./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/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 2bf5cdbd1397f8c2609b4d66a963cb35955afadc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 13:27:38,465 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:27:38,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:27:38,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:27:38,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:27:38,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:27:38,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:27:38,478 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:27:38,479 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:27:38,480 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:27:38,480 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:27:38,480 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:27:38,481 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:27:38,482 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:27:38,483 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:27:38,483 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:27:38,484 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:27:38,485 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:27:38,487 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:27:38,488 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:27:38,489 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:27:38,490 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:27:38,491 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:27:38,492 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:27:38,492 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:27:38,493 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:27:38,493 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:27:38,494 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:27:38,495 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:27:38,496 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:27:38,496 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:27:38,496 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:27:38,497 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:27:38,497 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:27:38,498 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:27:38,498 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:27:38,498 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 13:27:38,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:27:38,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:27:38,509 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 13:27:38,510 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 13:27:38,510 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 13:27:38,511 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:27:38,511 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 13:27:38,511 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:27:38,511 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 13:27:38,511 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:27:38,512 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 13:27:38,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 13:27:38,512 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 13:27:38,512 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 13:27:38,512 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 13:27:38,512 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 13:27:38,512 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:27:38,512 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 13:27:38,513 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 13:27:38,513 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 13:27:38,513 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_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/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 -> 2bf5cdbd1397f8c2609b4d66a963cb35955afadc [2018-12-02 13:27:38,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:27:38,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:27:38,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:27:38,545 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:27:38,545 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:27:38,545 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c [2018-12-02 13:27:38,578 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/data/2335db65e/b224f0142d764fc3b46fbf3069763a81/FLAGf7bfc3e2e [2018-12-02 13:27:39,024 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:27:39,025 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c [2018-12-02 13:27:39,031 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/data/2335db65e/b224f0142d764fc3b46fbf3069763a81/FLAGf7bfc3e2e [2018-12-02 13:27:39,039 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/data/2335db65e/b224f0142d764fc3b46fbf3069763a81 [2018-12-02 13:27:39,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:27:39,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:27:39,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:27:39,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:27:39,044 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:27:39,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39, skipping insertion in model container [2018-12-02 13:27:39,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:27:39,069 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:27:39,212 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:27:39,219 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:27:39,302 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:27:39,316 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:27:39,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39 WrapperNode [2018-12-02 13:27:39,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:27:39,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:27:39,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:27:39,317 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:27:39,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:27:39,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:27:39,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:27:39,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:27:39,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... [2018-12-02 13:27:39,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:27:39,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:27:39,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:27:39,359 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:27:39,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 13:27:39,399 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 13:27:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 13:27:39,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 13:27:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 13:27:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 13:27:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 13:27:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 13:27:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 13:27:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 13:27:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 13:27:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 13:27:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 13:27:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 13:27:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 13:27:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 13:27:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 13:27:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 13:27:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 13:27:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 13:27:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 13:27:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 13:27:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 13:27:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 13:27:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 13:27:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 13:27:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 13:27:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 13:27:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 13:27:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 13:27:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 13:27:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 13:27:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 13:27:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 13:27:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 13:27:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 13:27:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 13:27:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 13:27:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 