./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/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 712263c6c933aaef268a48b623f3b4ee6fd9ad4b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:52:19,445 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:52:19,446 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:52:19,452 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:52:19,453 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:52:19,453 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:52:19,454 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:52:19,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:52:19,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:52:19,457 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:52:19,457 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:52:19,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:52:19,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:52:19,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:52:19,459 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:52:19,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:52:19,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:52:19,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:52:19,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:52:19,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:52:19,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:52:19,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:52:19,466 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:52:19,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:52:19,467 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:52:19,467 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:52:19,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:52:19,468 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:52:19,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:52:19,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:52:19,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:52:19,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:52:19,471 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:52:19,471 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:52:19,471 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:52:19,472 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:52:19,472 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:52:19,479 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:52:19,479 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:52:19,479 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:52:19,480 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:52:19,480 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:52:19,480 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:52:19,480 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:52:19,480 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:52:19,480 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:52:19,480 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:52:19,481 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:52:19,481 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:52:19,481 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:52:19,481 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:52:19,481 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:52:19,482 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:52:19,483 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:52:19,483 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:52:19,483 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:52:19,483 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:52:19,483 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:52:19,483 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:52:19,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:52:19,484 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:52:19,484 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:52:19,484 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:52:19,484 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:52:19,484 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:52:19,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:52:19,484 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:52:19,484 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_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/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 -> 712263c6c933aaef268a48b623f3b4ee6fd9ad4b [2018-11-18 17:52:19,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:52:19,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:52:19,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:52:19,523 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:52:19,523 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:52:19,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-11-18 17:52:19,569 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/data/cf3cdf9d2/c584ce45523347b6a478ca98fe7cecb6/FLAGfa6104487 [2018-11-18 17:52:19,901 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:52:19,901 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-11-18 17:52:19,911 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/data/cf3cdf9d2/c584ce45523347b6a478ca98fe7cecb6/FLAGfa6104487 [2018-11-18 17:52:20,307 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/data/cf3cdf9d2/c584ce45523347b6a478ca98fe7cecb6 [2018-11-18 17:52:20,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:52:20,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:52:20,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:52:20,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:52:20,315 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:52:20,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5587dbd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20, skipping insertion in model container [2018-11-18 17:52:20,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:52:20,355 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:52:20,536 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:52:20,544 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:52:20,647 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:52:20,667 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:52:20,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20 WrapperNode [2018-11-18 17:52:20,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:52:20,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:52:20,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:52:20,669 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:52:20,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:52:20,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:52:20,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:52:20,697 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:52:20,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... [2018-11-18 17:52:20,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:52:20,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:52:20,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:52:20,728 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:52:20,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/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 [2018-11-18 17:52:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 17:52:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 17:52:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:52:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:52:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:52:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:52:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 17:52:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 17:52:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:52:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 17:52:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 17:52:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 17:52:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 17:52:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 17:52:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 17:52:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 17:52:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 17:52:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 17:52:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 17:52:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 17:52:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 17:52:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 17:52:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 17:52:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 17:52:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 17:52:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 17:52:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 17:52:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 17:52:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 17:52:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 17:52:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 17:52:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 17:52:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 17:52:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:52:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:52:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 17:52:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 17:52:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 17:52:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 17:52:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 17:52:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 17:52:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 17:52:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 