./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/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_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/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 0.1.23-635dfa2 [2018-12-09 19:19:12,534 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:19:12,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:19:12,543 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:19:12,544 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:19:12,544 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:19:12,545 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:19:12,546 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:19:12,547 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:19:12,548 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:19:12,548 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:19:12,548 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:19:12,549 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:19:12,549 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:19:12,550 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:19:12,551 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:19:12,551 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:19:12,552 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:19:12,554 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:19:12,555 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:19:12,556 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:19:12,556 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:19:12,558 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:19:12,558 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:19:12,558 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:19:12,559 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:19:12,560 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:19:12,560 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:19:12,561 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:19:12,561 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:19:12,562 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:19:12,562 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:19:12,562 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:19:12,562 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:19:12,563 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:19:12,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:19:12,563 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:19:12,574 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:19:12,574 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:19:12,574 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:19:12,575 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:19:12,575 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:19:12,575 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:19:12,575 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:19:12,575 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:19:12,575 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:19:12,576 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:19:12,576 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:19:12,576 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:19:12,576 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:19:12,576 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:19:12,576 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:19:12,577 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:19:12,577 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:19:12,577 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:19:12,577 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:19:12,577 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:19:12,577 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:19:12,577 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:19:12,578 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:19:12,578 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:19:12,578 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:19:12,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:19:12,579 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:19:12,579 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_c1de8d47-430b-4df2-b8fb-e054957a75e8/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 [2018-12-09 19:19:12,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:19:12,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:19:12,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:19:12,614 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:19:12,614 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:19:12,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-12-09 19:19:12,654 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/data/4d1351d07/ab1f039088a74a7fa3b88f5863fe03cb/FLAG5832b2171 [2018-12-09 19:19:13,089 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:19:13,089 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-12-09 19:19:13,095 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/data/4d1351d07/ab1f039088a74a7fa3b88f5863fe03cb/FLAG5832b2171 [2018-12-09 19:19:13,102 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/data/4d1351d07/ab1f039088a74a7fa3b88f5863fe03cb [2018-12-09 19:19:13,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:19:13,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:19:13,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:19:13,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:19:13,107 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:19:13,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13, skipping insertion in model container [2018-12-09 19:19:13,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:19:13,134 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:19:13,289 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:19:13,333 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:19:13,390 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:19:13,411 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:19:13,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13 WrapperNode [2018-12-09 19:19:13,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:19:13,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:19:13,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:19:13,412 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:19:13,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:19:13,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:19:13,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:19:13,438 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:19:13,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... [2018-12-09 19:19:13,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:19:13,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:19:13,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:19:13,465 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:19:13,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:19:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 19:19:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 19:19:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:19:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 19:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 19:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 19:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 19:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 19:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 19:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 19:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 19:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 19:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 19:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 19:19:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 19:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 19:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 19:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 19:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 19:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 19:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 19:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:19:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:19:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 19:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 19:19:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 19:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 19:19:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:19:13,782 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:19:13,782 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 19:19:13,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:13 BoogieIcfgContainer [2018-12-09 19:19:13,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:19:13,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:19:13,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:19:13,785 