./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/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 cd9d3373e3670d73493569b1c43b551709fc0f6c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:42:08,715 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:42:08,716 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:42:08,722 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:42:08,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:42:08,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:42:08,723 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:42:08,724 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:42:08,725 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:42:08,726 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:42:08,726 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:42:08,726 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:42:08,727 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:42:08,727 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:42:08,728 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:42:08,728 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:42:08,729 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:42:08,730 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:42:08,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:42:08,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:42:08,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:42:08,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:42:08,734 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:42:08,734 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:42:08,734 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:42:08,735 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:42:08,735 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:42:08,736 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:42:08,736 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:42:08,737 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:42:08,737 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:42:08,737 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:42:08,737 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:42:08,738 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:42:08,738 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:42:08,738 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:42:08,739 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:42:08,746 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:42:08,746 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:42:08,747 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:42:08,747 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:42:08,747 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:42:08,748 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:42:08,748 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:42:08,749 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:42:08,749 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:42:08,749 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:42:08,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:42:08,750 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:42:08,750 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_6822eff1-9d91-4837-b860-859452e7824b/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 -> cd9d3373e3670d73493569b1c43b551709fc0f6c [2018-12-09 19:42:08,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:42:08,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:42:08,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:42:08,776 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:42:08,776 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:42:08,776 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product44_false-unreach-call_false-termination.cil.c [2018-12-09 19:42:08,811 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/data/948ddc550/e2c3037241a344cb85b69cf41901cf3f/FLAG3ebf8ea22 [2018-12-09 19:42:09,248 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:42:09,248 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/sv-benchmarks/c/product-lines/minepump_spec4_product44_false-unreach-call_false-termination.cil.c [2018-12-09 19:42:09,254 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/data/948ddc550/e2c3037241a344cb85b69cf41901cf3f/FLAG3ebf8ea22 [2018-12-09 19:42:09,262 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/data/948ddc550/e2c3037241a344cb85b69cf41901cf3f [2018-12-09 19:42:09,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:42:09,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:42:09,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:42:09,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:42:09,267 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:42:09,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09, skipping insertion in model container [2018-12-09 19:42:09,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:42:09,292 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:42:09,435 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:42:09,442 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:42:09,513 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:42:09,528 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:42:09,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09 WrapperNode [2018-12-09 19:42:09,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:42:09,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:42:09,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:42:09,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:42:09,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:42:09,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:42:09,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:42:09,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:42:09,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... [2018-12-09 19:42:09,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:42:09,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:42:09,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:42:09,569 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:42:09,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/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 19:42:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 19:42:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 19:42:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:42:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:42:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:42:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:42:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 19:42:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 19:42:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:42:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 19:42:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 19:42:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 19:42:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 19:42:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 19:42:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 19:42:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 19:42:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 19:42:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 19:42:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 19:42:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 19:42:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 19:42:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 19:42:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 19:42:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:42:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:42:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:42:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 19:42:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 19:42:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 19:42:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 19:42:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:42:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:42:09,897 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:42:09,898 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 19:42:09,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:42:09 BoogieIcfgContainer [2018-12-09 19:42:09,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:42:09,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:42:09,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:42:09,902 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:42:09,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:42:09" (1/3) ... [2018-12-09 