13:27:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 13:27:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 13:27:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 13:27:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 13:27:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 13:27:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 13:27:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 13:27:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 13:27:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:27:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:27:39,724 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:27:39,724 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 13:27:39,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:27:39 BoogieIcfgContainer [2018-12-02 13:27:39,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:27:39,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 13:27:39,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 13:27:39,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 13:27:39,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:27:39" (1/3) ... [2018-12-02 13:27:39,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c00dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:27:39, skipping insertion in model container [2018-12-02 13:27:39,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:27:39" (2/3) ... [2018-12-02 13:27:39,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c00dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:27:39, skipping insertion in model container [2018-12-02 13:27:39,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:27:39" (3/3) ... [2018-12-02 13:27:39,730 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33_false-unreach-call_false-termination.cil.c [2018-12-02 13:27:39,736 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 13:27:39,741 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 13:27:39,750 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 13:27:39,768 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 13:27:39,768 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 13:27:39,768 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 13:27:39,768 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 13:27:39,768 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 13:27:39,768 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 13:27:39,768 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 13:27:39,768 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 13:27:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2018-12-02 13:27:39,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 13:27:39,784 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:39,784 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:27:39,786 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:39,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:39,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1398061837, now seen corresponding path program 1 times [2018-12-02 13:27:39,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:39,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:39,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:39,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:39,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:27:39,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:27:39,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 13:27:39,929 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:39,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 13:27:39,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 13:27:39,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 13:27:39,941 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2018-12-02 13:27:39,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:39,961 INFO L93 Difference]: Finished difference Result 210 states and 263 transitions. [2018-12-02 13:27:39,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 13:27:39,962 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 13:27:39,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:39,968 INFO L225 Difference]: With dead ends: 210 [2018-12-02 13:27:39,968 INFO L226 Difference]: Without dead ends: 105 [2018-12-02 13:27:39,971 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 13:27:39,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-12-02 13:27:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-12-02 13:27:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-02 13:27:39,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2018-12-02 13:27:39,999 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2018-12-02 13:27:39,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:40,000 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2018-12-02 13:27:40,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 13:27:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2018-12-02 13:27:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 13:27:40,001 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:40,002 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:27:40,002 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:40,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:40,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1899286830, now seen corresponding path program 1 times [2018-12-02 13:27:40,002 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:40,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:40,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,003 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:27:40,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:27:40,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 13:27:40,059 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:40,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 13:27:40,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 13:27:40,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 13:27:40,061 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 3 states. [2018-12-02 13:27:40,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:40,071 INFO L93 Difference]: Finished difference Result 159 states and 185 transitions. [2018-12-02 13:27:40,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 13:27:40,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 13:27:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:40,073 INFO L225 Difference]: With dead ends: 159 [2018-12-02 13:27:40,073 INFO L226 Difference]: Without dead ends: 96 [2018-12-02 13:27:40,074 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 13:27:40,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-02 13:27:40,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-02 13:27:40,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-02 13:27:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2018-12-02 13:27:40,080 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2018-12-02 13:27:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:40,080 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2018-12-02 13:27:40,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 13:27:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2018-12-02 13:27:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 13:27:40,081 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:40,082 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:27:40,082 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:40,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:40,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1713463770, now seen corresponding path program 1 times [2018-12-02 13:27:40,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:40,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:40,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,083 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:40,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:27:40,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:27:40,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 13:27:40,157 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:40,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 13:27:40,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 13:27:40,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 13:27:40,158 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 7 states. [2018-12-02 13:27:40,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:40,313 INFO L93 Difference]: Finished difference Result 168 states and 199 transitions. [2018-12-02 13:27:40,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 13:27:40,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 13:27:40,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:40,314 INFO L225 Difference]: With dead ends: 168 [2018-12-02 13:27:40,314 INFO L226 Difference]: Without dead ends: 96 [2018-12-02 13:27:40,314 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 13:27:40,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-02 