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:23:45,531 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:23:45,531 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:23:45,533 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:23:45,534 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:23:45,535 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:23:45,536 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:23:45,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:23:45,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:23:45,539 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:23:45,539 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:23:45,540 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:23:45,540 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:23:45,541 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:23:45,542 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:23:45,542 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:23:45,543 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:23:45,543 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:23:45,543 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:23:45,543 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:23:45,544 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:23:45,544 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:23:45,545 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 17:23:45,555 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:23:45,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:23:45,556 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 17:23:45,556 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 17:23:45,556 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 17:23:45,557 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 17:23:45,557 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 17:23:45,557 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 17:23:45,557 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 17:23:45,557 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 17:23:45,557 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 17:23:45,557 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 17:23:45,557 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 17:23:45,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:23:45,558 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:23:45,558 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 17:23:45,558 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:23:45,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:23:45,559 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 17:23:45,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:23:45,559 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 17:23:45,559 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:23:45,559 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 17:23:45,559 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 17:23:45,559 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:23:45,560 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 17:23:45,560 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:23:45,560 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 17:23:45,560 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 17:23:45,560 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:23:45,560 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:23:45,560 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 17:23:45,561 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 17:23:45,561 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:23:45,561 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 17:23:45,561 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 17:23:45,561 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_dd7f11b4-903c-4b77-a496-4874ff77f6d7/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 -> 8094c843e4d897e4501a7b90ca3369f741555e9e [2018-12-09 17:23:45,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:23:45,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:23:45,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:23:45,596 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:23:45,597 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:23:45,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product36_false-unreach-call_false-termination.cil.c [2018-12-09 17:23:45,641 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/data/7ea91d7d6/f84eb46a393d44648317acbc3945c300/FLAGec6e0a6cb [2018-12-09 17:23:46,098 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:23:46,098 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/sv-benchmarks/c/product-lines/minepump_spec4_product36_false-unreach-call_false-termination.cil.c [2018-12-09 17:23:46,105 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/data/7ea91d7d6/f84eb46a393d44648317acbc3945c300/FLAGec6e0a6cb [2018-12-09 17:23:46,113 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/data/7ea91d7d6/f84eb46a393d44648317acbc3945c300 [2018-12-09 17:23:46,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:23:46,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:23:46,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:23:46,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:23:46,119 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:23:46,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46, skipping insertion in model container [2018-12-09 17:23:46,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:23:46,152 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:23:46,305 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:23:46,313 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:23:46,388 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:23:46,402 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:23:46,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46 WrapperNode [2018-12-09 17:23:46,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:23:46,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:23:46,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:23:46,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:23:46,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:23:46,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:23:46,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:23:46,424 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:23:46,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... [2018-12-09 17:23:46,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:23:46,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:23:46,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:23:46,445 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:23:46,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/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 17:23:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 17:23:46,478 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 17:23:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 17:23:46,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 17:23:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 17:23:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 17:23:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 17:23:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 17:23:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 17:23:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 17:23:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 17:23:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 17:23:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 17:23:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 17:23:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 17:23:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 17:23:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 17:23:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 