19:42:09,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1142118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:42:09, skipping insertion in model container [2018-12-09 19:42:09,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:42:09" (2/3) ... [2018-12-09 19:42:09,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1142118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:42:09, skipping insertion in model container [2018-12-09 19:42:09,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:42:09" (3/3) ... [2018-12-09 19:42:09,904 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44_false-unreach-call_false-termination.cil.c [2018-12-09 19:42:09,912 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:42:09,918 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:42:09,929 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:42:09,949 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:42:09,949 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:42:09,949 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:42:09,949 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:42:09,949 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:42:09,949 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:42:09,949 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:42:09,949 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:42:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2018-12-09 19:42:09,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 19:42:09,968 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:09,969 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 19:42:09,970 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:09,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:09,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1541000830, now seen corresponding path program 1 times [2018-12-09 19:42:09,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:10,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:10,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:10,114 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 19:42:10,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:42:10,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:42:10,115 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:10,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:42:10,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:42:10,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:42:10,127 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2018-12-09 19:42:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:10,149 INFO L93 Difference]: Finished difference Result 266 states and 323 transitions. [2018-12-09 19:42:10,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:42:10,150 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 19:42:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:10,157 INFO L225 Difference]: With dead ends: 266 [2018-12-09 19:42:10,157 INFO L226 Difference]: Without dead ends: 133 [2018-12-09 19:42:10,160 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 19:42:10,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-09 19:42:10,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-12-09 19:42:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-09 19:42:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2018-12-09 19:42:10,192 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 46 [2018-12-09 19:42:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:10,192 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2018-12-09 19:42:10,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:42:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2018-12-09 19:42:10,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 19:42:10,194 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:10,194 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 19:42:10,194 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:10,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash -550238072, now seen corresponding path program 1 times [2018-12-09 19:42:10,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:10,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:10,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,196 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:10,252 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 19:42:10,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:42:10,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:42:10,252 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:10,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:42:10,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:42:10,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:42:10,254 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 3 states. [2018-12-09 19:42:10,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:10,266 INFO L93 Difference]: Finished difference Result 202 states and 231 transitions. [2018-12-09 19:42:10,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:42:10,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 19:42:10,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:10,267 INFO L225 Difference]: With dead ends: 202 [2018-12-09 19:42:10,267 INFO L226 Difference]: Without dead ends: 124 [2018-12-09 19:42:10,268 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 19:42:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-09 19:42:10,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-09 19:42:10,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-09 19:42:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 141 transitions. [2018-12-09 19:42:10,275 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 141 transitions. Word has length 47 [2018-12-09 19:42:10,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:10,275 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 141 transitions. [2018-12-09 19:42:10,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:42:10,275 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 141 transitions. [2018-12-09 19:42:10,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 19:42:10,276 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:10,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:42:10,276 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:10,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:10,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1279280585, now seen corresponding path program 1 times [2018-12-09 19:42:10,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:10,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:10,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,277 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:10,338 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 19:42:10,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:42:10,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:42:10,339 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:10,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:42:10,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:42:10,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:42:10,339 INFO L87 Difference]: Start difference. First operand 124 states and 141 transitions. Second operand 7 states. [2018-12-09 19:42:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:10,567 INFO L93 Difference]: Finished difference Result 374 states and 443 transitions. [2018-12-09 19:42:10,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:42:10,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 19:42:10,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:10,570 INFO L225 Difference]: With dead ends: 374 [2018-12-09 19:42:10,570 INFO L226 Difference]: Without dead ends: 274 [2018-12-09 19:42:10,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:42:10,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-12-09 19:42:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 250. [2018-12-09 19:42:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-12-09 19:42:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 294 transitions. [2018-12-09 19:42:10,596 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 294 transitions. Word has length 52 [2018-12-09 19:42:10,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:10,597 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 294 transitions. [2018-12-09 19:42:10,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:42:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 294 transitions. [2018-12-09 19:42:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 19:42:10,599 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:10,599 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:42:10,599 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:10,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:10,599 INFO L82 PathProgramCache]: Analyzing