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:19:13,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:19:13" (1/3) ... [2018-12-09 19:19:13,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b44d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:13, skipping insertion in model container [2018-12-09 19:19:13,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:13" (2/3) ... [2018-12-09 19:19:13,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b44d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:13, skipping insertion in model container [2018-12-09 19:19:13,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:13" (3/3) ... [2018-12-09 19:19:13,787 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-12-09 19:19:13,793 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:19:13,798 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:19:13,807 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:19:13,826 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:19:13,826 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:19:13,827 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:19:13,827 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:19:13,827 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:19:13,827 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:19:13,827 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:19:13,827 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:19:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2018-12-09 19:19:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 19:19:13,843 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:13,844 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:13,845 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:13,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:13,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1018444604, now seen corresponding path program 1 times [2018-12-09 19:19:13,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:13,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:13,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:13,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:13,879 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:19:13,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:13,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:19:13,989 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:13,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:19:14,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:19:14,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:19:14,001 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 2 states. [2018-12-09 19:19:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:14,024 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2018-12-09 19:19:14,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:19:14,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 19:19:14,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:14,032 INFO L225 Difference]: With dead ends: 256 [2018-12-09 19:19:14,032 INFO L226 Difference]: Without dead ends: 128 [2018-12-09 19:19:14,034 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:19:14,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-12-09 19:19:14,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-12-09 19:19:14,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-12-09 19:19:14,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2018-12-09 19:19:14,064 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2018-12-09 19:19:14,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:14,064 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2018-12-09 19:19:14,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:19:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2018-12-09 19:19:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 19:19:14,066 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:14,066 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:14,066 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:14,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:14,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1966963140, now seen corresponding path program 1 times [2018-12-09 19:19:14,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:14,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:14,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,067 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:19:14,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:14,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:19:14,121 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:14,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:19:14,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:19:14,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:19:14,123 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2018-12-09 19:19:14,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:14,135 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2018-12-09 19:19:14,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:19:14,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 19:19:14,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:14,136 INFO L225 Difference]: With dead ends: 205 [2018-12-09 19:19:14,136 INFO L226 Difference]: Without dead ends: 119 [2018-12-09 19:19:14,137 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:19:14,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-12-09 19:19:14,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-12-09 19:19:14,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-12-09 19:19:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2018-12-09 19:19:14,144 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2018-12-09 19:19:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:14,144 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2018-12-09 19:19:14,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:19:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2018-12-09 19:19:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 19:19:14,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:14,145 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:14,145 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:14,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:14,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1731407841, now seen corresponding path program 1 times [2018-12-09 19:19:14,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:14,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:14,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:14,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:19:14,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:14,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:19:14,217 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:14,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:19:14,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:19:14,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:19:14,218 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 7 states. [2018-12-09 19:19:14,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:14,365 INFO L93 Difference]: Finished difference Result 214 states and 253 transitions. [2018-12-09 19:19:14,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:19:14,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 19:19:14,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:14,367 INFO L225 Difference]: With dead ends: 214 [2018-12-09 19:19:14,367 INFO L226 Difference]: Without dead ends: 119 [2018-12-09 19:19:14,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:19:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-12-09 19:19:14,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-12-09 19:19:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-12-09 19:19:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2018-12-09 19:19:14,379 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2018-12-09 19:19:14,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:14,379 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2018-12-09 19:19:14,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:19:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2018-12-09 19:19:14,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 19:19:14,381 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:14,381 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:14,381 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:14,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:14,382 INFO L82 PathProgramCache]: Analyzing trace with hash -131190691, now seen corresponding path program 1 times [2018-12-09 19:19:14,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:14,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:14,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,383 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:19:14,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:14,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:19:14,434 