17:23:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 17:23:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 17:23:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 17:23:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 17:23:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 17:23:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 17:23:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 17:23:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 17:23:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 17:23:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 17:23:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 17:23:46,482 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 17:23:46,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 17:23:46,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:23:46,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:23:46,741 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:23:46,742 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 17:23:46,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:23:46 BoogieIcfgContainer [2018-12-09 17:23:46,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:23:46,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 17:23:46,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 17:23:46,745 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 17:23:46,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:23:46" (1/3) ... [2018-12-09 17:23:46,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c889fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:23:46, skipping insertion in model container [2018-12-09 17:23:46,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:23:46" (2/3) ... [2018-12-09 17:23:46,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c889fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:23:46, skipping insertion in model container [2018-12-09 17:23:46,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:23:46" (3/3) ... [2018-12-09 17:23:46,747 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36_false-unreach-call_false-termination.cil.c [2018-12-09 17:23:46,753 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 17:23:46,758 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 17:23:46,767 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 17:23:46,786 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 17:23:46,786 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 17:23:46,786 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 17:23:46,786 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 17:23:46,786 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 17:23:46,787 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 17:23:46,787 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 17:23:46,787 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 17:23:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-12-09 17:23:46,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 17:23:46,804 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:46,804 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 17:23:46,806 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:46,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:46,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1140130264, now seen corresponding path program 1 times [2018-12-09 17:23:46,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:46,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:46,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:46,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:46,839 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:46,950 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 17:23:46,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:23:46,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 17:23:46,952 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:46,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 17:23:46,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 17:23:46,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 17:23:46,964 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 2 states. [2018-12-09 17:23:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:46,985 INFO L93 Difference]: Finished difference Result 236 states and 291 transitions. [2018-12-09 17:23:46,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 17:23:46,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 17:23:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:46,994 INFO L225 Difference]: With dead ends: 236 [2018-12-09 17:23:46,994 INFO L226 Difference]: Without dead ends: 118 [2018-12-09 17:23:46,996 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 17:23:47,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-09 17:23:47,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-09 17:23:47,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-09 17:23:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2018-12-09 17:23:47,027 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 46 [2018-12-09 17:23:47,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:47,027 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2018-12-09 17:23:47,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 17:23:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2018-12-09 17:23:47,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 17:23:47,029 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:47,029 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 17:23:47,029 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:47,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:47,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1764507038, now seen corresponding path program 1 times [2018-12-09 17:23:47,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:47,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:47,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,031 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:47,081 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 17:23:47,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:23:47,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:23:47,081 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:47,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:23:47,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:23:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:23:47,083 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 3 states. [2018-12-09 17:23:47,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:47,094 INFO L93 Difference]: Finished difference Result 172 states and 199 transitions. [2018-12-09 17:23:47,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:23:47,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 17:23:47,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:47,095 INFO L225 Difference]: With dead ends: 172 [2018-12-09 17:23:47,095 INFO L226 Difference]: Without dead ends: 109 [2018-12-09 17:23:47,096 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 17:23:47,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-09 17:23:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-12-09 17:23:47,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-09 17:23:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2018-12-09 17:23:47,103 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 47 [2018-12-09 17:23:47,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:47,103 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2018-12-09 17:23:47,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:23:47,103 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2018-12-09 17:23:47,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 17:23:47,104 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:47,104 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 17:23:47,104 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:47,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:47,104 