trace with hash 981285256, now seen corresponding path program 1 times [2018-12-09 19:42:10,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:10,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:10,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:10,601 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:10,701 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 19:42:10,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:42:10,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:42:10,702 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:10,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:42:10,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:42:10,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:42:10,703 INFO L87 Difference]: Start difference. First operand 250 states and 294 transitions. Second operand 10 states. [2018-12-09 19:42:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:10,994 INFO L93 Difference]: Finished difference Result 880 states and 1116 transitions. [2018-12-09 19:42:10,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 19:42:10,994 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-09 19:42:10,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:10,998 INFO L225 Difference]: With dead ends: 880 [2018-12-09 19:42:10,998 INFO L226 Difference]: Without dead ends: 654 [2018-12-09 19:42:11,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:42:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2018-12-09 19:42:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 642. [2018-12-09 19:42:11,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2018-12-09 19:42:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 782 transitions. [2018-12-09 19:42:11,040 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 782 transitions. Word has length 57 [2018-12-09 19:42:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:11,041 INFO L480 AbstractCegarLoop]: Abstraction has 642 states and 782 transitions. [2018-12-09 19:42:11,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:42:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 782 transitions. [2018-12-09 19:42:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 19:42:11,043 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:11,043 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:42:11,043 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:11,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:11,043 INFO L82 PathProgramCache]: Analyzing trace with hash 817931438, now seen corresponding path program 1 times [2018-12-09 19:42:11,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:11,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:11,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:11,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:11,044 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:11,088 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 19:42:11,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:42:11,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:42:11,088 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:11,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:42:11,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:42:11,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:42:11,089 INFO L87 Difference]: Start difference. First operand 642 states and 782 transitions. Second operand 4 states. [2018-12-09 19:42:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:11,319 INFO L93 Difference]: Finished difference Result 1647 states and 2170 transitions. [2018-12-09 19:42:11,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:42:11,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-09 19:42:11,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:11,324 INFO L225 Difference]: With dead ends: 1647 [2018-12-09 19:42:11,324 INFO L226 Difference]: Without dead ends: 1029 [2018-12-09 19:42:11,326 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:42:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2018-12-09 19:42:11,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 915. [2018-12-09 19:42:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2018-12-09 19:42:11,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1126 transitions. [2018-12-09 19:42:11,364 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1126 transitions. Word has length 61 [2018-12-09 19:42:11,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:11,364 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1126 transitions. [2018-12-09 19:42:11,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:42:11,364 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1126 transitions. [2018-12-09 19:42:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 19:42:11,365 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:11,366 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:42:11,366 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:11,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:11,366 INFO L82 PathProgramCache]: Analyzing trace with hash -512340523, now seen corresponding path program 1 times [2018-12-09 19:42:11,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:11,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:11,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:11,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:11,367 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 19:42:11,429 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:11,429 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:11,430 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-12-09 19:42:11,431 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [83], [92], [96], [100], [103], [108], [114], [116], [122], [125], [128], [138], [139], [162], [163], [204], [211], [214], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [268], [269], [274], [275], [276], [277], [294], [295], [296], [297], [298] [2018-12-09 19:42:11,452 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:11,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:11,811 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:42:11,811 INFO L272 AbstractInterpreter]: Visited 65 different actions 133 times. Merged at 13 different actions 19 times. Never widened. Performed 4459 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4459 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 19:42:11,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:11,816 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:42:12,002 INFO L227 lantSequenceWeakener]: Weakened 85 states. On average, predicates are now at 98.57% of their original sizes. [2018-12-09 19:42:12,002 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:42:12,043 INFO L418 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2018-12-09 19:42:12,043 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:42:12,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:42:12,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-09 19:42:12,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:12,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:42:12,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:42:12,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:42:12,045 INFO L87 Difference]: Start difference. First operand 915 states and 1126 transitions. Second operand 9 states. [2018-12-09 19:42:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:13,003 INFO L93 Difference]: Finished difference Result 1632 states and 2043 transitions. [2018-12-09 19:42:13,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-09 19:42:13,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2018-12-09 19:42:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:13,006 INFO L225 Difference]: With dead ends: 1632 [2018-12-09 19:42:13,006 INFO L226 Difference]: Without dead ends: 741 [2018-12-09 19:42:13,007 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:42:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-12-09 19:42:13,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 655. [2018-12-09 19:42:13,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2018-12-09 19:42:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 781 transitions. [2018-12-09 19:42:13,029 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 781 transitions. Word has length 89 [2018-12-09 19:42:13,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:13,029 INFO L480 AbstractCegarLoop]: Abstraction has 655 states and 781 transitions. [2018-12-09 19:42:13,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:42:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 781 transitions. [2018-12-09 19:42:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-09 19:42:13,031 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:13,031 