17:52:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 17:52:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 17:52:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 17:52:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 17:52:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:52:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:52:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 17:52:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 17:52:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 17:52:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 17:52:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:52:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:52:21,269 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:52:21,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:52:21 BoogieIcfgContainer [2018-11-18 17:52:21,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:52:21,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:52:21,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:52:21,272 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:52:21,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:52:20" (1/3) ... [2018-11-18 17:52:21,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fe74a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:52:21, skipping insertion in model container [2018-11-18 17:52:21,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:52:20" (2/3) ... [2018-11-18 17:52:21,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fe74a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:52:21, skipping insertion in model container [2018-11-18 17:52:21,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:52:21" (3/3) ... [2018-11-18 17:52:21,274 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-11-18 17:52:21,280 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:52:21,285 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:52:21,293 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:52:21,314 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:52:21,315 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:52:21,315 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:52:21,315 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:52:21,315 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:52:21,315 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:52:21,315 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:52:21,315 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:52:21,329 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-11-18 17:52:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 17:52:21,335 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:21,336 INFO L375 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] [2018-11-18 17:52:21,338 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:21,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:21,342 INFO L82 PathProgramCache]: Analyzing trace with hash -143549544, now seen corresponding path program 1 times [2018-11-18 17:52:21,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:21,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:21,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:21,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:21,372 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:52:21,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:52:21,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:52:21,529 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:21,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:52:21,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:52:21,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:52:21,542 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2018-11-18 17:52:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:21,564 INFO L93 Difference]: Finished difference Result 260 states and 321 transitions. [2018-11-18 17:52:21,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:52:21,565 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 17:52:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:21,572 INFO L225 Difference]: With dead ends: 260 [2018-11-18 17:52:21,572 INFO L226 Difference]: Without dead ends: 130 [2018-11-18 17:52:21,576 INFO L604 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 [2018-11-18 17:52:21,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-11-18 17:52:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-11-18 17:52:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-18 17:52:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2018-11-18 17:52:21,609 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 46 [2018-11-18 17:52:21,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:21,610 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2018-11-18 17:52:21,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:52:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2018-11-18 17:52:21,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 17:52:21,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:21,612 INFO L375 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] [2018-11-18 17:52:21,613 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:21,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:21,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1248359522, now seen corresponding path program 1 times [2018-11-18 17:52:21,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:21,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:21,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:21,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:21,615 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:52:21,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:52:21,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:52:21,720 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:21,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:52:21,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:52:21,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:52:21,721 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 3 states. [2018-11-18 17:52:21,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:21,740 INFO L93 Difference]: Finished difference Result 207 states and 241 transitions. [2018-11-18 17:52:21,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:52:21,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 17:52:21,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:21,742 INFO L225 Difference]: With dead ends: 207 [2018-11-18 17:52:21,742 INFO L226 Difference]: Without dead ends: 120 [2018-11-18 17:52:21,742 INFO L604 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 [2018-11-18 17:52:21,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-18 17:52:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-11-18 17:52:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-18 17:52:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2018-11-18 17:52:21,750 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 48 [2018-11-18 17:52:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:21,750 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2018-11-18 17:52:21,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:52:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2018-11-18 17:52:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 17:52:21,751 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:21,751 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:21,751 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:21,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:21,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1673307968, now seen corresponding path program 1 times [2018-11-18 17:52:21,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:21,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:21,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:21,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:21,753 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:52:21,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:52:21,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 17:52:21,850 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:21,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 17:52:21,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 17:52:21,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:52:21,851 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 7 states. [2018-11-18 17:52:22,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:22,078 INFO L93 Difference]: Finished difference Result 216 states and 255 transitions. [2018-11-18 17:52:22,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:52:22,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-18 17:52:22,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:22,079 INFO L225 Difference]: With dead ends: 216 [2018-11-18 17:52:22,080 INFO L226 Difference]: Without dead ends: 120 [2018-11-18 17:52:22,080 INFO L604 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 [2018-11-18 17:52:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-18 17:52:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-11-18 17:52:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-18 17:52:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions. [2018-11-18 17:52:22,089 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 52 [2018-11-18 17:52:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:22,089 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions. [2018-11-18 17:52:22,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 17:52:22,090 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions. [2018-11-18 17:52:22,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 17:52:22,091 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:22,091 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:22,091 