INFO L82 PathProgramCache]: Analyzing trace with hash -737217963, now seen corresponding path program 1 times [2018-12-09 17:23:47,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:47,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:47,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,105 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:47,175 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 17:23:47,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:23:47,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 17:23:47,176 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:47,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 17:23:47,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 17:23:47,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:23:47,177 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand 7 states. [2018-12-09 17:23:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:47,383 INFO L93 Difference]: Finished difference Result 329 states and 395 transitions. [2018-12-09 17:23:47,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 17:23:47,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 17:23:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:47,386 INFO L225 Difference]: With dead ends: 329 [2018-12-09 17:23:47,386 INFO L226 Difference]: Without dead ends: 244 [2018-12-09 17:23:47,387 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 17:23:47,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-12-09 17:23:47,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 220. [2018-12-09 17:23:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-12-09 17:23:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 262 transitions. [2018-12-09 17:23:47,413 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 262 transitions. Word has length 52 [2018-12-09 17:23:47,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:47,413 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 262 transitions. [2018-12-09 17:23:47,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 17:23:47,413 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 262 transitions. [2018-12-09 17:23:47,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 17:23:47,415 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:47,415 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:23:47,415 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:47,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:47,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1608189482, now seen corresponding path program 1 times [2018-12-09 17:23:47,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:47,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:47,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,417 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:47,510 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 17:23:47,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:23:47,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 17:23:47,510 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:47,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 17:23:47,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 17:23:47,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 17:23:47,511 INFO L87 Difference]: Start difference. First operand 220 states and 262 transitions. Second operand 10 states. [2018-12-09 17:23:47,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:47,771 INFO L93 Difference]: Finished difference Result 760 states and 988 transitions. [2018-12-09 17:23:47,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 17:23:47,771 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-09 17:23:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:47,774 INFO L225 Difference]: With dead ends: 760 [2018-12-09 17:23:47,774 INFO L226 Difference]: Without dead ends: 564 [2018-12-09 17:23:47,775 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 17:23:47,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2018-12-09 17:23:47,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 552. [2018-12-09 17:23:47,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2018-12-09 17:23:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 686 transitions. [2018-12-09 17:23:47,800 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 686 transitions. Word has length 57 [2018-12-09 17:23:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:47,801 INFO L480 AbstractCegarLoop]: Abstraction has 552 states and 686 transitions. [2018-12-09 17:23:47,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 17:23:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 686 transitions. [2018-12-09 17:23:47,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 17:23:47,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:47,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:23:47,803 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:47,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:47,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1575007792, now seen corresponding path program 1 times [2018-12-09 17:23:47,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:47,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:47,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:47,804 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:47,846 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 17:23:47,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:23:47,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 17:23:47,847 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:47,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 17:23:47,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 17:23:47,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 17:23:47,847 INFO L87 Difference]: Start difference. First operand 552 states and 686 transitions. Second operand 4 states. [2018-12-09 17:23:48,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:48,025 INFO L93 Difference]: Finished difference Result 1455 states and 1966 transitions. [2018-12-09 17:23:48,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 17:23:48,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-09 17:23:48,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:48,029 INFO L225 Difference]: With dead ends: 1455 [2018-12-09 17:23:48,029 INFO L226 Difference]: Without dead ends: 927 [2018-12-09 17:23:48,031 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:23:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2018-12-09 17:23:48,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 813. [2018-12-09 17:23:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2018-12-09 17:23:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1018 transitions. [2018-12-09 17:23:48,070 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1018 transitions. Word has length 61 [2018-12-09 17:23:48,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:48,070 INFO L480 AbstractCegarLoop]: Abstraction has 813 states and 1018 transitions. [2018-12-09 17:23:48,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 17:23:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1018 transitions. [2018-12-09 17:23:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:23:48,073 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:48,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:23:48,073 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:48,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:48,073 INFO L82 PathProgramCache]: Analyzing trace with hash -301708314, now seen corresponding path program 1 times [2018-12-09 17:23:48,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:48,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:48,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:48,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:48,074 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 17:23:48,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 