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:13,031 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:13,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:13,032 INFO L82 PathProgramCache]: Analyzing trace with hash 732570223, now seen corresponding path program 1 times [2018-12-09 19:42:13,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:13,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:13,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:13,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:13,033 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 19:42:13,088 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:13,088 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:13,088 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-12-09 19:42:13,088 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [156], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-09 19:42:13,091 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:13,091 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:13,176 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:42:13,176 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 1931 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1931 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 19:42:13,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:13,177 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:42:13,269 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.66% of their original sizes. [2018-12-09 19:42:13,269 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:42:13,318 INFO L418 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-12-09 19:42:13,318 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:42:13,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:42:13,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-09 19:42:13,318 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:13,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:42:13,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:42:13,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:42:13,319 INFO L87 Difference]: Start difference. First operand 655 states and 781 transitions. Second operand 11 states. [2018-12-09 19:42:14,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:14,908 INFO L93 Difference]: Finished difference Result 1697 states and 2068 transitions. [2018-12-09 19:42:14,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 19:42:14,908 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2018-12-09 19:42:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:14,910 INFO L225 Difference]: With dead ends: 1697 [2018-12-09 19:42:14,911 INFO L226 Difference]: Without dead ends: 1066 [2018-12-09 19:42:14,912 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:42:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-12-09 19:42:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1030. [2018-12-09 19:42:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2018-12-09 19:42:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1219 transitions. [2018-12-09 19:42:14,940 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1219 transitions. Word has length 134 [2018-12-09 19:42:14,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:14,941 INFO L480 AbstractCegarLoop]: Abstraction has 1030 states and 1219 transitions. [2018-12-09 19:42:14,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:42:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1219 transitions. [2018-12-09 19:42:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-09 19:42:14,943 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:14,943 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, 1, 1] [2018-12-09 19:42:14,943 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:14,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:14,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2056154871, now seen corresponding path program 1 times [2018-12-09 19:42:14,943 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:14,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:14,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:14,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:14,944 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 19:42:14,994 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:14,994 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:14,994 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-09 19:42:14,995 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [111], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [156], [160], [161], [162], [163], [168], [170], [171], [172], [201], [204], [208], [214], [217], [221], [222], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [270], [271], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-09 19:42:14,996 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:14,997 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:15,928 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:42:15,929 INFO L272 AbstractInterpreter]: Visited 109 different actions 807 times. Merged at 17 different actions 70 times. Never widened. Performed 30999 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30999 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 14 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-09 19:42:15,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:15,931 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:42:15,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:15,931 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/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 19:42:15,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:15,937 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:42:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:16,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:42:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 19:42:16,128 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:42:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 19:42:16,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:42:16,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-12-09 19:42:16,645 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:16,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:42:16,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:42:16,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-09 19:42:16,646 INFO L87 Difference]: Start difference. First operand 1030 states and 1219 transitions. Second operand 8 states. [2018-12-09 19:42:16,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:16,807 INFO L93 Difference]: Finished difference Result 2723 states and 3270 transitions. [2018-12-09 19:42:16,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:42:16,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2018-12-09 19:42:16,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:16,811 INFO L225 Difference]: With dead ends: 2723 [2018-12-09 19:42:16,812 INFO L226 Difference]: Without dead ends: 1717 [2018-12-09 19:42:16,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 242 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-09 19:42:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2018-12-09 19:42:16,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1714. [2018-12-09 19:42:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2018-12-09 19:42:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2011 transitions. [2018-12-09 19:42:16,860 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2011 transitions. Word has length 130 [2018-12-09 19:42:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:16,860 INFO L480 AbstractCegarLoop]: Abstraction has 1714 states and 2011 transitions. [2018-12-09 19:42:16,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:42:16,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2011 transitions. [2018-12-09 19:42:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-09 19:42:16,863 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:16,863 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, 1, 1] [2018-12-09 19:42:16,863 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:16,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:16,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1580493578, now seen corresponding path program 1 times [2018-12-09 19:42:16,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:16,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:16,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:16,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:16,865 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 19:42:16,900 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:16,900 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:16,900 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-09 19:42:16,900 