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:22,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:22,091 INFO L82 PathProgramCache]: Analyzing trace with hash 895963550, now seen corresponding path program 1 times [2018-11-18 17:52:22,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:22,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:22,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:22,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:22,092 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:52:22,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:52:22,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:52:22,170 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:22,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:52:22,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:52:22,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:52:22,171 INFO L87 Difference]: Start difference. First operand 120 states and 138 transitions. Second operand 5 states. [2018-11-18 17:52:22,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:22,599 INFO L93 Difference]: Finished difference Result 312 states and 375 transitions. [2018-11-18 17:52:22,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:52:22,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-11-18 17:52:22,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:22,602 INFO L225 Difference]: With dead ends: 312 [2018-11-18 17:52:22,602 INFO L226 Difference]: Without dead ends: 216 [2018-11-18 17:52:22,603 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 17:52:22,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-11-18 17:52:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 197. [2018-11-18 17:52:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-11-18 17:52:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 224 transitions. [2018-11-18 17:52:22,624 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 224 transitions. Word has length 65 [2018-11-18 17:52:22,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:22,625 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 224 transitions. [2018-11-18 17:52:22,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:52:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 224 transitions. [2018-11-18 17:52:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-18 17:52:22,626 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:22,626 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:22,627 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:22,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:22,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1419927737, now seen corresponding path program 1 times [2018-11-18 17:52:22,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:22,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:22,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:22,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:22,629 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:52:22,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:52:22,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 17:52:22,779 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:22,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:52:22,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:52:22,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:52:22,780 INFO L87 Difference]: Start difference. First operand 197 states and 224 transitions. Second operand 10 states. [2018-11-18 17:52:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:23,185 INFO L93 Difference]: Finished difference Result 626 states and 780 transitions. [2018-11-18 17:52:23,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 17:52:23,185 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-11-18 17:52:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:23,188 INFO L225 Difference]: With dead ends: 626 [2018-11-18 17:52:23,189 INFO L226 Difference]: Without dead ends: 453 [2018-11-18 17:52:23,190 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:52:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2018-11-18 17:52:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2018-11-18 17:52:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-11-18 17:52:23,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 523 transitions. [2018-11-18 17:52:23,221 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 523 transitions. Word has length 79 [2018-11-18 17:52:23,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:23,221 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 523 transitions. [2018-11-18 17:52:23,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:52:23,222 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 523 transitions. [2018-11-18 17:52:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 17:52:23,224 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:23,225 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:23,225 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:23,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:23,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1879121281, now seen corresponding path program 1 times [2018-11-18 17:52:23,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:23,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:23,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:23,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:23,226 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:23,309 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:52:23,309 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:23,309 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:52:23,310 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-18 17:52:23,311 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [85], [91], [95], [99], [102], [107], [113], [115], [118], [133], [134], [135], [136], [137], [138], [139], [141], [144], [148], [149], [150], [151], [161], [164], [168], [174], [204], [208], [209], [213], [216], [218], [221], [231], [234], [238], [239], [242], [243], [244], [245], [246], [248], [249], [250], [251], [252], [253], [254], [255], [256], [258], [259], [260], [262], [263], [264], [265], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [290], [291], [292], [294], [295], [296], [297] [2018-11-18 17:52:23,342 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:52:23,342 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:52:23,693 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:52:23,694 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 1965 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1965 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 17:52:23,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:23,699 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:52:23,989 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 97.24% of their original sizes. [2018-11-18 17:52:23,989 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:52:24,038 INFO L415 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-11-18 17:52:24,039 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:52:24,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:52:24,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-18 17:52:24,039 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:24,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 17:52:24,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 17:52:24,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:52:24,040 INFO L87 Difference]: Start difference. First operand 443 states and 523 transitions. Second operand 11 states. [2018-11-18 17:52:25,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:25,698 INFO L93 Difference]: Finished difference Result 939 states and 1139 transitions. [2018-11-18 17:52:25,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 17:52:25,699 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 138 [2018-11-18 17:52:25,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:25,701 INFO L225 Difference]: With dead ends: 939 [2018-11-18 17:52:25,701 INFO L226 Difference]: Without dead ends: 618 [2018-11-18 17:52:25,702 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:52:25,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2018-11-18 17:52:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 601. [2018-11-18 17:52:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2018-11-18 17:52:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 709 transitions. [2018-11-18 17:52:25,728 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 709 transitions. Word has length 138 [2018-11-18 17:52:25,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:25,728 INFO L480 AbstractCegarLoop]: Abstraction has 601 states and 709 transitions. [2018-11-18 17:52:25,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 17:52:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 709 transitions. [2018-11-18 17:52:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-18 17:52:25,731 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:25,731 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:25,731 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:25,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:25,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1758214901, now seen corresponding path program 1 times [2018-11-18 17:52:25,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:25,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:25,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:25,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:25,732 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 17:52:25,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:25,805 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:52:25,805 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-11-18 17:52:25,805 