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:14,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:19:14,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:19:14,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:19:14,435 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 5 states. [2018-12-09 19:19:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:14,691 INFO L93 Difference]: Finished difference Result 308 states and 371 transitions. [2018-12-09 19:19:14,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:19:14,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-09 19:19:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:14,693 INFO L225 Difference]: With dead ends: 308 [2018-12-09 19:19:14,693 INFO L226 Difference]: Without dead ends: 213 [2018-12-09 19:19:14,693 INFO L631 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 [2018-12-09 19:19:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-12-09 19:19:14,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 195. [2018-12-09 19:19:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-12-09 19:19:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2018-12-09 19:19:14,708 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2018-12-09 19:19:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:14,708 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2018-12-09 19:19:14,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:19:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2018-12-09 19:19:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 19:19:14,710 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:14,710 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:14,710 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:14,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:14,710 INFO L82 PathProgramCache]: Analyzing trace with hash 660572567, now seen corresponding path program 1 times [2018-12-09 19:19:14,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:14,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:14,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,711 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:19:14,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:14,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 19:19:14,780 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:14,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:19:14,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:19:14,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:19:14,781 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 8 states. [2018-12-09 19:19:14,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:14,809 INFO L93 Difference]: Finished difference Result 373 states and 437 transitions. [2018-12-09 19:19:14,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:19:14,810 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2018-12-09 19:19:14,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:14,812 INFO L225 Difference]: With dead ends: 373 [2018-12-09 19:19:14,813 INFO L226 Difference]: Without dead ends: 202 [2018-12-09 19:19:14,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:19:14,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-12-09 19:19:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2018-12-09 19:19:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-12-09 19:19:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 226 transitions. [2018-12-09 19:19:14,830 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 226 transitions. Word has length 78 [2018-12-09 19:19:14,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:14,831 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 226 transitions. [2018-12-09 19:19:14,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:19:14,831 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 226 transitions. [2018-12-09 19:19:14,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 19:19:14,833 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:14,833 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:14,833 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:14,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:14,833 INFO L82 PathProgramCache]: Analyzing trace with hash -725630827, now seen corresponding path program 1 times [2018-12-09 19:19:14,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:14,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:14,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:14,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:19:14,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:14,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:19:14,942 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:14,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:19:14,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:19:14,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:19:14,943 INFO L87 Difference]: Start difference. First operand 199 states and 226 transitions. Second operand 10 states. [2018-12-09 19:19:15,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:15,262 INFO L93 Difference]: Finished difference Result 626 states and 778 transitions. [2018-12-09 19:19:15,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 19:19:15,262 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-12-09 19:19:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:15,264 INFO L225 Difference]: With dead ends: 626 [2018-12-09 19:19:15,264 INFO L226 Difference]: Without dead ends: 451 [2018-12-09 19:19:15,265 INFO L631 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 [2018-12-09 19:19:15,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-12-09 19:19:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 441. [2018-12-09 19:19:15,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2018-12-09 19:19:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 519 transitions. [2018-12-09 19:19:15,283 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 519 transitions. Word has length 78 [2018-12-09 19:19:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:15,283 INFO L480 AbstractCegarLoop]: Abstraction has 441 states and 519 transitions. [2018-12-09 19:19:15,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:19:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 519 transitions. [2018-12-09 19:19:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 19:19:15,285 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:15,285 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:15,286 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:15,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:15,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1354511015, now seen corresponding path program 1 times [2018-12-09 19:19:15,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:15,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:15,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:15,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:15,287 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 19:19:15,338 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:19:15,338 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:19:15,339 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-09 19:19:15,340 INFO L205 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], [90], [94], [98], [101], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [143], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [229], [232], [236], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [262], [263], [266], [267], [268], [269], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295] [2018-12-09 19:19:15,365 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:19:15,366 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:19:15,581 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:19:15,582 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 2049 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2049 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 19:19:15,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:15,587 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:19:15,740 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 97.26% of their original sizes. [2018-12-09 19:19:15,740 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:19:15,806 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-09 19:19:15,807 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:19:15,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:19:15,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-09 19:19:15,807 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:15,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:19:15,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:19:15,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:19:15,808 INFO L87 Difference]: Start difference. First operand 441 states and 519 transitions. Second operand 11 states. [2018-12-09 19:19:16,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:16,896 INFO L93 Difference]: Finished difference Result 933 states and 1129 transitions. [2018-12-09 