13:27:40,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-02 13:27:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-02 13:27:40,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2018-12-02 13:27:40,321 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2018-12-02 13:27:40,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:40,321 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2018-12-02 13:27:40,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 13:27:40,321 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2018-12-02 13:27:40,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-02 13:27:40,322 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:40,322 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:27:40,322 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:40,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:40,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1090696163, now seen corresponding path program 1 times [2018-12-02 13:27:40,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:40,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:40,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,323 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:27:40,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:27:40,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 13:27:40,368 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:40,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 13:27:40,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 13:27:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 13:27:40,369 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 5 states. [2018-12-02 13:27:40,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:40,599 INFO L93 Difference]: Finished difference Result 251 states and 303 transitions. [2018-12-02 13:27:40,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 13:27:40,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2018-12-02 13:27:40,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:40,601 INFO L225 Difference]: With dead ends: 251 [2018-12-02 13:27:40,602 INFO L226 Difference]: Without dead ends: 179 [2018-12-02 13:27:40,602 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-02 13:27:40,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-12-02 13:27:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2018-12-02 13:27:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-12-02 13:27:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2018-12-02 13:27:40,620 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2018-12-02 13:27:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:40,620 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2018-12-02 13:27:40,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 13:27:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2018-12-02 13:27:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-02 13:27:40,623 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:40,623 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:27:40,623 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:40,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:40,623 INFO L82 PathProgramCache]: Analyzing trace with hash 936611503, now seen corresponding path program 1 times [2018-12-02 13:27:40,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:40,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:40,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:40,624 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:27:40,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:27:40,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 13:27:40,704 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:40,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 13:27:40,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 13:27:40,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 13:27:40,705 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 10 states. [2018-12-02 13:27:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:40,969 INFO L93 Difference]: Finished difference Result 509 states and 644 transitions. [2018-12-02 13:27:40,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 13:27:40,970 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2018-12-02 13:27:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:40,974 INFO L225 Difference]: With dead ends: 509 [2018-12-02 13:27:40,974 INFO L226 Difference]: Without dead ends: 372 [2018-12-02 13:27:40,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-02 13:27:40,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-12-02 13:27:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 362. [2018-12-02 13:27:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2018-12-02 13:27:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 432 transitions. [2018-12-02 13:27:41,006 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 432 transitions. Word has length 73 [2018-12-02 13:27:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:41,006 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 432 transitions. [2018-12-02 13:27:41,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 13:27:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 432 transitions. [2018-12-02 13:27:41,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-12-02 13:27:41,009 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:41,009 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] [2018-12-02 13:27:41,009 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:41,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:41,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1276257961, now seen corresponding path program 1 times [2018-12-02 13:27:41,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:41,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:41,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:41,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:41,011 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 13:27:41,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:27:41,079 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:27:41,079 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-12-02 13:27:41,081 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [64], [66], [67], [68], [77], [81], [85], [88], [91], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [198], [202], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [232], [233], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-02 13:27:41,107 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:27:41,107 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:27:41,429 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 13:27:41,430 INFO L272 AbstractInterpreter]: Visited 59 different actions 85 times. Merged at 5 different actions 5 times. Never widened. Performed 4032 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4032 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 13:27:41,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:41,438 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 13:27:41,637 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 97.32% of their original sizes. [2018-12-02 13:27:41,637 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 13:27:41,718 INFO L418 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2018-12-02 13:27:41,718 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 13:27:41,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:27:41,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-12-02 13:27:41,719 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:41,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-02 13:27:41,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-02 13:27:41,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-12-02 13:27:41,720 INFO L87 Difference]: Start difference. First operand 362 states and 432 transitions. Second operand 16 states. [2018-12-02 13:27:43,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:43,686 INFO L93 Difference]: Finished difference Result 934 states and 1202 transitions. [2018-12-02 13:27:43,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 13:27:43,687 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 113 [2018-12-02 13:27:43,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:43,689 INFO L225 Difference]: With dead ends: 934 [2018-12-02 13:27:43,689 INFO L226 Difference]: Without dead ends: 596 [2018-12-02 13:27:43,690 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2018-12-02 13:27:43,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2018-12-02 13:27:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 559. [2018-12-02 13:27:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2018-12-02 13:27:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 672 transitions. [2018-12-02 13:27:43,712 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 672 transitions. Word has length 113 [2018-12-02 