17:23:48,182 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 17:23:48,182 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-12-09 17:23:48,183 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [79], [88], [92], [96], [99], [104], [110], [112], [118], [121], [124], [132], [133], [136], [137], [187], [194], [197], [205], [213], [217], [218], [221], [222], [223], [224], [225], [227], [228], [229], [230], [231], [232], [233], [234], [235], [239], [249], [250], [255], [256], [257], [258], [271], [272], [273], [274], [275] [2018-12-09 17:23:48,208 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 17:23:48,209 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 17:23:48,663 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 17:23:48,664 INFO L272 AbstractInterpreter]: Visited 67 different actions 137 times. Merged at 13 different actions 19 times. Never widened. Performed 5095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 17:23:48,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:48,672 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 17:23:48,673 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 17:23:48,673 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/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 17:23:48,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:48,682 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 17:23:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:48,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 17:23:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:23:48,835 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 17:23:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 17:23:48,991 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 17:23:48,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-09 17:23:48,992 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 17:23:48,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 17:23:48,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 17:23:48,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-09 17:23:48,993 INFO L87 Difference]: Start difference. First operand 813 states and 1018 transitions. Second operand 12 states. [2018-12-09 17:23:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:50,527 INFO L93 Difference]: Finished difference Result 1973 states and 2675 transitions. [2018-12-09 17:23:50,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-12-09 17:23:50,527 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2018-12-09 17:23:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:50,533 INFO L225 Difference]: With dead ends: 1973 [2018-12-09 17:23:50,533 INFO L226 Difference]: Without dead ends: 1414 [2018-12-09 17:23:50,536 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=629, Invalid=2451, Unknown=0, NotChecked=0, Total=3080 [2018-12-09 17:23:50,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2018-12-09 17:23:50,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1233. [2018-12-09 17:23:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2018-12-09 17:23:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1565 transitions. [2018-12-09 17:23:50,587 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1565 transitions. Word has length 89 [2018-12-09 17:23:50,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:50,587 INFO L480 AbstractCegarLoop]: Abstraction has 1233 states and 1565 transitions. [2018-12-09 17:23:50,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 17:23:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1565 transitions. [2018-12-09 17:23:50,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-12-09 17:23:50,588 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:50,589 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:23:50,589 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:50,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:50,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1231184770, now seen corresponding path program 1 times [2018-12-09 17:23:50,589 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:50,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:50,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:50,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:50,590 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 17:23:50,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 17:23:50,650 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 17:23:50,651 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 112 with the following transitions: [2018-12-09 17:23:50,651 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [53], [56], [58], [59], [62], [64], [67], [74], [77], [78], [79], [88], [92], [96], [102], [104], [110], [112], [118], [124], [132], [133], [134], [135], [136], [137], [138], [140], [145], [147], [148], [184], [187], [191], [197], [200], [204], [205], [218], [221], [222], [223], [224], [225], [227], [228], [229], [230], [231], [232], [233], [234], [235], [239], [241], [242], [243], [244], [247], [248], [257], [258], [261], [262], [267], [268], [269], [270], [271], [272], [273], [274], [275] [2018-12-09 17:23:50,653 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 17:23:50,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 17:23:50,773 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 17:23:50,774 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 1817 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1817 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 17:23:50,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:50,775 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 17:23:50,895 INFO L227 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 97.3% of their original sizes. [2018-12-09 17:23:50,895 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 17:23:50,938 INFO L418 sIntCurrentIteration]: We unified 110 AI predicates to 110 [2018-12-09 17:23:50,938 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 17:23:50,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 17:23:50,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-09 17:23:50,939 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:50,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 17:23:50,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 17:23:50,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-09 17:23:50,939 INFO L87 Difference]: Start difference. First operand 1233 states and 1565 transitions. Second operand 9 states. [2018-12-09 17:23:51,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:51,837 INFO L93 Difference]: Finished difference Result 2656 states and 3385 transitions. [2018-12-09 17:23:51,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 17:23:51,837 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2018-12-09 17:23:51,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:51,843 INFO L225 Difference]: With dead ends: 2656 [2018-12-09 17:23:51,843 INFO L226 Difference]: Without dead ends: 1447 [2018-12-09 17:23:51,846 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 17:23:51,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2018-12-09 17:23:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1416. [2018-12-09 17:23:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2018-12-09 17:23:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1785 transitions. [2018-12-09 17:23:51,893 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1785 transitions. Word has length 111 [2018-12-09 17:23:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:51,894 INFO L480 AbstractCegarLoop]: Abstraction has 1416 states and 1785 transitions. [2018-12-09 17:23:51,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 17:23:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1785 transitions. [2018-12-09 17:23:51,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-12-09 17:23:51,896 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:51,896 