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [85], [91], [95], [99], [105], [107], [113], [115], [118], [133], [134], [135], [136], [137], [138], [139], [141], [144], [148], [149], [150], [151], [161], [164], [168], [174], [204], [208], [209], [213], [216], [218], [221], [231], [239], [242], [243], [244], [245], [246], [248], [249], [250], [251], [252], [253], [254], [255], [256], [258], [259], [260], [262], [263], [264], [265], [268], [269], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [290], [291], [292], [294], [295], [296], [297] [2018-11-18 17:52:25,808 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:52:25,808 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:52:25,914 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:52:25,914 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Performed 1863 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1863 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 17:52:25,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:25,918 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:52:26,072 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 97.26% of their original sizes. [2018-11-18 17:52:26,072 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:52:26,149 INFO L415 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-11-18 17:52:26,150 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:52:26,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:52:26,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-18 17:52:26,151 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:26,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 17:52:26,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 17:52:26,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-11-18 17:52:26,151 INFO L87 Difference]: Start difference. First operand 601 states and 709 transitions. Second operand 16 states. [2018-11-18 17:52:28,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:28,022 INFO L93 Difference]: Finished difference Result 1082 states and 1283 transitions. [2018-11-18 17:52:28,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 17:52:28,022 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 130 [2018-11-18 17:52:28,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:28,025 INFO L225 Difference]: With dead ends: 1082 [2018-11-18 17:52:28,025 INFO L226 Difference]: Without dead ends: 505 [2018-11-18 17:52:28,026 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2018-11-18 17:52:28,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-11-18 17:52:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2018-11-18 17:52:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-11-18 17:52:28,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 589 transitions. [2018-11-18 17:52:28,049 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 589 transitions. Word has length 130 [2018-11-18 17:52:28,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:28,049 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 589 transitions. [2018-11-18 17:52:28,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 17:52:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 589 transitions. [2018-11-18 17:52:28,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-18 17:52:28,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:28,051 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:28,051 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:28,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:28,051 INFO L82 PathProgramCache]: Analyzing trace with hash -227985766, now seen corresponding path program 1 times [2018-11-18 17:52:28,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:28,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:28,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:28,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:28,052 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 17:52:28,134 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:28,134 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:52:28,134 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-11-18 17:52:28,135 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [78], [79], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [118], [133], [134], [135], [136], [137], [138], [139], [141], [144], [148], [149], [150], [151], [161], [164], [168], [174], [204], [208], [209], [213], [216], [218], [221], [231], [234], [238], [239], [242], [243], [244], [245], [246], [248], [249], [250], [251], [252], [253], [254], [255], [256], [258], [259], [260], [262], [263], [264], [265], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [290], [291], [292], [294], [295], [296], [297] [2018-11-18 17:52:28,137 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:52:28,137 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:52:28,481 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:52:28,481 INFO L272 AbstractInterpreter]: Visited 58 different actions 78 times. Merged at 5 different actions 5 times. Never widened. Performed 4532 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4532 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 17:52:28,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:28,483 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:52:28,619 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 97.24% of their original sizes. [2018-11-18 17:52:28,620 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:52:28,683 INFO L415 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-11-18 17:52:28,684 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:52:28,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:52:28,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-18 17:52:28,684 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:28,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 17:52:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 17:52:28,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-11-18 17:52:28,685 INFO L87 Difference]: Start difference. First operand 505 states and 589 transitions. Second operand 15 states. [2018-11-18 17:52:30,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:30,784 INFO L93 Difference]: Finished difference Result 953 states and 1145 transitions. [2018-11-18 17:52:30,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 17:52:30,784 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 134 [2018-11-18 17:52:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:30,786 INFO L225 Difference]: With dead ends: 953 [2018-11-18 17:52:30,786 INFO L226 Difference]: Without dead ends: 530 [2018-11-18 17:52:30,787 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:52:30,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-11-18 17:52:30,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 505. [2018-11-18 17:52:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-11-18 17:52:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 588 transitions. [2018-11-18 17:52:30,806 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 588 transitions. Word has length 134 [2018-11-18 17:52:30,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:30,806 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 588 transitions. [2018-11-18 17:52:30,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 17:52:30,806 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 588 transitions. [2018-11-18 17:52:30,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-18 17:52:30,807 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:30,808 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:30,808 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:30,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:30,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1370488232, now seen corresponding path program 1 times [2018-11-18 17:52:30,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:30,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:30,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:30,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:30,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 17:52:30,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:52:30,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:52:30,874 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:30,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:52:30,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:52:30,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:52:30,874 INFO L87 Difference]: Start difference. First operand 505 states and 588 transitions. Second operand 6 states. [2018-11-18 17:52:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:30,902 INFO L93 Difference]: Finished difference Result 836 states and 987 transitions. [2018-11-18 17:52:30,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:52:30,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-18 17:52:30,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:30,904 INFO L225 Difference]: With dead ends: 836 [2018-11-18 17:52:30,904 INFO L226 Difference]: Without dead ends: 515 [2018-11-18 17:52:30,905 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:52:30,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-11-18 17:52:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2018-11-18 17:52:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2018-11-18 17:52:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 598 transitions. [2018-11-18 17:52:30,920 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 598 transitions. Word has length 134 [2018-11-18 17:52:30,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:30,920 INFO L480 AbstractCegarLoop]: Abstraction has 515 states and 598 transitions. [2018-11-18 17:52:30,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:52:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 598 transitions. [2018-11-18 17:52:30,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-18 17:52:30,921 