19:19:16,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:19:16,896 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2018-12-09 19:19:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:16,899 INFO L225 Difference]: With dead ends: 933 [2018-12-09 19:19:16,899 INFO L226 Difference]: Without dead ends: 612 [2018-12-09 19:19:16,900 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:19:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-12-09 19:19:16,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 596. [2018-12-09 19:19:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2018-12-09 19:19:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 701 transitions. [2018-12-09 19:19:16,924 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 701 transitions. Word has length 136 [2018-12-09 19:19:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:16,924 INFO L480 AbstractCegarLoop]: Abstraction has 596 states and 701 transitions. [2018-12-09 19:19:16,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:19:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 701 transitions. [2018-12-09 19:19:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 19:19:16,926 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:16,927 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:16,927 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:16,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:16,927 INFO L82 PathProgramCache]: Analyzing trace with hash 2114967783, now seen corresponding path program 1 times [2018-12-09 19:19:16,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:16,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:16,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:16,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:16,928 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 19:19:16,985 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:19:16,985 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:19:16,985 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 19:19:16,986 INFO L205 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], [90], [94], [98], [104], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [143], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [229], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [262], [263], [266], [267], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295] [2018-12-09 19:19:16,988 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:19:16,989 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:19:17,607 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:19:17,607 INFO L272 AbstractInterpreter]: Visited 107 different actions 373 times. Merged at 16 different actions 33 times. Never widened. Performed 15040 root evaluator evaluations with a maximum evaluation depth of 5. Performed 15040 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-09 19:19:17,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:17,610 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:19:17,611 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:19:17,611 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:19:17,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:17,617 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:19:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:17,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:19:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 19:19:17,736 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:19:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 19:19:17,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:19:17,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 19:19:17,895 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:17,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:19:17,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:19:17,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:19:17,896 INFO L87 Difference]: Start difference. First operand 596 states and 701 transitions. Second operand 6 states. [2018-12-09 19:19:17,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:17,938 INFO L93 Difference]: Finished difference Result 1001 states and 1199 transitions. [2018-12-09 19:19:17,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:19:17,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-12-09 19:19:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:17,940 INFO L225 Difference]: With dead ends: 1001 [2018-12-09 19:19:17,940 INFO L226 Difference]: Without dead ends: 486 [2018-12-09 19:19:17,942 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 251 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:19:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2018-12-09 19:19:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2018-12-09 19:19:17,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2018-12-09 19:19:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 566 transitions. [2018-12-09 19:19:17,964 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 566 transitions. Word has length 128 [2018-12-09 19:19:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:17,965 INFO L480 AbstractCegarLoop]: Abstraction has 486 states and 566 transitions. [2018-12-09 19:19:17,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:19:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 566 transitions. [2018-12-09 19:19:17,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 19:19:17,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:17,966 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:17,967 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:17,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:17,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1834426404, now seen corresponding path program 1 times [2018-12-09 19:19:17,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:17,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:17,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:17,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:17,968 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 19:19:18,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:18,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:19:18,019 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:18,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:19:18,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:19:18,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:19:18,020 INFO L87 Difference]: Start difference. First operand 486 states and 566 transitions. Second operand 6 states. [2018-12-09 19:19:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:18,060 INFO L93 Difference]: Finished difference Result 796 states and 940 transitions. [2018-12-09 19:19:18,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:19:18,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-12-09 19:19:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:18,062 INFO L225 Difference]: With dead ends: 796 [2018-12-09 19:19:18,062 INFO L226 Difference]: Without dead ends: 496 [2018-12-09 19:19:18,063 INFO L631 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 [2018-12-09 19:19:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2018-12-09 19:19:18,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2018-12-09 19:19:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2018-12-09 19:19:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 576 transitions. [2018-12-09 19:19:18,077 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 576 transitions. Word has length 132 [2018-12-09 19:19:18,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:18,077 INFO L480 AbstractCegarLoop]: Abstraction has 496 states and 576 transitions. [2018-12-09 19:19:18,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:19:18,077 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 576 transitions. [2018-12-09 19:19:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 19:19:18,078 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:18,078 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:18,079 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:18,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:18,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1324953314, now seen corresponding path program 1 times [2018-12-09 19:19:18,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:18,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:18,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:18,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:18,080 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 19:19:18,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:19:18,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:19:18,117 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:18,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:19:18,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:19:18,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:19:18,117 INFO L87 Difference]: Start difference. First operand 496 states and 576 transitions. Second operand 6 states. [2018-12-09 