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [156], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-09 19:42:16,902 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:16,902 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:17,023 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:42:17,023 INFO L272 AbstractInterpreter]: Visited 55 different actions 73 times. Merged at 6 different actions 6 times. Never widened. Performed 4014 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4014 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 19:42:17,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:17,026 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:42:17,137 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-09 19:42:17,137 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:42:17,217 INFO L418 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-12-09 19:42:17,217 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:42:17,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:42:17,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-09 19:42:17,217 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:17,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 19:42:17,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 19:42:17,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-12-09 19:42:17,218 INFO L87 Difference]: Start difference. First operand 1714 states and 2011 transitions. Second operand 15 states. [2018-12-09 19:42:19,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:19,447 INFO L93 Difference]: Finished difference Result 4888 states and 5958 transitions. [2018-12-09 19:42:19,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 19:42:19,447 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 130 [2018-12-09 19:42:19,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:19,455 INFO L225 Difference]: With dead ends: 4888 [2018-12-09 19:42:19,455 INFO L226 Difference]: Without dead ends: 3340 [2018-12-09 19:42:19,458 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:42:19,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2018-12-09 19:42:19,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3116. [2018-12-09 19:42:19,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3116 states. [2018-12-09 19:42:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 3698 transitions. [2018-12-09 19:42:19,553 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 3698 transitions. Word has length 130 [2018-12-09 19:42:19,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:19,553 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 3698 transitions. [2018-12-09 19:42:19,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 19:42:19,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 3698 transitions. [2018-12-09 19:42:19,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-09 19:42:19,556 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:19,556 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, 1, 1] [2018-12-09 19:42:19,556 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:19,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:19,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1340253832, now seen corresponding path program 1 times [2018-12-09 19:42:19,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:19,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:19,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:19,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:19,557 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 19:42:19,639 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:19,639 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:19,640 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-09 19:42:19,640 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [158], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-09 19:42:19,641 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:19,641 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:20,116 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:42:20,116 INFO L272 AbstractInterpreter]: Visited 109 different actions 484 times. Merged at 16 different actions 46 times. Never widened. Performed 15870 root evaluator evaluations with a maximum evaluation depth of 3. Performed 15870 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 19:42:20,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:20,118 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:42:20,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:20,119 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/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 19:42:20,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:20,124 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:42:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:20,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:42:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:42:20,267 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:42:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 19:42:20,404 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 19:42:20,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 19:42:20,404 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 19:42:20,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 19:42:20,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 19:42:20,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 19:42:20,405 INFO L87 Difference]: Start difference. First operand 3116 states and 3698 transitions. Second operand 15 states. [2018-12-09 19:42:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:21,314 INFO L93 Difference]: Finished difference Result 5120 states and 6586 transitions. [2018-12-09 19:42:21,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 19:42:21,314 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 130 [2018-12-09 19:42:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:21,323 INFO L225 Difference]: With dead ends: 5120 [2018-12-09 19:42:21,323 INFO L226 Difference]: Without dead ends: 3393 [2018-12-09 19:42:21,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 252 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 19:42:21,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2018-12-09 19:42:21,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 2485. [2018-12-09 19:42:21,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2485 states. [2018-12-09 19:42:21,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 2931 transitions. [2018-12-09 19:42:21,418 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 2931 transitions. Word has length 130 [2018-12-09 19:42:21,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:21,418 INFO L480 AbstractCegarLoop]: Abstraction has 2485 states and 2931 transitions. [2018-12-09 19:42:21,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 19:42:21,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 2931 transitions. [2018-12-09 19:42:21,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-09 19:42:21,420 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:21,420 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] [2018-12-09 19:42:21,420 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:21,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:21,420 INFO L82 PathProgramCache]: Analyzing trace with hash -164703493, now seen corresponding path program 1 times [2018-12-09 19:42:21,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:21,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:21,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:21,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:21,421 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:21,464 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 19:42:21,464 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:21,464 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:21,464 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-12-09 19:42:21,465 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [156], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-09 19:42:21,466 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:21,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:21,856 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:42:21,856 INFO L272 AbstractInterpreter]: Visited 104 different actions 371 times. Merged at 17 different actions 32 times. Never widened. Performed 12026 root evaluator evaluations with a maximum evaluation depth of 3. Performed 12026 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 19:42:21,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:21,858 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:42:21,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:21,858 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/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 