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:30,922 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:30,922 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:30,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:30,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1879961322, now seen corresponding path program 1 times [2018-11-18 17:52:30,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:30,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:30,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:30,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:30,923 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 17:52:30,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:52:30,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:52:30,984 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:30,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:52:30,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:52:30,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:52:30,985 INFO L87 Difference]: Start difference. First operand 515 states and 598 transitions. Second operand 6 states. [2018-11-18 17:52:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:31,092 INFO L93 Difference]: Finished difference Result 524 states and 607 transitions. [2018-11-18 17:52:31,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 17:52:31,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-18 17:52:31,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:31,094 INFO L225 Difference]: With dead ends: 524 [2018-11-18 17:52:31,094 INFO L226 Difference]: Without dead ends: 521 [2018-11-18 17:52:31,095 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:52:31,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2018-11-18 17:52:31,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 515. [2018-11-18 17:52:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2018-11-18 17:52:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 597 transitions. [2018-11-18 17:52:31,108 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 597 transitions. Word has length 134 [2018-11-18 17:52:31,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:31,109 INFO L480 AbstractCegarLoop]: Abstraction has 515 states and 597 transitions. [2018-11-18 17:52:31,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:52:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 597 transitions. [2018-11-18 17:52:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 17:52:31,110 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:31,110 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:31,110 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:31,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:31,111 INFO L82 PathProgramCache]: Analyzing trace with hash -551073457, now seen corresponding path program 1 times [2018-11-18 17:52:31,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:31,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:31,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:31,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:31,112 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 17:52:31,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:31,209 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:52:31,209 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-18 17:52:31,209 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [118], [133], [134], [135], [136], [137], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [204], [208], [209], [213], [216], [218], [221], [228], [231], [234], [238], [239], [242], [243], [244], [245], [246], [248], [249], [250], [251], [252], [253], [254], [255], [256], [258], [259], [260], [262], [263], [266], [267], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [290], [291], [292], [294], [295], [296], [297], [300], [301] [2018-11-18 17:52:31,211 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:52:31,212 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:52:31,960 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:52:31,961 INFO L272 AbstractInterpreter]: Visited 115 different actions 561 times. Merged at 19 different actions 59 times. Never widened. Performed 18290 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18290 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 17:52:31,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:31,965 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:52:31,965 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:31,966 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/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 [2018-11-18 17:52:31,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:31,972 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:52:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:32,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:52:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:52:32,164 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:52:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 17:52:32,390 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:52:32,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 17:52:32,390 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:52:32,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 17:52:32,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 17:52:32,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:52:32,391 INFO L87 Difference]: Start difference. First operand 515 states and 597 transitions. Second operand 14 states. [2018-11-18 17:52:34,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:34,027 INFO L93 Difference]: Finished difference Result 1223 states and 1599 transitions. [2018-11-18 17:52:34,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 17:52:34,028 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2018-11-18 17:52:34,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:34,030 INFO L225 Difference]: With dead ends: 1223 [2018-11-18 17:52:34,030 INFO L226 Difference]: Without dead ends: 892 [2018-11-18 17:52:34,031 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 271 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 17:52:34,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2018-11-18 17:52:34,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 785. [2018-11-18 17:52:34,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2018-11-18 17:52:34,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 926 transitions. [2018-11-18 17:52:34,061 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 926 transitions. Word has length 138 [2018-11-18 17:52:34,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:34,061 INFO L480 AbstractCegarLoop]: Abstraction has 785 states and 926 transitions. [2018-11-18 17:52:34,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 17:52:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 926 transitions. [2018-11-18 17:52:34,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-18 17:52:34,064 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:34,064 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:52:34,064 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:34,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:34,064 INFO L82 PathProgramCache]: Analyzing trace with hash -657386188, now seen corresponding path program 1 times [2018-11-18 17:52:34,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:34,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:34,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:34,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:34,065 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 17:52:34,163 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:34,163 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:52:34,163 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-18 17:52:34,164 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [118], [133], [134], [135], [136], [137], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [204], [208], [209], [213], [216], [218], [221], [228], [231], [234], [238], [239], [242], [243], [244], [245], [246], [248], [249], [250], [251], [252], [253], [254], [255], [256], [258], [259], [260], [262], [263], [266], [267], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [290], [291], [292], [294], [295], [296], [297], [300], [301] [2018-11-18 17:52:34,165 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:52:34,165 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:52:34,998 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:52:34,998 INFO L272 AbstractInterpreter]: Visited 116 different actions 573 times. Merged at 22 different actions 68 times. Never widened. Performed 18578 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18578 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-18 17:52:35,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:35,010 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:52:35,010 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:35,010 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:52:35,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:35,017 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:52:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:35,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:52:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-18 17:52:35,158 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:52:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 17:52:35,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:52:35,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 17:52:35,411 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:35,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:52:35,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:52:35,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:52:35,412 INFO L87 Difference]: Start difference. First