19:19:18,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:18,210 INFO L93 Difference]: Finished difference Result 503 states and 583 transitions. [2018-12-09 19:19:18,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:19:18,210 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-12-09 19:19:18,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:18,211 INFO L225 Difference]: With dead ends: 503 [2018-12-09 19:19:18,211 INFO L226 Difference]: Without dead ends: 500 [2018-12-09 19:19:18,212 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:19:18,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2018-12-09 19:19:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 496. [2018-12-09 19:19:18,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2018-12-09 19:19:18,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 575 transitions. [2018-12-09 19:19:18,224 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 575 transitions. Word has length 132 [2018-12-09 19:19:18,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:18,225 INFO L480 AbstractCegarLoop]: Abstraction has 496 states and 575 transitions. [2018-12-09 19:19:18,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:19:18,225 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 575 transitions. [2018-12-09 19:19:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 19:19:18,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:18,226 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:19:18,226 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:18,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:18,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1565711897, now seen corresponding path program 1 times [2018-12-09 19:19:18,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:18,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:18,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:18,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:18,227 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 19:19:18,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:19:18,341 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:19:18,341 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-09 19:19:18,341 INFO L205 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], [90], [94], [98], [101], [104], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [145], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [226], [229], [232], [236], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [264], [265], [266], [267], [268], [269], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295], [298], [299] [2018-12-09 19:19:18,344 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:19:18,344 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:19:19,050 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:19:19,051 INFO L272 AbstractInterpreter]: Visited 114 different actions 585 times. Merged at 18 different actions 62 times. Never widened. Performed 21298 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21298 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 11 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-09 19:19:19,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:19,052 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:19:19,052 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:19:19,052 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:19:19,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:19,059 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:19:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:19,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:19:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:19:19,176 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:19:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 19:19:19,365 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 19:19:19,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-09 19:19:19,365 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 19:19:19,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 19:19:19,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 19:19:19,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-09 19:19:19,366 INFO L87 Difference]: Start difference. First operand 496 states and 575 transitions. Second operand 14 states. [2018-12-09 19:19:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:20,449 INFO L93 Difference]: Finished difference Result 1125 states and 1469 transitions. [2018-12-09 19:19:20,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-09 19:19:20,449 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2018-12-09 19:19:20,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:20,452 INFO L225 Difference]: With dead ends: 1125 [2018-12-09 19:19:20,452 INFO L226 Difference]: Without dead ends: 815 [2018-12-09 19:19:20,453 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 267 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-12-09 19:19:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2018-12-09 19:19:20,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 712. [2018-12-09 19:19:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2018-12-09 19:19:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 843 transitions. [2018-12-09 19:19:20,476 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 843 transitions. Word has length 136 [2018-12-09 19:19:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:20,477 INFO L480 AbstractCegarLoop]: Abstraction has 712 states and 843 transitions. [2018-12-09 19:19:20,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 19:19:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 843 transitions. [2018-12-09 19:19:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-12-09 19:19:20,478 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:19:20,478 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 19:19:20,478 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:19:20,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:20,478 INFO L82 PathProgramCache]: Analyzing trace with hash -2137984310, now seen corresponding path program 1 times [2018-12-09 19:19:20,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:19:20,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:20,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:20,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:19:20,479 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:19:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-09 19:19:20,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:19:20,537 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:19:20,537 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-12-09 19:19:20,537 INFO L205 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], [90], [94], [98], [101], [104], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [145], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [226], [229], [232], [236], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [264], [265], [266], [267], [268], [269], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295], [298], [299] [2018-12-09 19:19:20,539 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:19:20,539 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:19:21,493 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:19:21,493 INFO L272 AbstractInterpreter]: Visited 115 different actions 740 times. Merged at 21 different actions 86 times. Never widened. Performed 25521 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25521 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 17 fixpoints after 6 different actions. Largest state had 132 variables. [2018-12-09 19:19:21,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:19:21,497 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:19:21,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:19:21,497 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:19:21,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:19:21,503 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:19:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:19:21,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:19:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-09 19:19:21,618 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:19:21,763 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-09 19:19:21,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:19:21,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-09 19:19:21,779 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:19:21,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:19:21,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:19:21,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-09 19:19:21,780 INFO L87 Difference]: Start difference. First operand 712 states and 843 transitions. Second operand 6 states. [2018-12-09 19:19:21,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:19:21,809 INFO L93 Difference]: Finished difference Result 904 states and 1071 transitions. [2018-12-09 