13:27:43,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:43,713 INFO L480 AbstractCegarLoop]: Abstraction has 559 states and 672 transitions. [2018-12-02 13:27:43,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-02 13:27:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 672 transitions. [2018-12-02 13:27:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-12-02 13:27:43,714 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:43,715 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] [2018-12-02 13:27:43,715 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:43,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:43,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1884334824, now seen corresponding path program 1 times [2018-12-02 13:27:43,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:43,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:43,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:43,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:43,717 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 13:27:43,755 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:27:43,755 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:27:43,755 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-12-02 13:27:43,756 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [65], [66], [67], [68], [77], [81], [85], [88], [91], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [198], [202], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [232], [233], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-02 13:27:43,758 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:27:43,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:27:43,885 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 13:27:43,886 INFO L272 AbstractInterpreter]: Visited 54 different actions 71 times. Merged at 5 different actions 5 times. Never widened. Performed 3986 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3986 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 13:27:43,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:43,887 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 13:27:43,989 INFO L227 lantSequenceWeakener]: Weakened 63 states. On average, predicates are now at 97.3% of their original sizes. [2018-12-02 13:27:43,989 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 13:27:44,040 INFO L418 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2018-12-02 13:27:44,040 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 13:27:44,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:27:44,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-12-02 13:27:44,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:44,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 13:27:44,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 13:27:44,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-02 13:27:44,041 INFO L87 Difference]: Start difference. First operand 559 states and 672 transitions. Second operand 12 states. [2018-12-02 13:27:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:44,956 INFO L93 Difference]: Finished difference Result 1057 states and 1301 transitions. [2018-12-02 13:27:44,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 13:27:44,957 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2018-12-02 13:27:44,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:44,959 INFO L225 Difference]: With dead ends: 1057 [2018-12-02 13:27:44,959 INFO L226 Difference]: Without dead ends: 574 [2018-12-02 13:27:44,960 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-12-02 13:27:44,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2018-12-02 13:27:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 559. [2018-12-02 13:27:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2018-12-02 13:27:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 671 transitions. [2018-12-02 13:27:44,990 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 671 transitions. Word has length 113 [2018-12-02 13:27:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:44,991 INFO L480 AbstractCegarLoop]: Abstraction has 559 states and 671 transitions. [2018-12-02 13:27:44,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 13:27:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 671 transitions. [2018-12-02 13:27:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-12-02 13:27:44,992 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:44,992 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:27:44,992 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:44,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:44,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1894278496, now seen corresponding path program 1 times [2018-12-02 13:27:44,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:44,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:44,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:44,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:44,993 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 13:27:45,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:27:45,049 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:27:45,049 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-12-02 13:27:45,049 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [65], [66], [67], [68], [77], [81], [85], [88], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [130], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [198], [202], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [232], [233], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-02 13:27:45,051 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:27:45,051 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:27:45,180 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 13:27:45,180 INFO L272 AbstractInterpreter]: Visited 77 different actions 85 times. Merged at 5 different actions 5 times. Never widened. Performed 2860 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2860 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 132 variables. [2018-12-02 13:27:45,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:45,182 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 13:27:45,333 INFO L227 lantSequenceWeakener]: Weakened 100 states. On average, predicates are now at 97.44% of their original sizes. [2018-12-02 13:27:45,333 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 13:27:45,469 INFO L418 sIntCurrentIteration]: We unified 116 AI predicates to 116 [2018-12-02 13:27:45,469 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 13:27:45,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 13:27:45,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [5] total 27 [2018-12-02 13:27:45,469 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 13:27:45,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-12-02 13:27:45,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-12-02 13:27:45,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2018-12-02 13:27:45,470 INFO L87 Difference]: Start difference. First operand 559 states and 671 transitions. Second operand 24 states. [2018-12-02 13:27:46,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:46,887 INFO L93 Difference]: Finished difference Result 878 states and 1060 transitions. [2018-12-02 13:27:46,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 13:27:46,887 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 117 [2018-12-02 13:27:46,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:46,888 INFO L225 Difference]: With dead ends: 878 [2018-12-02 13:27:46,888 INFO L226 Difference]: Without dead ends: 395 [2018-12-02 13:27:46,889 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=978, Unknown=0, NotChecked=0, Total=1122 [2018-12-02 13:27:46,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-12-02 13:27:46,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2018-12-02 13:27:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2018-12-02 13:27:46,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 462 transitions. [2018-12-02 13:27:46,901 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 462 transitions. Word has length 117 [2018-12-02 13:27:46,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:46,901 INFO L480 AbstractCegarLoop]: Abstraction has 395 states and 462 transitions. [2018-12-02 13:27:46,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-12-02 13:27:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 462 transitions. [2018-12-02 13:27:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-12-02 13:27:46,902 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:46,902 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] [2018-12-02 13:27:46,902 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:46,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:46,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1993235866, now seen corresponding path program 1 times [2018-12-02 