operand 785 states and 926 transitions. Second operand 6 states. [2018-11-18 17:52:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:35,460 INFO L93 Difference]: Finished difference Result 1336 states and 1602 transitions. [2018-11-18 17:52:35,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:52:35,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-11-18 17:52:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:35,463 INFO L225 Difference]: With dead ends: 1336 [2018-11-18 17:52:35,463 INFO L226 Difference]: Without dead ends: 735 [2018-11-18 17:52:35,464 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 379 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:52:35,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2018-11-18 17:52:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2018-11-18 17:52:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2018-11-18 17:52:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 869 transitions. [2018-11-18 17:52:35,487 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 869 transitions. Word has length 192 [2018-11-18 17:52:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:35,487 INFO L480 AbstractCegarLoop]: Abstraction has 735 states and 869 transitions. [2018-11-18 17:52:35,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:52:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 869 transitions. [2018-11-18 17:52:35,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-11-18 17:52:35,490 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:35,490 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:52:35,490 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:35,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1253909515, now seen corresponding path program 1 times [2018-11-18 17:52:35,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:35,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:35,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:35,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:35,491 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-18 17:52:35,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:35,561 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:52:35,561 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-11-18 17:52:35,561 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [54], [55], [58], [60], [63], [66], [70], [73], [74], [77], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [118], [133], [134], [135], [136], [137], [138], [139], [141], [144], [146], [148], [149], [150], [151], [161], [164], [168], [174], [204], [208], [209], [213], [216], [218], [221], [228], [231], [234], [238], [239], [242], [243], [244], [245], [246], [248], [249], [250], [251], [252], [253], [254], [255], [256], [258], [259], [260], [262], [263], [264], [265], [266], [267], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [290], [291], [292], [294], [295], [296], [297], [300], [301] [2018-11-18 17:52:35,563 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:52:35,563 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:52:36,569 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:52:36,569 INFO L272 AbstractInterpreter]: Visited 123 different actions 772 times. Merged at 33 different actions 154 times. Never widened. Performed 27940 root evaluator evaluations with a maximum evaluation depth of 5. Performed 27940 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 22 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-18 17:52:36,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:36,570 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:52:36,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:36,570 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:52:36,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:36,577 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:52:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:36,661 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:52:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 17:52:36,713 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:52:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-18 17:52:36,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:52:36,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 17:52:36,934 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:36,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:52:36,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:52:36,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:52:36,934 INFO L87 Difference]: Start difference. First operand 735 states and 869 transitions. Second operand 6 states. [2018-11-18 17:52:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:36,964 INFO L93 Difference]: Finished difference Result 1306 states and 1584 transitions. [2018-11-18 17:52:36,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:52:36,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2018-11-18 17:52:36,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:36,967 INFO L225 Difference]: With dead ends: 1306 [2018-11-18 17:52:36,967 INFO L226 Difference]: Without dead ends: 755 [2018-11-18 17:52:36,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 475 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:52:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2018-11-18 17:52:36,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2018-11-18 17:52:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2018-11-18 17:52:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 891 transitions. [2018-11-18 17:52:36,991 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 891 transitions. Word has length 240 [2018-11-18 17:52:36,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:36,991 INFO L480 AbstractCegarLoop]: Abstraction has 755 states and 891 transitions. [2018-11-18 17:52:36,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:52:36,991 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 891 transitions. [2018-11-18 17:52:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-11-18 17:52:36,994 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:52:36,994 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:52:36,994 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:52:36,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:36,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1161926835, now seen corresponding path program 1 times [2018-11-18 17:52:36,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:52:36,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:36,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:36,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:52:36,996 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:52:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-11-18 17:52:37,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:37,078 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:52:37,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-11-18 17:52:37,079 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [54], [55], [58], [60], [63], [66], [70], [73], [74], [77], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [118], [133], [134], [135], [136], [137], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [204], [208], [209], [213], [216], [218], [221], [228], [231], [234], [238], [239], [242], [243], [244], [245], [246], [248], [249], [250], [251], [252], [253], [254], [255], [256], [258], [259], [260], [262], [263], [264], [265], [266], [267], [268], [269], [270], [271], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [290], [291], [292], [294], [295], [296], [297], [300], [301] [2018-11-18 17:52:37,080 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:52:37,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:52:38,049 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:52:38,049 INFO L272 AbstractInterpreter]: Visited 122 different actions 691 times. Merged at 27 different actions 111 times. Never widened. Performed 30553 root evaluator evaluations with a maximum evaluation depth of 5. Performed 30553 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 16 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-18 17:52:38,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:52:38,058 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:52:38,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:52:38,058 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:52:38,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:52:38,093 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:52:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:52:38,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:52:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-18 17:52:38,222 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:52:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-11-18 17:52:38,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:52:38,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 17:52:38,504 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:52:38,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:52:38,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:52:38,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:52:38,505 INFO L87 Difference]: Start difference. First operand 755 states and 891 transitions. Second operand 5 states. [2018-11-18 17:52:38,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:52:38,546 INFO L93 Difference]: Finished difference Result 950 states and 1127 transitions. [2018-11-18 17:52:38,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:52:38,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2018-11-18 17:52:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:52:38,548 INFO L225 Difference]: With dead ends: 950 [2018-11-18 17:52:38,548 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:52:38,549 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 