19:19:21,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:19:21,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-12-09 19:19:21,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:19:21,811 INFO L225 Difference]: With dead ends: 904 [2018-12-09 19:19:21,811 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:19:21,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 373 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-09 19:19:21,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:19:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:19:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:19:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:19:21,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2018-12-09 19:19:21,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:19:21,814 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:19:21,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:19:21,814 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:19:21,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:19:21,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:19:21,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:21,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:19:22,822 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 546 552) the Hoare annotation is: true [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 546 552) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 553 561) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 553 561) the Hoare annotation is: true [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 553 561) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L444 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))))) [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point L575(lines 575 581) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 563 587) the Hoare annotation is: true [2018-12-09 19:19:22,823 INFO L444 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))))) [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point L573-1(line 573) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 563 587) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L451 ceAbstractionStarter]: At program point L569(line 569) the Hoare annotation is: true [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point L569-1(line 569) no Hoare annotation was computed. [2018-12-09 19:19:22,823 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 563 587) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L444 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))) [2018-12-09 19:19:22,824 INFO L444 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))) [2018-12-09 19:19:22,824 INFO L444 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))) [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 238 260) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 255) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point L248-1(lines 248 255) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point L246(line 246) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L444 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))) [2018-12-09 19:19:22,824 INFO L444 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))) [2018-12-09 19:19:22,824 INFO L444 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))) [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 238 260) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 379 387) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 379 387) the Hoare annotation is: true [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 379 387) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point L450-1(line 450) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 443 461) the Hoare annotation is: true [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 443 461) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point L452(lines 452 456) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L451 ceAbstractionStarter]: At program point L450(line 450) the Hoare annotation is: true [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point L452-2(lines 452 456) no Hoare annotation was computed. [2018-12-09 19:19:22,824 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 443 461) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 539 545) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 539 545) the Hoare annotation is: true [2018-12-09 19:19:22,825 INFO L444 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))) [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 225 234) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 225 234) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L444 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))) [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 360 367) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 360 367) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L444 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))) [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point L346-1(lines 327 351) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 327 351) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L444 ceAbstractionStarter]: At program point L341(line 341) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 19:19:22,825 INFO L444 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))) [2018-12-09 19:19:22,825 INFO L444 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))))) [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 343) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L444 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))) [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point L333-1(line 333) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 348) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 146) no Hoare annotation was computed. [2018-12-09 19:19:22,825 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 136 149) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 136 149) the Hoare annotation is: true [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 136 149) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 293 299) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 293 299) the Hoare annotation is: true [2018-12-09 19:19:22,826 INFO L444 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))) [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point L475(lines 475 479) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 463 526) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L444 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))) [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 513) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L444 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)))) [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point L474(lines 473 518) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point L503(lines 503 514) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L444 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)))) [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 499) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L444 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)))) [2018-12-09 19:19:22,826 INFO L444 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)))) [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point L483(lines 483 489) no Hoare annotation was computed. [2018-12-09 19:19:22,826 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 463 526) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 150 158) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 150 158) the Hoare annotation is: true [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 150 158) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 352 359) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 352 359) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L444 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))) [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point L433(lines 433 437) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 424 442) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L451 ceAbstractionStarter]: At program point L431(line 431) the Hoare annotation is: true [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point L433-2(lines 433 437) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point L431-1(line 431) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 424 442) the Hoare annotation is: true [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 424 442) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 127 135) the Hoare annotation is: true [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 127 135) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 127 135) no Hoare annotation was computed. [2018-12-09 19:19:22,827 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2018-12-09 19:19:22,827 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2018-12-09 19:19:22,828 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2018-12-09 19:19:22,828 INFO L444 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))))) [2018-12-09 