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:23:51,896 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:51,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:51,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1654451110, now seen corresponding path program 1 times [2018-12-09 17:23:51,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:51,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:51,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:51,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:51,897 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 17:23:51,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:23:51,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 17:23:51,934 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:51,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 17:23:51,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 17:23:51,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 17:23:51,935 INFO L87 Difference]: Start difference. First operand 1416 states and 1785 transitions. Second operand 4 states. [2018-12-09 17:23:52,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:52,044 INFO L93 Difference]: Finished difference Result 2183 states and 2756 transitions. [2018-12-09 17:23:52,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 17:23:52,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2018-12-09 17:23:52,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:52,048 INFO L225 Difference]: With dead ends: 2183 [2018-12-09 17:23:52,048 INFO L226 Difference]: Without dead ends: 791 [2018-12-09 17:23:52,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 17:23:52,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2018-12-09 17:23:52,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 768. [2018-12-09 17:23:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2018-12-09 17:23:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 944 transitions. [2018-12-09 17:23:52,076 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 944 transitions. Word has length 119 [2018-12-09 17:23:52,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:52,076 INFO L480 AbstractCegarLoop]: Abstraction has 768 states and 944 transitions. [2018-12-09 17:23:52,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 17:23:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 944 transitions. [2018-12-09 17:23:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-12-09 17:23:52,077 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:52,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:23:52,078 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:52,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:52,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1176791872, now seen corresponding path program 1 times [2018-12-09 17:23:52,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:52,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:52,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:52,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:52,079 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 17:23:52,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 17:23:52,117 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 17:23:52,117 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 112 with the following transitions: [2018-12-09 17:23:52,117 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [53], [56], [58], [59], [62], [64], [67], [74], [77], [78], [79], [88], [92], [96], [102], [104], [110], [112], [118], [124], [132], [133], [134], [135], [136], [137], [138], [140], [143], [147], [148], [184], [187], [191], [197], [200], [204], [205], [218], [221], [222], [223], [224], [225], [227], [228], [229], [230], [231], [232], [233], [234], [235], [239], [241], [242], [243], [244], [247], [248], [257], [258], [261], [262], [267], [268], [269], [270], [271], [272], [273], [274], [275] [2018-12-09 17:23:52,119 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 17:23:52,119 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 17:23:52,454 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 17:23:52,454 INFO L272 AbstractInterpreter]: Visited 89 different actions 275 times. Merged at 15 different actions 29 times. Never widened. Performed 9172 root evaluator evaluations with a maximum evaluation depth of 3. Performed 9172 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 17:23:52,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:52,455 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 17:23:52,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 17:23:52,455 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/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 17:23:52,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:52,464 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 17:23:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:52,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 17:23:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 17:23:52,556 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 17:23:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 17:23:52,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 17:23:52,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 17:23:52,680 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:23:52,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:23:52,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:23:52,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:23:52,681 INFO L87 Difference]: Start difference. First operand 768 states and 944 transitions. Second operand 6 states. [2018-12-09 17:23:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:52,731 INFO L93 Difference]: Finished difference Result 1477 states and 1850 transitions. [2018-12-09 17:23:52,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 17:23:52,732 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-12-09 17:23:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:52,735 INFO L225 Difference]: With dead ends: 1477 [2018-12-09 17:23:52,735 INFO L226 Difference]: Without dead ends: 733 [2018-12-09 17:23:52,737 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 217 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:23:52,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2018-12-09 17:23:52,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2018-12-09 17:23:52,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-12-09 17:23:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 896 transitions. [2018-12-09 17:23:52,775 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 896 transitions. Word has length 111 [2018-12-09 17:23:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:52,775 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 896 transitions. [2018-12-09 17:23:52,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:23:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 896 transitions. [2018-12-09 17:23:52,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-09 17:23:52,776 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:52,776 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:23:52,777 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:52,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:52,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1063126301, now seen corresponding path program 1 times [2018-12-09 17:23:52,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:52,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:52,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:52,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:52,778 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 17:23:52,860 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 17:23:52,860 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 17:23:52,860 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-12-09 17:23:52,861 