477 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:52:38,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:52:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:52:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:52:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:52:38,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2018-11-18 17:52:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:52:38,550 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:52:38,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:52:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:52:38,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:52:38,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:52:38,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:38,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:52:39,407 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 28 [2018-11-18 17:52:39,766 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 546 552) the Hoare annotation is: true [2018-11-18 17:52:39,766 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 546 552) no Hoare annotation was computed. [2018-11-18 17:52:39,766 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 553 561) no Hoare annotation was computed. [2018-11-18 17:52:39,766 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 553 561) the Hoare annotation is: true [2018-11-18 17:52:39,766 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 553 561) no Hoare annotation was computed. [2018-11-18 17:52:39,766 INFO L421 ceAbstractionStarter]: At program point L577(line 577) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-11-18 17:52:39,766 INFO L425 ceAbstractionStarter]: For program point L575(lines 575 581) no Hoare annotation was computed. [2018-11-18 17:52:39,766 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 563 587) the Hoare annotation is: true [2018-11-18 17:52:39,766 INFO L421 ceAbstractionStarter]: At program point L573(line 573) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-11-18 17:52:39,766 INFO L425 ceAbstractionStarter]: For program point L573-1(line 573) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 563 587) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L428 ceAbstractionStarter]: At program point L569(line 569) the Hoare annotation is: true [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point L569-1(line 569) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 563 587) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 238 260) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,767 INFO L421 ceAbstractionStarter]: At program point L250(line 250) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,767 INFO L421 ceAbstractionStarter]: At program point L250-1(line 250) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 238 260) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point L248(lines 248 255) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point L248-1(lines 248 255) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L425 ceAbstractionStarter]: For program point L246(line 246) no Hoare annotation was computed. [2018-11-18 17:52:39,767 INFO L421 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,768 INFO L421 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,768 INFO L421 ceAbstractionStarter]: At program point L244-1(line 244) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 238 260) no Hoare annotation was computed. [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 379 387) no Hoare annotation was computed. [2018-11-18 17:52:39,768 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 379 387) the Hoare annotation is: true [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 379 387) no Hoare annotation was computed. [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point L450-1(line 450) no Hoare annotation was computed. [2018-11-18 17:52:39,768 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 443 461) the Hoare annotation is: true [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 443 461) no Hoare annotation was computed. [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point L452(lines 452 456) no Hoare annotation was computed. [2018-11-18 17:52:39,768 INFO L428 ceAbstractionStarter]: At program point L450(line 450) the Hoare annotation is: true [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point L452-2(lines 452 456) no Hoare annotation was computed. [2018-11-18 17:52:39,768 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 443 461) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 539 545) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 539 545) the Hoare annotation is: true [2018-11-18 17:52:39,769 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 225 234) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,769 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 225 234) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 225 234) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 360 367) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-11-18 17:52:39,769 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 360 367) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 360 367) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L421 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1))) [2018-11-18 17:52:39,769 INFO L425 ceAbstractionStarter]: For program point L346-1(lines 327 351) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 327 351) no Hoare annotation was computed. [2018-11-18 17:52:39,769 INFO L421 ceAbstractionStarter]: At program point L341(line 341) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 17:52:39,770 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 327 351) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 17:52:39,770 INFO L421 ceAbstractionStarter]: At program point L337(line 337) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (<= 1 processEnvironment_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or .cse1 (< ~waterLevel~0 2) .cse0) (or .cse1 .cse0 (not (= ~waterLevel~0 1))))) [2018-11-18 17:52:39,770 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 343) no Hoare annotation was computed. [2018-11-18 17:52:39,770 INFO L421 ceAbstractionStarter]: At program point L333(line 333) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) .cse1))) [2018-11-18 17:52:39,770 INFO L425 ceAbstractionStarter]: For program point L333-1(line 333) no Hoare annotation was computed. [2018-11-18 17:52:39,770 INFO L425 ceAbstractionStarter]: For program point L331(lines 331 348) no Hoare annotation was computed. [2018-11-18 17:52:39,770 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 146) no Hoare annotation was computed. [2018-11-18 17:52:39,770 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 136 149) no Hoare annotation was computed. [2018-11-18 17:52:39,770 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 136 149) the Hoare annotation is: true [2018-11-18 17:52:39,770 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 136 149) no Hoare annotation was computed. [2018-11-18 17:52:39,770 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 293 299) no Hoare annotation was computed. [2018-11-18 17:52:39,770 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 293 299) the Hoare annotation is: true [2018-11-18 17:52:39,770 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 463 526) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point L475(lines 475 479) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point L473-1(lines 473 518) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 463 526) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L421 ceAbstractionStarter]: At program point L519(lines 472 520) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 513) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L421 ceAbstractionStarter]: At program point L509-2(lines 503 514) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point L474(lines 473 518) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point L503(lines 503 514) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L421 ceAbstractionStarter]: At program point L495(line 495) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 499) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2018-11-18 17:52:39,771 INFO L421 ceAbstractionStarter]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:52:39,772 INFO L421 ceAbstractionStarter]: At program point L516(lines 473 518) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point L483(lines 483 489) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 463 526) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 150 158) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 150 158) the Hoare annotation is: true [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 150 158) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point activatePumpFINAL(lines 352 359) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 352 359) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 352 359) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point L433(lines 433 437) no Hoare annotation was computed. [2018-11-18 17:52:39,772 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 424 442) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L428 ceAbstractionStarter]: At program point L431(line 431) the Hoare annotation is: true [2018-11-18 17:52:39,773 INFO L425 ceAbstractionStarter]: For program point L433-2(lines 433 437) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L425 ceAbstractionStarter]: For program point L431-1(line 431) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 424 442) the Hoare annotation is: true [2018-11-18 17:52:39,773 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 424 442) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 127 135) the Hoare annotation is: true [2018-11-18 17:52:39,773 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 127 135) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 127 135) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L428 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2018-11-18 17:52:39,773 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2018-11-18 17:52:39,773 INFO L421 ceAbstractionStarter]: At program point L282(line 282) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (and (not (= |old(~pumpRunning~0)| 0)) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) (or (< |old(~waterLevel~0)| 2) .cse1))))) [2018-11-18 17:52:39,773 INFO L421 ceAbstractionStarter]: At program point L280(lines 280 286) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= ~systemActive~0 1))) (let ((.cse0 (and (<= 2 ~waterLevel~0) .cse2 .cse3)) (.cse1 (not .cse3))) (and (or (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (< |old(~waterLevel~0)| 1) .cse1 (and .