19:42:21,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:21,864 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:42:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:21,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:42:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 19:42:21,950 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:42:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 19:42:22,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:42:22,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 19:42:22,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:22,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:42:22,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:42:22,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:42:22,058 INFO L87 Difference]: Start difference. First operand 2485 states and 2931 transitions. Second operand 6 states. [2018-12-09 19:42:22,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:22,132 INFO L93 Difference]: Finished difference Result 5074 states and 6142 transitions. [2018-12-09 19:42:22,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:42:22,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-12-09 19:42:22,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:22,138 INFO L225 Difference]: With dead ends: 5074 [2018-12-09 19:42:22,138 INFO L226 Difference]: Without dead ends: 2613 [2018-12-09 19:42:22,142 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 247 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 19:42:22,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2018-12-09 19:42:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2575. [2018-12-09 19:42:22,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2575 states. [2018-12-09 19:42:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3025 transitions. [2018-12-09 19:42:22,221 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3025 transitions. Word has length 126 [2018-12-09 19:42:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:22,221 INFO L480 AbstractCegarLoop]: Abstraction has 2575 states and 3025 transitions. [2018-12-09 19:42:22,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:42:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3025 transitions. [2018-12-09 19:42:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-09 19:42:22,224 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:22,224 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] [2018-12-09 19:42:22,224 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:22,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:22,224 INFO L82 PathProgramCache]: Analyzing trace with hash 75536253, now seen corresponding path program 1 times [2018-12-09 19:42:22,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:22,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:22,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:22,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:22,225 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 19:42:22,275 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:22,275 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:22,275 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-12-09 19:42:22,275 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [158], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-09 19:42:22,276 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:22,276 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:22,331 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:42:22,331 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 1817 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1817 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 19:42:22,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:22,332 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:42:22,400 INFO L227 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 96.62% of their original sizes. [2018-12-09 19:42:22,400 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:42:22,422 INFO L418 sIntCurrentIteration]: We unified 125 AI predicates to 125 [2018-12-09 19:42:22,422 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:42:22,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:42:22,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-12-09 19:42:22,422 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:22,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:42:22,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:42:22,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:42:22,422 INFO L87 Difference]: Start difference. First operand 2575 states and 3025 transitions. Second operand 11 states. [2018-12-09 19:42:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:23,275 INFO L93 Difference]: Finished difference Result 4769 states and 5629 transitions. [2018-12-09 19:42:23,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:42:23,275 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2018-12-09 19:42:23,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:23,282 INFO L225 Difference]: With dead ends: 4769 [2018-12-09 19:42:23,282 INFO L226 Difference]: Without dead ends: 2218 [2018-12-09 19:42:23,287 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-12-09 19:42:23,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2018-12-09 19:42:23,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2199. [2018-12-09 19:42:23,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2199 states. [2018-12-09 19:42:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 2587 transitions. [2018-12-09 19:42:23,382 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 2587 transitions. Word has length 126 [2018-12-09 19:42:23,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:23,382 INFO L480 AbstractCegarLoop]: Abstraction has 2199 states and 2587 transitions. [2018-12-09 19:42:23,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:42:23,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 2587 transitions. [2018-12-09 19:42:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-12-09 19:42:23,385 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:23,386 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:23,386 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:23,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:23,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1782101424, now seen corresponding path program 1 times [2018-12-09 19:42:23,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:23,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:23,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:23,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:23,387 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:42:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-09 19:42:23,450 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:42:23,450 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:42:23,450 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-12-09 19:42:23,450 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [114], [116], [119], [122], [125], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [158], [160], [161], [162], [163], [171], [172], [201], [204], [208], [211], [214], [217], [221], [222], [226], [227], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [272], [273], [274], [275], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-09 19:42:23,451 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:42:23,451 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:42:23,607 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:42:23,607 INFO L272 AbstractInterpreter]: Visited 75 different actions 131 times. Merged at 13 different actions 13 times. Never widened. Performed 4204 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4204 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 19:42:23,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:23,610 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:42:23,729 INFO L227 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 97.24% of their original sizes. [2018-12-09 19:42:23,729 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:42:23,820 INFO L418 sIntCurrentIteration]: We unified 157 AI predicates to 157 [2018-12-09 19:42:23,820 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:42:23,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:42:23,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [8] total 29 [2018-12-09 19:42:23,820 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:42:23,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-12-09 19:42:23,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-12-09 19:42:23,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-12-09 19:42:23,821 INFO L87 Difference]: Start difference. First operand 