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [53], [57], [58], [59], [62], [64], [67], [74], [77], [78], [79], [88], [92], [96], [99], [102], [104], [110], [112], [118], [124], [132], [133], [134], [135], [136], [137], [138], [140], [145], [147], [148], [184], [187], [191], [197], [200], [204], [205], [213], [217], [218], [221], [222], [223], [224], [225], [227], [228], [229], [230], [231], [232], [233], [234], [235], [239], [241], [242], [243], [244], [247], [248], [249], [250], [257], [258], [261], [262], [267], [268], [269], [270], [271], [272], [273], [274], [275] [2018-12-09 17:23:52,862 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 17:23:52,862 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 17:23:53,345 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 17:23:53,345 INFO L272 AbstractInterpreter]: Visited 94 different actions 379 times. Merged at 16 different actions 46 times. Never widened. Performed 13623 root evaluator evaluations with a maximum evaluation depth of 3. Performed 13623 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 17:23:53,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:53,347 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 17:23:53,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 17:23:53,347 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 17:23:53,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:53,355 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 17:23:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:23:53,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 17:23:53,475 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:23:53,475 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 17:23:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 17:23:53,602 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 17:23:53,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 17:23:53,603 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 17:23:53,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 17:23:53,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 17:23:53,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 17:23:53,604 INFO L87 Difference]: Start difference. First operand 733 states and 896 transitions. Second operand 15 states. [2018-12-09 17:23:54,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:23:54,278 INFO L93 Difference]: Finished difference Result 1474 states and 1936 transitions. [2018-12-09 17:23:54,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 17:23:54,278 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 115 [2018-12-09 17:23:54,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:23:54,280 INFO L225 Difference]: With dead ends: 1474 [2018-12-09 17:23:54,280 INFO L226 Difference]: Without dead ends: 860 [2018-12-09 17:23:54,282 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 222 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 17:23:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2018-12-09 17:23:54,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 649. [2018-12-09 17:23:54,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2018-12-09 17:23:54,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 792 transitions. [2018-12-09 17:23:54,305 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 792 transitions. Word has length 115 [2018-12-09 17:23:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:23:54,305 INFO L480 AbstractCegarLoop]: Abstraction has 649 states and 792 transitions. [2018-12-09 17:23:54,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 17:23:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 792 transitions. [2018-12-09 17:23:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-09 17:23:54,307 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:23:54,307 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, 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] [2018-12-09 17:23:54,307 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:23:54,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:23:54,307 INFO L82 PathProgramCache]: Analyzing trace with hash -2133364984, now seen corresponding path program 2 times [2018-12-09 17:23:54,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:23:54,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:54,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:23:54,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:23:54,308 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:23:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:23:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:23:54,399 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 17:23:54,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:23:54 BoogieIcfgContainer [2018-12-09 17:23:54,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 17:23:54,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:23:54,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:23:54,497 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:23:54,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:23:46" (3/4) ... [2018-12-09 17:23:54,499 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 17:23:54,586 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dd7f11b4-903c-4b77-a496-4874ff77f6d7/bin-2019/utaipan/witness.graphml [2018-12-09 17:23:54,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:23:54,587 INFO L168 Benchmark]: Toolchain (without parser) took 8471.06 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 364.9 MB). Free memory was 952.4 MB in the beginning and 715.4 MB in the end (delta: 237.0 MB). Peak memory consumption was 601.9 MB. Max. memory is 11.5 GB. [2018-12-09 17:23:54,588 INFO L168 Benchmark]: CDTParser took 0.18 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 17:23:54,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 69.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -99.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:23:54,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:23:54,588 INFO L168 Benchmark]: Boogie Preprocessor took 21.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:23:54,588 INFO L168 Benchmark]: RCFGBuilder took 296.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-12-09 17:23:54,588 INFO L168 Benchmark]: TraceAbstraction took 7754.02 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 295.7 MB). Free memory was 1.0 GB in the beginning and 767.0 MB in the end (delta: 233.6 MB). Peak memory consumption was 529.3 MB. Max. memory is 11.5 GB. [2018-12-09 17:23:54,588 INFO L168 Benchmark]: Witness Printer took 89.63 ms. Allocated memory is still 1.4 GB. Free memory was 767.0 MB in the beginning and 715.4 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. [2018-12-09 17:23:54,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 285.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 69.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -99.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 296.