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)))))) [2018-11-18 17:52:39,774 INFO L421 ceAbstractionStarter]: At program point L275(line 275) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1))) (or (or .cse1 .cse2) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-18 17:52:39,774 INFO L425 ceAbstractionStarter]: For program point L273(lines 272 291) no Hoare annotation was computed. [2018-11-18 17:52:39,774 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 269 292) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-11-18 17:52:39,774 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 269 292) no Hoare annotation was computed. [2018-11-18 17:52:39,774 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 269 292) no Hoare annotation was computed. [2018-11-18 17:52:39,774 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 162 191) no Hoare annotation was computed. [2018-11-18 17:52:39,774 INFO L425 ceAbstractionStarter]: For program point L176(lines 176 180) no Hoare annotation was computed. [2018-11-18 17:52:39,774 INFO L428 ceAbstractionStarter]: At program point L176-1(lines 176 180) the Hoare annotation is: true [2018-11-18 17:52:39,774 INFO L425 ceAbstractionStarter]: For program point L172-1(lines 172 186) no Hoare annotation was computed. [2018-11-18 17:52:39,774 INFO L428 ceAbstractionStarter]: At program point L172-3(lines 172 186) the Hoare annotation is: true [2018-11-18 17:52:39,774 INFO L428 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-11-18 17:52:39,774 INFO L425 ceAbstractionStarter]: For program point L168-1(line 168) no Hoare annotation was computed. [2018-11-18 17:52:39,774 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 162 191) the Hoare annotation is: true [2018-11-18 17:52:39,775 INFO L428 ceAbstractionStarter]: At program point L187(lines 162 191) the Hoare annotation is: true [2018-11-18 17:52:39,775 INFO L425 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2018-11-18 17:52:39,775 INFO L425 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2018-11-18 17:52:39,775 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 59 70) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-18 17:52:39,775 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 59 70) no Hoare annotation was computed. [2018-11-18 17:52:39,775 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 59 70) no Hoare annotation was computed. [2018-11-18 17:52:39,775 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 217 223) no Hoare annotation was computed. [2018-11-18 17:52:39,775 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 217 223) the Hoare annotation is: true [2018-11-18 17:52:39,775 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:52:39,775 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 17:52:39,775 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:52:39,775 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:52:39,775 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 301 325) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:52:39,775 INFO L421 ceAbstractionStarter]: At program point L320(line 320) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point L320-1(lines 301 325) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 301 325) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L421 ceAbstractionStarter]: At program point L315(line 315) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 (< ~waterLevel~0 2) .cse1) .cse2) (or .cse0 .cse2 .cse1 (not (= ~waterLevel~0 1))))) [2018-11-18 17:52:39,776 INFO L421 ceAbstractionStarter]: At program point L311(line 311) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (or .cse0 (< ~waterLevel~0 2) .cse1)) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point L309(lines 309 317) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L421 ceAbstractionStarter]: At program point L307(line 307) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point L307-1(line 307) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 322) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)))) [2018-11-18 17:52:39,776 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-11-18 17:52:39,776 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-11-18 17:52:39,777 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-11-18 17:52:39,777 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-11-18 17:52:39,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:52:39 BoogieIcfgContainer [2018-11-18 17:52:39,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:52:39,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:52:39,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:52:39,787 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:52:39,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:52:21" (3/4) ... [2018-11-18 17:52:39,790 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:52:39,795 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 17:52:39,795 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 17:52:39,795 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:52:39,795 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:52:39,795 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 17:52:39,795 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 17:52:39,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 17:52:39,797 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 17:52:39,797 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 17:52:39,797 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 17:52:39,797 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:52:39,797 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 17:52:39,797 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 17:52:39,803 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 17:52:39,803 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 17:52:39,803 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 17:52:39,824 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) [2018-11-18 17:52:39,824 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) [2018-11-18 17:52:39,856 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e24c52ca-aa3d-445c-8e7b-8a1a7d43da7e/bin-2019/utaipan/witness.graphml [2018-11-18 17:52:39,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:52:39,857 INFO L168 Benchmark]: Toolchain (without parser) took 19547.34 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 956.6 MB in the beginning and 1.6 GB in the end (delta: -652.1 MB). Peak memory consumption was 859.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:52:39,858 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:52:39,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:52:39,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:52:39,858 INFO L168 Benchmark]: Boogie Preprocessor took 31.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:52:39,859 INFO L168 Benchmark]: RCFGBuilder took 542.18 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:52:39,859 INFO L168 Benchmark]: TraceAbstraction took 18515.86 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -547.3 MB). Peak memory consumption was 834.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:52:39,859 INFO L168 Benchmark]: Witness Printer took 69.68 ms. Allocated memory is still 2.5 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-18 17:52:39,861 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 542.18 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18515.86 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -547.3 MB). Peak memory consumption was 834.2 MB. Max. memory is 11.5 GB. * Witness Printer took 69.68 ms. Allocated memory is still 2.5 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: (((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 143 locations, 1 error locations. SAFE Result, 18.4s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2201 SDtfs, 1843 SDslu, 7769 SDs, 0 SdLazy, 3175 SolverSat, 700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2162 GetRequests, 1991 SyntacticMatches, 20 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=785occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.4s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.9981418771704963 AbsIntWeakeningRatio, 0.9172932330827067 AbsIntAvgWeakeningVarsNumRemoved, 49.363408521303256 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 184 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 1828 PreInvPairs, 1884 NumberOfFragments, 914 HoareAnnotationTreeSize, 1828 FomulaSimplifications, 3351 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 58 FomulaSimplificationsInter, 5345 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2580 NumberOfCodeBlocks, 2580 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3368 ConstructedInterpolants, 0 QuantifiedInterpolants, 713386 SizeOfPredicates, 16 NumberOfNonLiveVariables, 3517 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 1753/1812 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...