19:19:22,828 INFO L444 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)))))) [2018-12-09 19:19:22,828 INFO L444 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))))) [2018-12-09 19:19:22,828 INFO L448 ceAbstractionStarter]: For program point L273(lines 272 291) no Hoare annotation was computed. [2018-12-09 19:19:22,828 INFO L444 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))))) [2018-12-09 19:19:22,828 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 269 292) no Hoare annotation was computed. [2018-12-09 19:19:22,828 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 269 292) no Hoare annotation was computed. [2018-12-09 19:19:22,828 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 162 191) no Hoare annotation was computed. [2018-12-09 19:19:22,828 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 162 191) the Hoare annotation is: true [2018-12-09 19:19:22,828 INFO L451 ceAbstractionStarter]: At program point L187(lines 162 191) the Hoare annotation is: true [2018-12-09 19:19:22,828 INFO L448 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2018-12-09 19:19:22,828 INFO L448 ceAbstractionStarter]: For program point L176(lines 176 180) no Hoare annotation was computed. [2018-12-09 19:19:22,829 INFO L451 ceAbstractionStarter]: At program point L176-1(lines 176 180) the Hoare annotation is: true [2018-12-09 19:19:22,829 INFO L448 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2018-12-09 19:19:22,829 INFO L451 ceAbstractionStarter]: At program point L172-2(lines 172 186) the Hoare annotation is: true [2018-12-09 19:19:22,829 INFO L451 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-12-09 19:19:22,829 INFO L448 ceAbstractionStarter]: For program point L168-1(line 168) no Hoare annotation was computed. [2018-12-09 19:19:22,829 INFO L444 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)|)) [2018-12-09 19:19:22,829 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 59 70) no Hoare annotation was computed. [2018-12-09 19:19:22,829 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 59 70) no Hoare annotation was computed. [2018-12-09 19:19:22,829 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 217 223) no Hoare annotation was computed. [2018-12-09 19:19:22,829 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 217 223) the Hoare annotation is: true [2018-12-09 19:19:22,829 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:19:22,829 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-09 19:19:22,829 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:19:22,830 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:19:22,830 INFO L444 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)) [2018-12-09 19:19:22,830 INFO L444 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))))) [2018-12-09 19:19:22,830 INFO L448 ceAbstractionStarter]: For program point L320-1(lines 301 325) no Hoare annotation was computed. [2018-12-09 19:19:22,830 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 301 325) no Hoare annotation was computed. [2018-12-09 19:19:22,830 INFO L444 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))))) [2018-12-09 19:19:22,830 INFO L444 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))))) [2018-12-09 19:19:22,830 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 317) no Hoare annotation was computed. [2018-12-09 19:19:22,830 INFO L444 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)) [2018-12-09 19:19:22,830 INFO L448 ceAbstractionStarter]: For program point L307-1(line 307) no Hoare annotation was computed. [2018-12-09 19:19:22,830 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 322) no Hoare annotation was computed. [2018-12-09 19:19:22,831 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2018-12-09 19:19:22,831 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2018-12-09 19:19:22,831 INFO L444 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)))) [2018-12-09 19:19:22,831 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-12-09 19:19:22,831 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-12-09 19:19:22,831 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-12-09 19:19:22,831 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-12-09 19:19:22,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:19:22 BoogieIcfgContainer [2018-12-09 19:19:22,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:19:22,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:19:22,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:19:22,841 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:19:22,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:13" (3/4) ... [2018-12-09 19:19:22,845 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:19:22,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-09 19:19:22,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 19:19:22,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 19:19:22,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 19:19:22,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 19:19:22,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 19:19:22,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:19:22,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 19:19:22,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 19:19:22,855 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-09 19:19:22,856 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-09 19:19:22,856 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 19:19:22,856 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 19:19:22,857 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:19:22,857 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:19:22,876 WARN L221 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) [2018-12-09 19:19:22,876 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) [2018-12-09 19:19:22,901 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c1de8d47-430b-4df2-b8fb-e054957a75e8/bin-2019/utaipan/witness.graphml [2018-12-09 19:19:22,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:19:22,902 INFO L168 Benchmark]: Toolchain (without parser) took 9797.48 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 570.4 MB). Free memory was 948.1 MB in the beginning and 928.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 590.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:19:22,903 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:19:22,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:19:22,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:19:22,903 INFO L168 Benchmark]: Boogie Preprocessor took 26.19 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:19:22,903 INFO L168 Benchmark]: RCFGBuilder took 318.54 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:19:22,903 INFO L168 Benchmark]: TraceAbstraction took 9057.58 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 440.4 MB). Free memory was 1.1 GB in the beginning and 943.0 MB in the end (delta: 122.3 MB). Peak memory consumption was 562.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:19:22,903 INFO L168 Benchmark]: Witness Printer took 60.40 ms. Allocated memory is still 1.6 GB. Free memory was 943.0 MB in the beginning and 928.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:19:22,904 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 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.19 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.54 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9057.58 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 440.4 MB). Free memory was 1.1 GB in the beginning and 943.0 MB in the end (delta: 122.3 MB). Peak memory consumption was 562.7 MB. Max. memory is 11.5 GB. * Witness Printer took 60.40 ms. Allocated memory is still 1.6 GB. Free memory was 943.0 MB in the beginning and 928.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. 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, 141 locations, 1 error locations. SAFE Result, 9.0s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1852 SDtfs, 1501 SDslu, 5664 SDs, 0 SdLazy, 2990 SolverSat, 608 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1174 GetRequests, 1047 SyntacticMatches, 17 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=712occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9983756934627054 AbsIntWeakeningRatio, 0.9037037037037037 AbsIntAvgWeakeningVarsNumRemoved, 55.20740740740741 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 154 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 1247 PreInvPairs, 1303 NumberOfFragments, 914 HoareAnnotationTreeSize, 1247 FomulaSimplifications, 2194 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 58 FomulaSimplificationsInter, 4460 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1670 NumberOfCodeBlocks, 1670 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2105 ConstructedInterpolants, 0 QuantifiedInterpolants, 368765 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2541 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 516/559 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...