2199 states and 2587 transitions. Second operand 23 states. [2018-12-09 19:42:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:42:26,085 INFO L93 Difference]: Finished difference Result 4058 states and 4803 transitions. [2018-12-09 19:42:26,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-09 19:42:26,085 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 158 [2018-12-09 19:42:26,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:42:26,090 INFO L225 Difference]: With dead ends: 4058 [2018-12-09 19:42:26,090 INFO L226 Difference]: Without dead ends: 2011 [2018-12-09 19:42:26,092 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 179 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=268, Invalid=1712, Unknown=0, NotChecked=0, Total=1980 [2018-12-09 19:42:26,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-12-09 19:42:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1747. [2018-12-09 19:42:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1747 states. [2018-12-09 19:42:26,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2066 transitions. [2018-12-09 19:42:26,158 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2066 transitions. Word has length 158 [2018-12-09 19:42:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:42:26,158 INFO L480 AbstractCegarLoop]: Abstraction has 1747 states and 2066 transitions. [2018-12-09 19:42:26,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-12-09 19:42:26,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2066 transitions. [2018-12-09 19:42:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-12-09 19:42:26,160 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:42:26,160 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:42:26,160 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:42:26,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:42:26,160 INFO L82 PathProgramCache]: Analyzing trace with hash 206775980, now seen corresponding path program 2 times [2018-12-09 19:42:26,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:42:26,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:26,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:42:26,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:42:26,161 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:42:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:42:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:42:26,302 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:42:26,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:42:26 BoogieIcfgContainer [2018-12-09 19:42:26,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:42:26,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:42:26,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:42:26,401 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:42:26,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:42:09" (3/4) ... [2018-12-09 19:42:26,403 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:42:26,497 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6822eff1-9d91-4837-b860-859452e7824b/bin-2019/utaipan/witness.graphml [2018-12-09 19:42:26,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:42:26,498 INFO L168 Benchmark]: Toolchain (without parser) took 17234.43 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 957.1 MB in the beginning and 1.4 GB in the end (delta: -441.8 MB). Peak memory consumption was 718.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:42:26,499 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:42:26,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:42:26,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.76 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 19:42:26,499 INFO L168 Benchmark]: Boogie Preprocessor took 21.08 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 19:42:26,499 INFO L168 Benchmark]: RCFGBuilder took 328.92 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:42:26,499 INFO L168 Benchmark]: TraceAbstraction took 16501.89 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 998.2 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -353.6 MB). Peak memory consumption was 644.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:42:26,499 INFO L168 Benchmark]: Witness Printer took 96.61 ms. Allocated memory is still 2.2 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:42:26,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 328.92 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16501.89 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 998.2 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -353.6 MB). Peak memory consumption was 644.7 MB. Max. memory is 11.5 GB. * Witness Printer took 96.61 ms. Allocated memory is still 2.2 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 752]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L757] int cleanupTimeShifts = 4; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; [L830] int retValue_acc ; [L831] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L835] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L836] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] int retValue_acc ; [L467] retValue_acc = 1 [L468] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L837] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L837] tmp = valid_product() [L839] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L841] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L842] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] int splverifierCounter ; [L481] int tmp ; [L482] int tmp___0 ; [L483] int tmp___1 ; [L484] int tmp___2 ; [L487] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L489] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L491] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L497] tmp = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L501] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] COND TRUE waterLevel < 2 [L872] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L501] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___2)) [L525] tmp___1 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L536] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L712] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L933] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L712] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L596] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L600] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L650] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L654] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] retValue_acc = isMethaneLevelCritical() [L656] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L629] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] tmp = isMethaneAlarm() [L631] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L635] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L619] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L635] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L600] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L577] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L536] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L489] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L491] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___2)) [L525] tmp___1 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L536] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L577] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L536] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L489] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L491] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___2)) [L525] tmp___1 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L536] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 146 locations, 1 error locations. UNSAFE Result, 16.4s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 9.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2525 SDtfs, 3644 SDslu, 9088 SDs, 0 SdLazy, 4184 SolverSat, 1270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1533 GetRequests, 1336 SyntacticMatches, 20 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 955 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3116occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 8 AbstIntIterations, 5 AbstIntStrong, 0.9976464237951278 AbsIntWeakeningRatio, 0.9208860759493671 AbsIntAvgWeakeningVarsNumRemoved, 63.22943037974684 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1728 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1838 NumberOfCodeBlocks, 1838 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2039 ConstructedInterpolants, 0 QuantifiedInterpolants, 346410 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2456 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 360/395 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...