13:27:46,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:46,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:46,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:46,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:46,903 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 13:27:46,978 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:27:46,978 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 13:27:46,978 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-12-02 13:27:46,978 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [65], [66], [67], [68], [77], [81], [85], [88], [91], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [130], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [198], [202], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [232], [233], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-02 13:27:46,980 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 13:27:46,980 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 13:27:47,642 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 13:27:47,642 INFO L272 AbstractInterpreter]: Visited 93 different actions 488 times. Merged at 18 different actions 62 times. Never widened. Performed 19742 root evaluator evaluations with a maximum evaluation depth of 3. Performed 19742 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 12 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-02 13:27:47,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:47,644 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 13:27:47,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:27:47,645 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 13:27:47,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:47,655 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 13:27:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:27:47,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:27:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:27:47,832 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 13:27:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 13:27:47,982 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 13:27:47,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-02 13:27:47,982 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 13:27:47,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 13:27:47,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 13:27:47,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-02 13:27:47,983 INFO L87 Difference]: Start difference. First operand 395 states and 462 transitions. Second operand 15 states. [2018-12-02 13:27:48,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:27:48,659 INFO L93 Difference]: Finished difference Result 849 states and 1131 transitions. [2018-12-02 13:27:48,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-02 13:27:48,659 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 113 [2018-12-02 13:27:48,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:27:48,661 INFO L225 Difference]: With dead ends: 849 [2018-12-02 13:27:48,661 INFO L226 Difference]: Without dead ends: 600 [2018-12-02 13:27:48,662 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 218 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-02 13:27:48,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2018-12-02 13:27:48,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 497. [2018-12-02 13:27:48,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2018-12-02 13:27:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 593 transitions. [2018-12-02 13:27:48,680 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 593 transitions. Word has length 113 [2018-12-02 13:27:48,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:27:48,680 INFO L480 AbstractCegarLoop]: Abstraction has 497 states and 593 transitions. [2018-12-02 13:27:48,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 13:27:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 593 transitions. [2018-12-02 13:27:48,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-02 13:27:48,682 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:27:48,682 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:27:48,682 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:27:48,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:27:48,683 INFO L82 PathProgramCache]: Analyzing trace with hash -883595787, now seen corresponding path program 2 times [2018-12-02 13:27:48,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 13:27:48,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:48,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:27:48,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:27:48,684 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 13:27:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:27:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:27:48,780 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 13:27:48,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:27:48 BoogieIcfgContainer [2018-12-02 13:27:48,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 13:27:48,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:27:48,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:27:48,873 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:27:48,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:27:39" (3/4) ... [2018-12-02 13:27:48,874 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 13:27:48,961 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_78c7064d-3bdd-49ba-897e-b7ddaa3e8450/bin-2019/utaipan/witness.graphml [2018-12-02 13:27:48,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:27:48,962 INFO L168 Benchmark]: Toolchain (without parser) took 9921.29 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 543.2 MB). Free memory was 952.4 MB in the beginning and 989.9 MB in the end (delta: -37.5 MB). Peak memory consumption was 505.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:27:48,963 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-02 13:27:48,963 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-12-02 13:27:48,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:27:48,963 INFO L168 Benchmark]: Boogie Preprocessor took 21.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:27:48,963 INFO L168 Benchmark]: RCFGBuilder took 365.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. [2018-12-02 13:27:48,963 INFO L168 Benchmark]: TraceAbstraction took 9146.73 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 420.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.8 MB). Peak memory consumption was 427.8 MB. Max. memory is 11.5 GB. [2018-12-02 13:27:48,963 INFO L168 Benchmark]: Witness Printer took 89.02 ms. Allocated memory is still 1.6 GB. Free memory was 1.0 GB in the beginning and 989.9 MB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. [2018-12-02 13:27:48,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 365.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9146.73 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 420.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.8 MB). Peak memory consumption was 427.8 MB. Max. memory is 11.5 GB. * Witness Printer took 89.02 ms. Allocated memory is still 1.6 GB. Free memory was 1.0 GB in the beginning and 989.9 MB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L492] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L494] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L498] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L499] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L567] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L567] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L852] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L754] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L758] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L758] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L884] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L888] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L869] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 118 locations, 1 error locations. UNSAFE Result, 9.1s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 5.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1242 SDtfs, 1793 SDslu, 4600 SDs, 0 SdLazy, 3012 SolverSat, 683 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 666 GetRequests, 532 SyntacticMatches, 6 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=559occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9973996202645664 AbsIntWeakeningRatio, 0.9529411764705882 AbsIntAvgWeakeningVarsNumRemoved, 52.80294117647059 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 183 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 993 NumberOfCodeBlocks, 993 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 947 ConstructedInterpolants, 0 QuantifiedInterpolants, 149161 SizeOfPredicates, 8 NumberOfNonLiveVariables, 759 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 126/148 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...