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7754.02 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 295.7 MB). Free memory was 1.0 GB in the beginning and 767.0 MB in the end (delta: 233.6 MB). Peak memory consumption was 529.3 MB. Max. memory is 11.5 GB. * Witness Printer took 89.63 ms. Allocated memory is still 1.4 GB. Free memory was 767.0 MB in the beginning and 715.4 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; [L375] int retValue_acc ; [L376] 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] [L380] 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] [L381] 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] [L382] 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] [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] 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] [L382] 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] [L382] tmp = valid_product() [L384] 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] [L386] 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] [L387] 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] [L366] 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] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] 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] [L56] 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] [L58] 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] [L64] tmp = __VERIFIER_nondet_int() [L66] 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] [L68] 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] [L827] COND TRUE waterLevel < 2 [L828] 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] [L68] 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] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] 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] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\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=0, tmp___2=0, waterLevel=2] [L103] 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] [L131] 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] [L138] 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] [L140] 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] [L160] 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] [L163] 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] [L165] 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] [L257] int retValue_acc ; [L258] int tmp ; [L259] 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] [L263] 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] [L889] 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] [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] 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] [L263] 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] [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] 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] [L270] retValue_acc = tmp___0 [L271] 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] [L165] 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] [L165] tmp = isHighWaterLevel() [L167] 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] [L169] 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] [L188] 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] [L169] 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] [L140] 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] [L146] 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] [L904] int tmp ; [L905] 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] [L909] 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] [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] 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] [L909] 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] [L909] tmp = getWaterLevel() [L911] 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] [L146] 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] [L103] 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=0, tmp___2=0, waterLevel=2] [L56] 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=0, tmp___2=0, waterLevel=2] [L58] 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=0, tmp___2=0, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] 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=0, tmp___2=0, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] 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=0, tmp___2=0, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\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=0, tmp___2=0, waterLevel=2] [L103] 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] [L131] 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] [L133] 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] [L815] COND TRUE waterLevel > 0 [L816] 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] [L133] 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] [L138] 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] [L140] 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] [L160] 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] [L163] 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] [L178] 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] [L140] 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] [L146] 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] [L904] int tmp ; [L905] 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] [L909] 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] [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] 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] [L909] 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] [L909] tmp = getWaterLevel() [L911] 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] [L146] 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] [L103] 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=0, tmp___2=0, waterLevel=1] [L56] 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=0, tmp___2=0, waterLevel=1] [L58] 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=0, tmp___2=0, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] 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=0, tmp___2=0, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] 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=0, tmp___2=0, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\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=0, tmp___2=0, waterLevel=1] [L103] 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] [L131] 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] [L133] 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] [L815] COND TRUE waterLevel > 0 [L816] 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] [L133] 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] [L138] 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] [L140] 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] [L160] 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] [L163] 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] [L178] 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] [L140] 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] [L146] 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] [L904] int tmp ; [L905] 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] [L909] 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] [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] 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] [L909] 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] [L909] tmp = getWaterLevel() [L911] 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] [L913] 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] [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] 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] [L913] 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] [L913] tmp___0 = isPumpRunning() [L915] 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] [L917] 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] [L437] __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 26 procedures, 131 locations, 1 error locations. UNSAFE Result, 7.7s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 4.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1508 SDtfs, 2402 SDslu, 3666 SDs, 0 SdLazy, 3886 SolverSat, 1428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 898 GetRequests, 748 SyntacticMatches, 21 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1416occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9977034815377845 AbsIntWeakeningRatio, 1.0 AbsIntAvgWeakeningVarsNumRemoved, 62.63636363636363 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 596 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1274 NumberOfCodeBlocks, 1274 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1422 ConstructedInterpolants, 0 QuantifiedInterpolants, 226054 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2292 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 241/271 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...